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MASTER LOBE PROFILE CATALOG COMPCAMS.COM
1.800.999.0853
TABLE OF CONTENTS
TABLE OF CONTENTS
HOW TO ORDER Selecting A Core...........................................2 Selecting Lobes............................................2 Choosing Lobe Separation Angle...................2 Determining Part Number/Grind Number And Ordering.............................................3 Roller Cam Lobe Suffix Codes.......................3 Core Listings Non-Standard Journal Size......3 Special Services...........................................4 Core Listing..................................................5
HYDRAULIC FLAT TAPPET High Energy™.............................................11 Magnum.....................................................11 Dual Energy™.............................................12 Thumpr™....................................................12 New Nostalgia Plus™..................................13 Race...........................................................13 Xtreme Energy™.........................................14 Xtreme Energy XFI™....................................15 Purple Plus.................................................15 Xtreme Mopar.............................................16 Xtreme 4x4.................................................16 MPM Stocker..............................................16 CRL Stocker................................................17 USI USX UPI UPX Stocker............................17
HYDRAULIC ROLLER High Energy™ & Magnum − Low & High Lift....................................18 Tri Power Xtreme™......................................19 Thumpr™....................................................20 QND...........................................................20 SLW............................................................21 Xtreme Energy™.........................................21 Xtreme 4x4.................................................22 Xtreme Energy XFI™....................................23 QXI.............................................................24 QXX............................................................25 QNI.............................................................26 QNX............................................................27 Xtreme Marine™.........................................27 Xtreme Marine™ − High Lift........................28 HUC............................................................28 HLO............................................................29 Xtreme RPM for LS1...................................30 Xtreme RPR................................................31 Xtreme Energy™ XE-R for LS1.....................31 Xtreme Energy™ LSL for LS1.......................32 Xtreme Energy™ LSG for LS2......................33 Xtreme Energy™ LXL for LS1.......................33 Xtreme Energy™ LSK for LS1......................34 Xtreme Energy™ VVI....................................35 L3E.............................................................35 LSN & LSD for DOD....................................35 EHI EHX......................................................36 FHI FHX......................................................38
DHI DHX.....................................................39 EPM EPX Ultra RPM....................................40 DTL............................................................40 Cheater HR Lift Rule Competition................41 Mustang R Lift Rule Competition.................42 ESI ESX Stocker..........................................42 LJT.............................................................44 LJF.............................................................44 EZJ.............................................................44 EFJ.............................................................44 DSI Stocker................................................45 CEI Stocker.................................................45 CZK............................................................45 DSK............................................................45 FSHR Stocker.............................................46 Xtreme Energy™ Harley...............................46 V-Thumder Twin Cam.................................47 Thumpr™ Twin Cam....................................47
SOLID FLAT TAPPET High Energy™ & Magnum............................48 New Nostalgia Plus™..................................48 Xtreme Energy™.........................................48 Thumpr......................................................49 High Torque................................................49 High RPM...................................................49 Hi-Tech™....................................................50 Tight Lash..................................................50 High RPM II.................................................50 XTQ............................................................51 XTX............................................................52 JF .330" Lift...............................................52 HF & JF Lift Rule.........................................53 JF...............................................................53 Max Area (MA)............................................54 Max Area (MA) Lift Rule..............................54 USI USX UPI UPX Stocker Flat.....................59 MH.............................................................59 GRI.............................................................60 MEM...........................................................60 MHF...........................................................61 FL & SQ......................................................61 High RPM Dash 12......................................62 Dash 13......................................................62 F3 Exhaust.................................................63 D3C............................................................63 XX..............................................................63 High Rocker Ratio.......................................64 High Rocker Ratio II....................................65 N................................................................65 Oval +........................................................66 FE .875".....................................................66 TDLC..........................................................66 T1N − Very High RPM .875" Flat.................67 TCT − High Ratio .875" Flat........................67 NRX............................................................67 Dir 2.3 Ratio Conversions − .875" Flat........68
BB GG .875" Plate......................................68 TDP Flat Plate.............................................68 TDP 2 Flat Plate..........................................69 TDP Flat Plate − Lower Lobe Lift................69 HY Flat Plate...............................................69 Chrysler Special..........................................69 MP.............................................................70 MM.............................................................70
SOLID ROLLER High Energy™ Street...................................71 Xtreme Energy™ Street...............................71 LSA & LSB Street Rollers............................72 Xtreme Energy™ Duramax Street................73 Base Design...............................................73 Hi-Tech™....................................................75 Hi-Tech™ .420" Exhaust.............................75 Hi-Tech™ .420"...........................................76 Hi-Tech™ .440" Intake................................76 High Torque .420" Exhaust.........................77 High Torque .460".......................................77 High Ratio − High RPM Super Stock...........77 NC..............................................................78 NSC............................................................78 RZ..............................................................79 RZ Low Lift.................................................79 AS Endurance.............................................80 SRI SRX High Ratio.....................................80 RT..............................................................81 CR..............................................................81 CR Lift Rule................................................82 RX..............................................................83 TC..............................................................83 ZT...............................................................84 ZS..............................................................84 TD, TJ & TJS...............................................85 TS..............................................................85 High Ratio Restricted..................................86 RC..............................................................86 RP..............................................................87 SP..............................................................87 High Torque .406".......................................88 High Torque .440".......................................88 HXL............................................................88 QRI.............................................................89 HXX............................................................90 HXX HL.......................................................90 HXX LL.......................................................90 IXL..............................................................91 TK..............................................................91 TK Lift Rule.................................................92 SPL............................................................92 VK Lift Rule.................................................93 CSZ............................................................93 DSZ............................................................94 TK .455".....................................................95 TK HL & SP-TK High Lift..............................95
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CPI Drag...................................................120 PRI PLI Pro Stock Drag..............................120 PZI Pro Stock Drag....................................122 PEZ PFZ PZZ Pro Stock.............................123 SPH & SPI Pro Stock Drag.........................124 JI Pro Stock Drag......................................124 PNI Pro Stock Drag...................................124 DKN Pro Stock Drag..................................124 FPI Pro Stock Drag....................................125 FOS Pro Stock Drag..................................125 FSL Pro Stock Drag...................................125 FDZ Pro Stock Drag..................................125 FGZ Pro Stock Drag..................................126 FPJ Pro Stock Drag...................................126 DJP .........................................................126 PSB PBM PBL Pro Mod Drag.....................127 PSA Pro Stock Drag..................................127 PMZ Pro Mod Drag...................................127 PIC Pro Stock Drag...................................128 DRX Drag Exhaust....................................128 XK Pro Stock Drag....................................128 XKL Pro Stock Drag..................................129 XK .635" Pro Stock Drag Exhaust.............129 XKH Exhaust.............................................129 XM Pro Exhaust........................................130 ZLX Pro Stock Drag Exhaust.....................130 NX Pro Stock Drag Exhaust.......................130 NXX .........................................................131 CPX Drag..................................................132 VOX Pro Drag............................................132 TXS Pro....................................................132 PRX PLX Pro Stock Drag...........................133 PRZ Pro Stock Drag..................................133 PVX Pro Stock Drag..................................134 SPX Pro Stock Drag..................................134 XCM Pro Stock Drag.................................134 XNR..........................................................134 SXZ Pro Stock Drag..................................135 XRX Pro Stock Drag..................................135 PVS Pro Stock Drag Exhaust.....................135 ZZX Pro Stock Drag Exhaust.....................135 PZN PZJ PYJ Pro Stock Drag.....................136 DXP Pro Stock Drag..................................136 XCH Pro Stock Drag..................................137 TXJ Pro Stock Drag...................................137 PNX Pro Stock Drag..................................137 PQX PQD Pro Stock Drag..........................137 XMZ XJZ Pro Mod Drag.............................138 PXC Pro Stock Drag..................................138 UDR Fuel & ALC Intake..............................139 FDR Fuel & ALC Intake..............................139 FCX Fuel & ALC Exhaust............................140 EF Fuel & ALC Intake................................140 FLI FLN Fuel Intake...................................140 FLX Fuel Exhaust......................................141 NFV Top Fuel Pro Drag (2012/2013)..........141 Chrysler Special Race...............................141
OVERHEAD CAM (PIVOTING FOLLOWER) Ford Modular Xtreme Energy™ 4.6 & 5.4L − SOHC or DOHC..................142 Modular Stocker.......................................143 MHS Modular Stocker...............................144 MH 2V & 4V Modular Race........................145 MS 2V & 4V Modular Race........................145 MZ 2V & 4V Modular Race........................146 Ford Modular Xtreme Energy™ 4.6 & 5.4L − 3V.....................................146 Ford Modular RSS Race − 3V....................147 Ford Coyote NSRI & NSRX Street − 4V......147 Ford Coyote CY-R......................................148 Ford Coyote CRI & CRX Race − 4V............148 Ford 2000-2300 OHC Street.....................149 Ford 2000-2300 OHC Race.......................150 Ford 2000-2300 OHC Race Roller Follower.......................................150 Ford 2300 − FP Roller..............................151 GM Ecotech − Xtreme Energy™ Hydraulic Roller OHC..............................151 Mitsubishi 4G63 − Xtreme Energy™ Hydraulic Roller OHC..............................152 Nissan L16, 18, 20B.................................153 Toyota 20R-22RE......................................153 SOH OHC Rollers for Ford 427 SOHC.........154 VM OHC Rollers for Ford 427 SOHC...........154
OVERHEAD CAMS (DIRECT ACTING) VW or Direct 1" Tappet.............................155 OHC − Multipurpose Bucket.....................155 Quad 4 − Bucket......................................155 OHZ − Street/Strip Bucket........................155 OHRX − High RPM Bucket.........................156 OHRVX − High Lift....................................156 XCOH Exhaust High Lift.............................156 OHRXA − Street Intake..............................156 OHRXA − Street Exhaust...........................156 PCI Intake − Limited RPM OHC 33mm Bucket........................................157 PCX Exhaust − Limited RPM OHC 33mm Bucket........................................157 PDI Intake − Limited RPM OHC 33mm Bucket........................................157 PDX Exhaust − Limited RPM OHC 31.5 mm Bucket....................................157 OHV Intake 38-40mm Bucket...................158 XCO Exhaust 35-40mm Bucket.................158 XCO Intake 38-40mm Bucket...................158 Thumpr™ Flathead Ford − Direct Solid 1" Tappet (CCW Rotation).......................158 FC Solids..................................................159
TABLE OF CONTENTS
DIX.............................................................95 UB..............................................................96 UBL............................................................97 UBA............................................................97 UBLL..........................................................97 UBR............................................................98 GCI & GCX..................................................98 ULG UVX High Ratio....................................98 LDP XDL Endurance....................................99 HPX............................................................99 DLB..........................................................100 DNW.........................................................100 DLS..........................................................101 DSP..........................................................101 DSS..........................................................102 DSL..........................................................102 OTC..........................................................103 ETC..........................................................103 DTT..........................................................104 DPC & DPD...............................................104 HOI & HOX................................................105 XDP..........................................................106 DZL..........................................................106 UL............................................................106 KZU..........................................................107 KEM.........................................................107 CE Drag Intake..........................................107 High RPM Intake.......................................108 Dash 31....................................................108 Mountain Motor........................................108 Rev Drag Intake........................................109 RX Drag Intake.........................................109 RX Pro Drag Intake...................................110 High RPM Exhaust....................................110 JX Drag Exhaust.......................................111 XCX Drag Exhaust.....................................111 XJX Drag Exhaust.....................................112 XJS Drag Exhaust.....................................113 Pro Mod Exhaust.......................................114 VOI Pro Drag.............................................114 DR Pro Drag Intake...................................114 RS Drag Intake ........................................115 PQ Pro Stock Drag....................................115 TS Pro......................................................115 TS+ Pro....................................................116 TSP Pro....................................................116 DRZ Pro Stock Drag..................................116 DQS Pro Stock Drag..................................116 DRS Drag.................................................117 DRD Pro Stock Drag..................................117 DRM Pro Stock Drag.................................117 DRI Pro Stock Drag...................................118 DZI Pro Stock Drag...................................118 DRP Pro Stock Drag..................................119 DKL Pro Drag............................................119 TDS Pro Stock Drag..................................119 HDZ Pro Stock Drag..................................119
TABLE OF CONTENTS
HOW TO ORDER
HOW TO ORDER
4
COMP Cams® leads the industry in camshaft lobe offerings. With thousands of active lobes in the COMP® library, the combinations are infinite for any given engine. That means that you can have a cam ground to your specific needs, and you have the broadest selection of lobes available anywhere.
CHOOSING A CAM FOR YOUR SPECIFIC APPLICATION IS A FOUR-STEP PROCESS:
1. Select a core. 2. Select the lobes. 3. Select a lobe separation angle. 4. Determine the part number and grind number, and order the cam.
1. SELECTING A CORE Please see the complete core list on pages 11-159. The list is separated into the different cam core types. Once it is determined what is available for your application, we recommend contacting our technical support staff or your COMP Cams salesman for additional information and a proper core recommendation.
2. SELECTING LOBES The lobes are listed on pages 8-61 and represent the most current library of lobes offered by COMP Cams®. They are arranged in groups, each of which is unique in its application. Along with each group is a description of each type, which is intended to help clarify each family of lobes so that you may accurately select lobes for your application. Some lobes specifically designated to be intake or exhaust lobes do not necessarily have to be run on the valve for which they were designed. If an exhaust lobe has the desired spec for intake (or vise versa) they may be used in that manner. Keep in mind while viewing the listings that certain flat tappet lobes are designed to be used only with correct diameter lifters.
3. CHOOSING LOBE SEPARATION ANGLE Lobe separation angles (the angle in cam degrees between the intake and exhaust lobe are also referred to as "lobe centers") are very engine combination dependent. In general, a tighter separation (ex. 104°106°) results in a "peakier" torque curve more suited to stick-shift cars with multiple gear ratios to change between. Wider lobe separation (ex. 110°-112°) results in a broader, flatter torque curve that is more suited to automatic transmission cars with fewer gears from which to choose. Therefore, engines have to be more powerful over a broader RPM range. Also, as lobes get larger at .050" duration (275° and up), it is necessary to begin widening separation angles to lessen the amount of overlap that accumulates from the larger lobes.
One final note about lobe separation angles − the cam cores that are available for each application are designed for nominal, standard lobe separation angles. Straying from this nominal angle too far in one direction or another can result in the heat-treated surface of the core being ground through to the soft material underneath. Soft lobes will fail in an engine if allowed to run for very long. Whether or not the heat-treated surface is ground through also is obviously dependent on the lobe being ground on the core. Tool steel cores are much more accommodating to various LSA values and could be considered. Please speak with a COMP Cams® representative for a recommendation. The bottom line is that not all grinds can go on every core that is available. More popular engines, like the Small Block Chevy, have a variety of cores available with varying lobe separation angles that can accommodate almost any grind. Less popular applications, like the Flathead Ford V8, only have one core available. Therefore, they are somewhat limited in terms of what grind will fit on the single existing core.
4. DETERMINING A PART NUMBER/GRIND NUMBER AND ORDERING With the part number determined in the core selection process, the grind number is the final step prior to ordering the cam. This process is simple and is accomplished by picking up the "lobe number" that appears in the left column of the lobe selection chart. The intake lobe will be first and the exhaust lobe will be second, followed by the lobe separation angle. For example, if lobe 5201 is selected as the intake and 5203 is selected as the exhaust, with a 106° lobe separation angle and this configuration is to be ground on a Small Block Chevy core, the full number for ordering that cam would be:
Part #: 12-000-5
Grind #: CS 5201/5203-H106
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When it comes to ordering a roller cam, there are two things that need to be considered: journal diameter and roller lifter wheel diameter. Journal size and wheel diameter are very important in making sure the lobe is performing to the specifications you require. For example, if you were selecting lobes for a custom grind Big Block Chevrolet cam then you would need to make sure the lobes were designed for a Big Block Chevrolet journal diameter (1.948"). If Small Block Chevrolet lobes were used instead, the specifications of the cam would be inaccurate. The journal diameter of a Small Block Chevrolet is 1.868". The lobes on the big block cam would "grow" approximately 2° if ground using small block lobe designs. The same principle applies to various roller lifter wheel diameters. COMP Cams® has done the math for you, so all you need to do is make sure you order the lobes with the correct suffixes to signify the proper journal diameter and roller lifter wheel diameter.
MASTER SUFFIX CODES FOR VARIOUS ROLLER CAM JOURNAL DIAMETERS: T N S B F R M
1.750" (Very Small-V6 Buick, etc.) 0.900" Base Circle Diameter (Any Journal Size) 1.868" (Small Block Chevrolet) 1.948" or 1.968" (Big Block Chevrolet or 50mm) 2.036", 2.051" or 2.081" (Small Block Ford and Cleveland) 2.1653" or 2.1234" (55mm, LS1 or Big Block Ford) 2.3622" (60mm)
MASTER SUFFIX CODES FOR VARIOUS ROLLER LIFTER WHEEL DIAMETERS: E 0.812" (from 0.792" to 0.832") G 0.850" (from 0.830" to 0.870") H 0.950" (from 0.930" to 0.970") U 2.000" (1.000" Radius Sliding Tappet) No Suffix Standard (from 0.750" to 0.790")
EXAMPLES: If you wanted to order a cam using lobe #4314 on the intake and lobe #4074 on the exhaust for a Big Block Chevy cam with standard journals, standard .750" lifter wheel diameter and a 110° lobe separation, your grind number would be: CB 4314B/4074B R110 However, if you wanted to order a cam with the same specs for a Big Block Chevy but with 55mm journals and a .812" lifter wheel diameter, your grind number would be: CB 4314RE/4074RE R110
CORE LISTINGS NON-STANDARD JOURNAL SIZE CHEVROLET SMALL BLOCK 1.868"
Stock Chevy Bearing Size
1.875" 1.948" 1.968"
Small Roller Bearing Oversize Babbitt Bearing 50mm Roller Bearing
2.165"
55mm Babbitt or Roller Bearing
CHEVROLET BIG BLOCK 1.948"
Stock Chevy Bearing Size
1.968" 2.124" 2.165"
50mm Roller Bearing 54mm Babbitt or Roller Bearing 55mm Babbitt or Roller Bearing
2.362"
60mm Babbitt or Roller Bearing
FORD SMALL BLOCK, 351 WINDSOR & SVO BLOCK Journal #1 – 2.080"
Stock Ford Bearing Size
Journal #2 – 2.065" Journal #3 – 2.050" Journal #4 – 2.035" Journal #5 – 2.020" Journal #1, 2, 3 & 4 – 2.165" Journal #5 – 1.968"
Stock Ford Bearing Size Stock Ford Bearing Size Stock Ford Bearing Size Stock Ford Bearing Size
All Journals – 2.051"
52mm Roller Bearing
All Journals – 2.081"
Oversize Babbitt Bearing
55mm Babbitt or Roller Bearing 50mm Roller Bearing
CHRYSLER SMALL BLOCK Journal #1 – 1.998"
Stock Chrysler Bearing Size
Journal #2 – 1.982" Journal #3 – 1.967" Journal #4 – 1.951" Journal #5 – 1.561" Journal #1, 2, 3, & 4 – 1.968" Journal #5 – 1.575"
Stock Chrysler Bearing Size Stock Chrysler Bearing Size Stock Chrysler Bearing Size Stock Chrysler Bearing Size
All Journals – 1.968"
50mm Roller Bearing
2.362"
50mm Roller Bearing Standard Babbitt Bearing 60mm Babbitt or Roller Bearing
HOW TO ORDER
ROLLER CAM LOBE SUFFIX CODES
HOW TO ORDER
SPECIAL SERVICES
SPECIAL SERVICES A partial listing of the most common high end treatments and special processes you can order for your COMP Cams® camshaft. Additional services are available; contact us for any special needs.
CAMSHAFT SURFACE PREPARATIONS
SPECIAL OPERATIONS
NITRIDING PART #1-111-1
REPLACEMENT OF THE CAMSHAFT DOWEL PIN PART #1-120-1
This is the most effective process for extending the life of a high performance flat tappet camshaft. Nitriding increases the hardness of the camshaft surface metal by physically injecting nitrogen "needles" into the surface of the lobes and journals to increase their resistance to wear.
CAMSHAFT MICROPOLISHING PART #1-114-1 This procedure removes microscopic imperfections in the surface of the metal. Micropolishing can further increase the durability of the camshaft and can be performed to only the camshaft lobes or all wear surfaces.
XTREME SURFACE FINISH ENHANCEMENT PART #1-137-1 Our highest-quality finishing process involving considerably more polishing than any other procedure. This is most commonly used in steel-onsteel contact valve train situations, such as high end circle track flat tappet camshafts where billet materials have repeated contact in extremely high RPM environments.
PRECISION CAMSHAFT MEASUREMENT BASIC CAMSHAFT PROFILING PART #1-126-1 Performed on two lobes of any camshaft, the component is measured to determine its lift, duration and lobe centerline specifications.
ADCOLE CAMSHAFT PROFILING PART #1-125-1 Our highest precision camshaft measuring device, the Adcole, checks all 16 camshaft lobes to determine that the cam meets all specifications requested by the customer. The Adcole measures camshaft specifications to 0.00001 of an inch.
This is a process which repairs camshafts when the current dowel pin has either been sheared off or damaged in some manner. The old dowel pin (or remaining part) is removed by machining and a new dowel pin is inserted.
INSTALLATION OF DUAL DOWEL PINS PART #1-121-1 For certain applications, dual dowel pins can be installed to further ensure that the camshaft and timing gear connection are secure. This is most commonly done with early model Ford V8s and classic Chrysler Hemi engines. The timing gear can also be machined to adapt to this new configuration.
DRILLING & TAPPING CAMSHAFT NOSE PART #1-136-1 A process performed to convert a single-bolt timing gear to three-bolt.
MACHINING A REAR CAMSHAFT JOURNAL GROOVE PART #1-119-1 A process commonly performed on 1965-66 Big Block 396c.i. Chevrolet engines, which features oiling systems that require a groove be cut into the rear journal of the camshaft. This was a two-year only condition, not required in all 1967 and newer Big Block Chevrolet engines.
MACHINING OF THE REAR PUMP DRIVE PART #1-116-1 Allows sprint car-style engines to run the fuel pump from the rear of the camshaft rather than traditional placements.
SIDE CUTTING OF CAMSHAFT LOBES PART #1-127-1 A process often requested that helps to keep the lifters from making contact with adjacent lobes when the engine’s lifter bores have been enlarged.
SLEEVING OF THE CAMSHAFT JOURNAL PART #1-132-1 Most popular with Ford Windsor engine roller bearing camshaft applications, a sleeve is placed around the standard rear journal to increase the size of the journal, making it compatible with rear roller bearing usage.
PRO PLASMA NITRIDER
FUEL PUMP LOBE REGRINDING PART #1-147-1 A refinishing process used to clean up a fuel pump lobe which may have been damaged or is showing excessive wear.
CHAMFER/EDGE BREAK PART #1-122-1 Common in NASCAR and other professional series, this process lightly chamfers the lobe surface edges on each side. This edge break minimizes corner stress concentration, resulting in improved endurance whenever follower contact runs close to the side of the lobe. Highly recommended in any application with narrow lobes.
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CORE DESCRIPTION
FLAT TAPPET CAM CORES (HYDRAULIC OR SOLID) 10-000-5 AMC 68-000-5 AMC 114-000-5 AMC 63-000-5 BUICK 69-000-5 BUICK 75-000-5 BUICK 90-000-5 BUICK 91-000-5 BUICK 92-000-5 BUICK 96-000-5 BUICK 94-000-5 CADILLAC 11-000-5 CHEVROLET 11-000-5RR CHEVROLET 12-000-5 CHEVROLET 15-000-5 CHEVROLET 16-000-5 CHEVROLET 18-000-5 CHEVROLET 48-000-5 CHEVROLET 60-000-5 CHEVROLET 61-000-5 CHEVROLET 62-000-5 CHEVROLET 77-000-5 CHEVROLET 148-000-5 CHEVROLET 20-000-5 CHRYSLER 21-000-5 CHRYSLER 23-000-5 CHRYSLER 24-000-5 CHRYSLER 26-000-5 CHRYSLER 64-000-5 CHRYSLER 163-000-5 CHRYSLER 31-000-5 FORD 32-000-5 FORD 33-000-5 FORD 34-000-5 FORD 35-000-5 FORD 35-000-5RR FORD 36-000-5 FORD 37-000-5 FORD 38-000-5 FORD 41-000-7 FORD 44-000-5 FORD 65-000-5 FORD 66-000-5 FORD 81-000-5 HOLDEN 82-000-5 HOLDEN 83-000-5 INTERNATIONAL 42-000-5 OLDSMOBILE 14-000-5 PONTIAC 51-000-5 PONTIAC 52-000-5 PONTIAC 73-000-5 VOLKSWAGEN
ENGINE
290-401 V8 (1966-91) 199-258 L6 (1964-95) 2.5L 198-225 V6 Odd Fire (1962-67) 3.0L-4.1L V6 (1978-87) Buick V6 215 Aluminum V8 364-401-425 V8 350 V8 (1968-80) 400-430-455 V8 (1967-76) 368-425-472-500 V8 396-454 V8 (1967-96) 396-454 V8 Reverse Rotation (Marine Applications) 262-400 V8 (1957-98) 200-229 V6 (1978-84) 2.8L, 3.1L and 3.4L (1980-95) 4.3L V6 (1983-97) 348-409 V8 (1958-65) 235 L6 Blue Flame (1952-62) 195-250 L6 (1962-85) 292 L6 (1963-90) Chevette 1400cc (1976-77)/1600cc (1976-87) 1994-01 2.2L Chevy 4 Cyl. 273-360 V8 (1968-99) 383-440 V8 Single-Bolt (1958-78) 383-440 V8 Three-Bolt (1958-78) 426 Hemi V8 (1966-71) 392 Hemi V8 225 L6 (1960-85) 1999-2001 Chrysler/Jeep 4.0 6 Cyl. 289-302 V8 (1962-99) 351C, 351M-400M V8 (1970-82) 352-428 V8 FE (1963-95) 429-460 V8 (1968-99) 302 HO (1985-95), 351W V8 (1969-95) 351W Reverse Rotation (Marine Applications) 2600, 2800 V6 272-292-312V8 Y-Block (1955-62) 2800 V6 (1983-85) Flathead V8 (1949-53) 3.8L (1984-87) Only 144-250 (1960-83) 240-300 L6 (1965-95) 6 Cyl. Flat Tappet 186 252-308 V8 (1970-88) 304-392 V8 (1970-78) 260-455 V8 91967-84) 151 L4 (1977-78) 265-455 V8 (1955-81) 151 L4 Iron Duke (1978-89) 1200, 1600 4 Cyl.
Continued on page 6
CAM CORES
CORE #
CAM CORES
CAM CORES
CAM CORES CORE #
CORE DESCRIPTION
SPECIAL FLAT TAPPET CAM CORES 12-000-7A CHEVROLET 20-000-7A CHRYSLER 21-000-7 CHRYSLER 32-000-7 FORD 35-000-7A FORD 41-000-7 FORD
ENGINE
262-400 V8 Special Pro Core "R" Block W/ 48° Lifter Bore 383-440 V8 Single-Bolt (1958-78) 351C, 351M-400M V8 (1970-82) SVO V8 Flathead V8
STREET ROLLER CAM CORES (HYDRAULIC OR SOLID ROLLER) (Special Material − Works W/ Most Std Dist. Gears) 69-000-8 BUICK 3.0L-4.1L V6 (1978-87) 01-000-8 CHEVROLET 454-502 Generation VI Big Block 07-000-8 CHEVROLET LT1 Engine (1992-98) 08-000-8 CHEVROLET 262-400 V8 W/ Roller Cam (1987-98) 09-000-8 CHEVROLET 4.3L V6 W/ Roller Cam (1987-98) 11-000-8 CHEVROLET 396-454 V8 (1967-96) 12-000-8 CHEVROLET 262-400 V8 (1957-98) 18-000-8 CHEVROLET 4.3L V6 (1985-99) 56-000-8 CHEVROLET 4.3L V6 (1992-99) W/ Balance Shaft 148-000-8 CHEVROLET 1994-01 2.2L Chevy 4CYL 97-000-10 CHRYSLER V10 Viper 98-000-10 CHRYSLER V10 Truck 111-000-10 CHRYSLER 2003 & Up Viper Three-Bolt 112-000-11 CHRYSLER 5.7 & 6.1L Hemi V8 149-000-8 CHRYSLER 238 CID 3.9L V6 31-000-8 FORD 289-302 V8 (1962-99) 32-000-8 FORD 351C, 351M-400M V8 (1970-82) 35-000-8 FORD 302 HO (1985-95), 351W V8 (1969-99) RACE ROLLER CAM CORES − STEEL BILLET 10-000-13 AMC 93-000-9 BUICK 94-000-10 CADILAAC 02-000-9 CHEVROLET 08-000-9 CHEVROLET 07-000-9 CHEVROLET CHEVROLET 11-000-9A 01-000-9 CHEVROLET 12-000-9A CHEVROLET 03-000-9A CHEVROLET 04-000-10A CHEVROLET 14-000-9 CHEVROLET 15-000-9 CHEVROLET 17-000-9 CHEVROLET 19-000-9 CHEVROLET 28-000-9 CHEVROLET 29-000-9 CHEVROLET 76-000-9 GM 54-000-11 GM LS 146-000-13 GM LS
A. Different journal sizes available - pricing may increase
390-401 V8 (1966-79) Stage II Even Fire V8 200-229 V6 Odd Fire W/ Splayed Valve Head 262-400 V8 (1987-98) LT1 Engine (1992-98) 396-454 V8 (1967-96) 454-502 Generation VI Big Block 262-400 V8 (1957-98) Standard Chevrolet Block W/ SB2 Heads SB2 Block W/ SB2 Heads 153 L4 (1962-1972) 220-229 V6 Even Fire V6 Odd Fire Race 262-400 V8 W/ Splayed Valve or Buick Head Gaerte L4 Gaerte L4 W/ Splayed Valve Head 3800/3.8L V6 (1996-Present) LS1 Engine (1997-Present) Chevy Gen IV, LS2
Continued on page 7
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CORE DESCRIPTION
ENGINE
RACE ROLLER CAM CORES − STEEL BILLET continued 156-000-13 GM LS 189-000-13 GM LS 224-000-13 GM LS 624-000-15 GM LS 646-000-13 GM LS 656-000-13 GM LS 689-000-13 GM LS 46-000-9 GM 117-000-9 GM 109-000-10 GM 116-000-12 GM 132-000-12 GM 142-000-12 GM 20-000-9A CHRYSLER 23-000-9 CHRYSLER 24-000-9A CHRYSLER 26-000-9 CHRYSLER 201-000-17 CHRYSLER 115-000-10 CHRYSLER 195-000-12 CHRYSLER 31-000-9 FORD 32-000-9 FORD 33-000-9 FORD 34-000-9 FORD FORD 35-000-9A 39-000-9 FORD 40-000-9 FORD 49-000-8 FORD 118-000-9 FORD 82-000-9 HOLDEN 282-000-9 HOLDEN 42-000-9 OLDSMOBILE 51-000-11 PONTIAC 52-000-9 PONTIAC 120-000-12 STERLING 208-000-15 GM
Gen IV LS2 W/ Cam Phaser LY6 Gen IV 2014 GM Gen V LT1 2014 GM LT1 AFM Chevy Gen IV, LS2 AFM Gen IV LS2 W/ Cam Phaser & AFM LY6 Gen IV AFM 8.1L V8 6.5L Diesel R99/R03 DRCE3 Pro Stock Duramax 6.6L Diesel Holden V8 Special Spacing 273-360 V8 (1968-99) 383-440 V8 Three-Bolt (1958-78) 426 Hemi V8 (1966-71) 392 Hemi V8 VVT Hemi 5.7 & 6.4 9 Bearing Hemi Pro Stock Gen 1V Viper 8.4L 289-302 V8 (1962-95) 351C, 351M-400M V8 (1970-82) 352-428 V8 FE (1963-76) 429-460 V8 (1968-99) 302 HO (1985-95), 351W V8 (1969-99) SVO V6 Odd Fire SVO V6 Even Fire 4.0L V6 (1990-97) 7.3L Ford Power Stroke Diesel Core 252-308 V8 (1970-88) Holden V8 (1986-Present) 260-455 V8 (1965-90) 265-455 V8 (1955-81) 151 L4 Iron Duke Sterling V12 SBC Sprint Car, Lightened Journals 8620
OHC DIRECT ACTING CAM CORES (HYDRAULIC OR SOLID) 10800E FORD 10800I FORD 121-000-8E FORD 121-000-8I FORD 53-000-5I OLDSMOBILE 53-000-5E OLDSMOBILE 74-000-5 TOYOTA 168-000-15E TOYOTA 168-000-15I TOYOTA 85-000-5 VOLKSWAGEN
2.0L Zetec Exhaust 2.0L Zetec Intake Ford Duratech 2.3L DOHC Exhaust Ford Duratech 2.3L DOHC Intake 2.3 Quad 4 Intake 2.3 Quad 4 Exhaust 2TC-3TC L4 OHV 1588-1700cc (1970-82) Toyota 2JZ-GTE DOHC Toyota 2JZ-GTE DOHC 1457, 1788 SOHC 4 Cyl. (1974-89)
A. Different journal sizes available - pricing may increase
Continued on page 8
CAM CORES
CORE #
CAM CORES
CAM CORES
CAM CORES CORE #
CORE DESCRIPTION
ENGINE
OHC SLIDING FINGER CAM CORES (HYDRAULIC OR SOLID) 57-000-9E HONDA 57-000-9I HONDA 59000 HONDA 105000 HONDA 70-000-0 FORD 70-000-6 FORD 71-000-5 FORD 72-000-5 FORD 95-000-5 MITSUBISHI 222-000-5 MITSUBISHI 58-000-9E NISSAN 58-000-9I NISSAN 79-000-5 NISSAN 80-000-5 NISSAN 84-000-5 NISSAN 88-000-5 NISSAN 87-000-5 TOYOTA
DOHC B16A/B18C DOHC B16A/B18C D16Z6 SOHC V-TEC D16Y8 SOHC V-TEC 2000, 2300 OHC L4 (1983-87) 2000, 2300 OHC L4 (1983-87) 1600 L4 OHC (1965-85) 2000 L4 OHC (1970-77) 3-Bearing Journal 2000, 2600 L4 RWD & FWD (1979-87) 1983-1990 4CYL, C222-4 SR20-DE SR20-DE 1600, 1800 L4 (1969-84) 6 Cyl. SOHC 2200-2800 (1970-84) Gun Drilled NAP Z L4 (1981-89) 20R, 22R L4 (1975-89)
OHC ROLLER TAPPET CAM CORES (HYDRAULIC OR SOLID) 22-000-5 CHRYSLER 107-000-8 CHRYSLER 135-000-8E CHRYSLER 135-000-8I CHRYSLER 217-000-15 CHRYSLER 113-000-9I GM 113-000-9E GM 200-000-5E GM 200-000-5I GM 138-000-9L FORD 138-000-9R FORD 102-000-9R FORD 102-000-9L FORD 106-000-9LE FORD 106-000-9LI FORD 106-000-9RE FORD 106-000-9RI FORD 127-000-9L FORD 127-000-9R FORD 140-000-9L FORD 140-000-9R FORD 191-000-9LE FORD 191-000-9LI FORD 191-000-9RE FORD 191-000-9RI FORD 243-000-11LE FORD 243-000-11LI FORD 243-000-11RE FORD 243-000-11RI FORD 269-000-9L FORD 269-000-9R FORD 101-000-8E MITSUBISHI 101-000-8I MITSUBISHI
2.2L, 2.5L L4 OHC (1981-93) Neon SOHC 2.0L (1995-01) Neon "Y" Engine Code Exhaust Neon "Y" Engine Code Intake Mopar Midget, Stanton New Head (Tool Steel) Ecotech 2.2L DOHC Intake Ecotech 2.2L DOHC Exhaust ECOTEC Equal Length ECOTEC Equal Length 427 SOHC Left Hand 427 SOHC Right Hand 4.6L SOHC Right Side Cam Set 4.6L SOHC Left Side Cam Set 4.6L & 5.4L DOHC Left Exhaust 4.6L & 5.4L DOHC Left Intake 4.6L & 5.4L DOHC Right Exhaust 4.6L & 5.4L DOHC Right Intake 4.6L 3 Valve Left 4.6L 3 Valve Right V10 DOHC LEFT V10 DOHC RIGHT 5.0 2011-14 Coyote 5.0 2011-14 Coyote 5.0 2011-14 Coyote 5.0 2011-14 Coyote 5.0 2015 & Up Coyote 5.0 2015 & Up Coyote 5.0 2015 & Up Coyote 5.0 2015 & Up Coyote Modular 2V, TFS Heads, Left Modular 2V, TFS Heads, Right Intake Cam Set for 4G63 Exhaust Cam Set for 4G63
Continued on page 9
COMPCAMS.COM CAM HELP® 1.800.999.0853
CORE DESCRIPTION
ENGINE
OHC ROLLER TAPPET CAM CORES (HYDRAULIC OR SOLID) continued 119-000-8E MITSUBISHI 4G63 Evolution VIII Exhaust (2003 & Up) 119-000-8I MITSUBISHI 4G63 Evolution VII Intake (2003 & Up) 145-000-8E MITSUBISHI 2006 MIT. 2.0L EVO IX MIVEC INT 145-000-8I MITSUBISHI 2006 MIT. 2.0L EVO IX MIVEC EXH RACE ROLLER CAM CORES − STEEL BILLET (ROUND) 10-000-0 AMC 123-000-0 ARIAS 122-000-0 BMW 67-000-0 BUICK 92-000-0 BUICK 93-000-0 BUICK 96-000-0 BUICK 61-000-0 CHEVROLET 03-000-0 CHEVROLET 07-000-0 CHEVROLET 11-000-0 CHEVROLET 12-000-0 CHEVROLET 54-000-0 CHEVROLET 14-000-0 CHEVROLET 15-000-0 CHEVROLET 129-000-0 CHEVROLET 20-000-0 CHRYSLER 21-000-0 CHRYSLER 24-000-0 CHRYSLER 26-000-0 CHRYSLER 134-000-0 CHRYSLER 72-000-0 FORD 66-000-0 FORD 31-000-0 FORD 05-000-0 FORD 32-000-0 FORD 34-000-0 FORD 30-000-0 HARLEY DAVIDSON 42-000-0 OLDSMOBILE 51-000-0 PONTIAC 52-000-0 PONTIAC RACE ROLLER CAM CORES − SPECIAL 8620 147-000-15 GM 166-000-15 GM 172-000-15 GM 175-000-15 GM 177-000-16 GM 196-000-15 GM 209-000-15 GM 212-000-15 GM 178-000-15 GM
390-401 V8 (1966-79) Arias 10 Round Mini Cooper 231 V6 Odd Fire (1975-77) 350 V8 BV6 Stage II 400-430-455 V8 (1967-76) 194-230-250-292-L6 (1962-84) Standard Chevrolet Block W/ SB2 Heads LT1 Engine (1992-98) 396-454 V8 (1967-96) 262-400 V8 (1957-98) LS1 Engine (1997-99) 153 L4 (1962-72) 200-229 V6 Even Fire 3.4L V6 (2001 & Up) 273-360 V8 (1968-99) 383-440 V8 Single-Bolt (1958-78) 426 Hemi V8 (1966-71) Donovan Block 70MM Hemi Pro Stock 2000 L4 OHC (1970-77) 240-300 L6 (1965-Present) 289-302 V8 (1962-95) and SVO V8 SVO V8 W/ Mirror Image Heads 351C, 351M-400M V8 (1970-82) 429-460 Vi (1968-99) 80" Evolution 260-455 V8 (1965-90) 265-455 Vi (1955-81) 151 L4 Iron Duke 5.2 Bore Spacing GM DRCE2 9 Bearing 4 Cyl. CS 4500 Bore Spacing Brodix Block BBC 5" Bore C&N Blocks BBC 70MM 5300 Bore Spacing N Head/A.J. 45/60 SBC Mid Deck Block, Same As C183-12 SBC 4.5" Chuck Nuytten Block-Devito BBC 5" Brodix Block CS-LS-WP Motown SBC
Continued on page 10
CAM CORES
CORE #
CAM CORES
CAM CORES
CAM CORES CORE #
CORE DESCRIPTION
RACE ROLLER CAM CORES − TOOL STEEL BILLET 155-000-15 ARIAS 55-000-16 CHRYSLER 157-000-16 CHRYSLER 217-000-15 CHRYSLER 226-000-17 CHRYSLER 04-000-16A GM 11-000-15 GM 54-000-15 GM 224-000-15 GM 153-000-17 GM 154-000-16 GM 164-000-17 GM 170-000-17 GM 208-000-17 GM 35-000-16 FORD 35-000-17 FORD 126-000-16 FORD 181-000-16 FORD 236-000-17 FORD 266-000-17 FORD 110-000-16 TOYOTA 235-000-17 TOYOTA 132-000-17 GM 144-000-16 GM
A. Different journal sizes available - pricing may increase
ENGINE
8.3 Aries R5 Block/P7 Head − Steel Dodge R6/P8 Tool Steel Semi FT Mopar Midget, Stanton New Head SB Hemi SB2 Block/Heads − Steel BBC Tool Steel LS1 Tool Steel 3 Bolt 2014+ GM Gen V & LT1 Pro Stock DRCE2 9-Bearing Round Lobe Nimar Pro Stock BBC Dart X Block 5300 BS Chevrolet Dart 53 SBC Sprint Car Core, Lightened Journals SVO V8 − Tool Steel Windsor V8 - Tool Steel Ford Hemi Pro Stock, Not Gundrilled FORD 70MM Pro Stock 9 Bearing BB 4/7 FO 60mm SBF D3 Head 41°-45° Bank 7.3 Powerstroke Diesel (1997-2002) TRD9 5160 Semi 6 BRNG Phase II Tool Steel Duramax 6.6L Diesel R07-2 GM Race NASCAR
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC FLAT TAPPET
These lobes are to be used in applications where torque, mileage and vacuum are primary considerations. High Energy™ Hydraulics can be used as intake or exhaust lobes. They are simple street performance stock improvement lobes. This group must use a minimum tappet diameter of .842" (Chevrolet) or larger. CAMSHAFT TYPE
High Energy™ Rated Duration @ .006" Tappet Lift .842" Min. Dia. MI 25.7 (12.3/13.4)
LOBE #
RATED DURATION
5224 5225 5223 5226 5206 5200 5211 5205 5207 5212 5232 5222 5215
240-4 244-1 244-2 248-2 252-5 252-4 260-7 260-8 260-9 268-4 268-5 268-6 268-9
DURATION IN DEGREES @ .050
@ .200
192 196 196 200 206 206 212 212 212 222 218 218 218
96 97 101 102 109 113 119 117 122 130 124 128 128
LOBE LIFT
.2600 .2567 .2666 .2600 .2706 .2835 .2933 .2795 .2960 .3090 .2853 .3026 .2960
TAPPET LIFT @ TDC 106°
110°
.024 .028 .028 .034 .041 .041 .049 .049 .050 .064 .059 .060 .059
.017 .020 .020 .025 .031 .031 .038 .038 .039 .052 .047 .048 .047
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.390 .385 .400 .390 .406 .425 .440 .419 .444 .464 .428 .454 .444
.416 .411 .427 .416 .433 .454 .469 .447 .474 .494 .456 .484 .474
.442 .436 .453 .442 .460 .482 .499 .475 .503 .525 .485 .514 .503
MAGNUM HYDRAULICS Magnum Hydraulics are to be used in high performance applications with a minimum tappet diameter of .842" (Chevrolet) or larger. These lobes are more aggressive in their design characteristics and can be used as intake or exhaust lobes. They are a big brother to the High Energy™ family and are frequently used by the budget minded Saturday Night racer. They also provide a very "throaty" sound. CAMSHAFT TYPE
LOBE #
RATED DURATION
Magnum Rated Duration @ .006" Tappet Lift .842" Min. Dia.
5201 5202 5239 5213 5216 5203 5240 5241 5208 5229 5214 5204 5209 5210 5217
270-4 270-5 276-3 276-4 280-3 280-4 280-9 284-3 286-3 288-9 292-2 292-3 296-3 305-3 305-4
DURATION IN DEGREES @ .050
@ .200
224 224 228 226 230 230 232 236 236 237 244 244 246 253 253
135 132 140 136 137 140 142 146 148 148 153 151 158 163 162
LOBE LIFT
.3130 .3000 .3160 .3090 .3063 .3200 .3220 .3160 .3270 .3220 .3340 .3235 .3400 .3500 .3380
TAPPET LIFT @ TDC 106°
110°
.069 .068 .077 .072 .077 .079 .080 .091 .089 .090 .101 .101 .106 .118 .118
.057 .056 .064 .060 .064 .066 .067 .078 .075 .076 .087 .087 .092 .104 .104
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.470 .450 .474 .464 .459 .480 .483 .474 .491 .483 .501 .485 .510 .525 .507
.501 .480 .506 .494 .490 .512 .515 .506 .523 .515 .534 .518 .544 .560 .541
.532 .510 .537 .525 .521 .544 .547 .537 .556 .547 .568 .550 .578 .595 .575
HYDRAULIC FLAT TAPPET
HIGH ENERGY™ HYDRAULICS
HYDRAULIC FLAT TAPPET
HYDRAULIC FLAT TAPPET
DUAL ENERGY™ HYDRAULICS
Designed for the Dual Energy Cam™ Series, these lobes are good for every day driving where a broad torque curve is necessary. Very easy on related components. Designed as intake and exhaust lobes but could be used either way. Minimum tappet diameter of .842" is necessary. These lobes produce good power for a daily driver or a weekend toy used as an occasional bracket race car. CAMSHAFT TYPE
LOBE #
RATED DURATION
Dual Energy™ Rated Duration @ .006" Tappet Lift .842" Min. Dia.
5110A 5146 5310 5128 5312 5128 5166 5120A 5311 5000 5126A 5326 5163 5130 5127 5315 5006 5129 5136A 5327 5002 5135
255 255 254 265 265 273 265 261 261 263 275 275 275 275 269 272 275 276 277 283 283 284
DURATION IN DEGREES @ .050
@ .200
203 203 204 211 211 211 211 212 213 216 219 219 219 219 221 221 223 227 229 229 233 235
110 110 109 117 112 117 117 121 120 123 125 123 125 125 129 124 128 134 137 136 146 139
LOBE LIFT
.281 .281 .271 .295 .280 .295 .295 .301 .286 .292 .308 .298 .308 .308 .310 .298 .304 .308 .321 .313 .320 .321
TAPPET LIFT @ TDC 106°
110°
.036 .036 .037 .049 .049 .049 .049 .049 .046 .052 .057 .057 .057 .057 .062 .062 .057 .074 .074 .074 .074 .082
.028 .028 .027 .039 .039 .039 .039 .039 .039 .042 .047 .048 .047 .047 .051 .051 .050 .062 .062 .062 .070 .070
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.422 .422 .407 .443 .420 .443 .443 .452 .429 .438 .462 .447 .462 .462 .465 .447 .456 .462 .482 .470 .480 .482
.450 .450 .434 .472 .448 .472 .472 .482 .458 .467 .493 .477 .493 .493 .496 .477 .486 .493 .514 .501 .512 .514
.478 .478 .461 .502 .476 .502 .502 .512 .486 .496 .524 .507 .524 .524 .527 .507 .517 .524 .546 .532 .544 .546
THUMPR™ HYDRAULICS The Thumpr™ lobe profiles are designed to optimize the character and sound, while providing excellent stability and a very wide power range in hydraulic flat tappet applications. Specific profiles are developed uniquely for the intake and exhaust. CAMSHAFT TYPE
LOBE #
RATED DURATION
Thumpr™ Int. Rated Duration @ .006" Tappet Lift .842" Min. Dia.
5038 5039 5040 5042 5044
Thumpr™ Int. CB Rated Duration @ .006" Tappet Lift .842" Min. Dia. Thumpr™ Int. FW Rated Duration @ .006" Tappet Lift .875" Min. Dia.
DURATION IN DEGREES @ .050
@ .200
271 275 279 287 295
219 223 227 235 243
130 134 138 146 154
5020 5022 5024
279 287 295
227 235 243
5520 5522 5524
279 287 295
227 235 243
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.312 .316 .319 .326 .333
.061 .067 .074 .088 .101
.049 .055 .061 .074 .088
.468 .474 .479 .489 .500
.499 .506 .510 .522 .533
.530 .537 .542 .554 .566
132 141 149
.293 .300 .307
.073 .086 .100
.060 .073 .086
.440 .450 .461
.469 .480 .491
.498 .510 .522
137 145 153
.306 .313 .320
.073 .087 .101
.060 .073 .087
.459 .470 .480
.490 .501 .512
.520 .532 .544
Continued on page 13
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC FLAT TAPPET
CAMSHAFT TYPE
LOBE #
RATED DURATION
Thumpr™ Int. CRS Rated Duration @ .006" Tappet Lift .904" Min. Dia.
5820 5822 5824
Thumpr™ Exh. Rated Duration @ .006" Tappet Lift .842" Min. Dia.
DURATION IN DEGREES @ .050
@ .200
279 287 295
227 235 243
142 150 158
5055 5057 5059
297 305 313
241 249 257
Thumpr™ Exh. CB Rated Duration @ .006" Tappet Lift .842" Min. Dia.
5031 5033 5035
297 305 313
Thumpr™ Exh. FW Rated Duration @ .006" Tappet Lift .875" Min. Dia.
5531 5533 5535
Thumpr™ Exh. CRS Rated Duration @ .006" Tappet Lift .904" Min. Dia.
5831 5833 5835
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.324 .331 .338
.075 .089 .103
.062 .075 .089
.486 .497 .507
.518 .530 .541
.551 .563 .575
148 156 164
.310 .317 .324
.094 .107 .120
.082 .094 .107
.465 .476 .486
.496 .507 .518
.527 .539 .551
241 249 257
140 148 157
.284 .291 .298
.093 .107 .120
.080 .093 .107
.426 .437 .447
.454 .466 .477
.483 .495 .507
297 305 313
241 249 257
143 152 160
.297 .304 .311
.093 .107 .121
.080 .094 .107
.446 .456 .467
.475 .486 .498
.505 .517 .529
297 305 313
241 249 257
149 157 165
.315 .322 .329
.094 .109 .123
.081 .094 .108
.473 .483 .494
.504 .515 .526
.536 .547 .559
NEW NOSTALGIA PLUS™ HYDRAULICS Designed to mimic the sound of the great engines of the past while improving performance by applying today’s design techniques, these profiles are used in our Nostalgia Plus™ Series to capture the essence of the factory muscle cars of the 60s and 70s. These profiles are slightly slower off the seat than the Xtreme Energy™ profiles but have excellent area under the curve for outstanding power. CAMSHAFT TYPE
LOBE #
RATED DURATION
New Nostalgia Plus™ Rated Duration @ .006" Tappet Lift .842" Min. Dia.
5066 5067 5068 5069 5070 5071
258 265 276 283 286 293
DURATION IN DEGREES @ .050
@ .200
211 218 229 236 239 246
120 124 140 147 151 157
LOBE LIFT
.284 .280 .312 .308 .322 .318
TAPPET LIFT @ TDC 106°
110°
.048 .057 .078 .088 .095 .105
.036 .045 .064 .074 .081 .091
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.426 .420 .468 .462 .483 .477
.454 .448 .499 .493 .515 .509
.483 .476 .530 .524 .547 .541
RACE HYDRAULICS These are the largest hydraulic designs COMP Cams® offers. With a minimum tappet diameter of .842" or larger needed, these designs are intended for all out racing only. The larger lobes (268°, 270°, 276° @ .050" duration) were designed with large cubic inch motors in mind in a high RPM environment. These lobes have smooth ramps, making it easier for the spring to control the valve. CAMSHAFT TYPE
Rated Duration @ .006" Tappet Lift .842" Min. Dia. MI 25.8 (12.9/12.9)
LOBE #
RATED DURATION
5195 5221 5196 5197 5198 5199
312-5 312-6 320-5 320-9 320-10 328-8
DURATION IN DEGREES @ .050
@ .200
260 260 268 268 270 276
169 171 178 175 180 185
LOBE LIFT
.3600 .3530 .3600 .3530 .3675 .3675
TAPPET LIFT @ TDC 106°
110°
.128 .131 .143 .141 .147 .156
.114 .117 .129 .128 .133 .142
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.540 .530 .540 .530 .551 .551
.576 .565 .576 .565 .588 .588
.612 .600 .612 .600 .625 .625
HYDRAULIC FLAT TAPPET
THUMPR™ HYDRAULICS Continued
HYDRAULIC FLAT TAPPET
HYDRAULIC FLAT TAPPET
XTREME ENERGY™ HYDRAULICS Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine vacuum and enhances throttle response. Special intake closing ramps close the valve sooner, providing more cylinder pressure and torque without resulting in excessive valve train noise. Faster ramps achieve maximum velocity sooner, increasing the area under the lift curve and providing maximum horsepower. Smoother exhaust designs allow for a more effective purge of spent gasses from the combustion chamber to further increase horsepower. CAMSHAFT TYPE
Xtreme Energy™ Int. Rated Duration @ .006" Tappet Lift .842" Min. Dia. MI 22.9 (11.1/11.8)
Xtreme Energy™ Exh. Rated Duration @ .006" Tappet Lift .842" Min. Dia.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
5437 5440 5430 5441 5431 5442 5432 5443 5433 5444 5414 5445 5435 5446 5447 5418 5448 5438 5449 5439 5419
240 250 250 256 256 262 262 268 268 270 270 274 274 278 284 288 290 294 294 298 298
196 206 206 212 212 218 218 224 224 226 226 230 230 234 240 244 246 250 250 254 254
106 117 114 124 120 130 128 137 134 139 136 143 140 147 153 157 159 163 163 167 166
.275 .288 .277 .298 .283 .308 .297 .318 .303 .321 .303 .325 .303 .332 .338 .335 .344 .360 .346 .360 .338
.026 .041 .041 .050 .050 .060 .060 .070 .070 .073 .073 .080 .080 .087 .097 .104 .108 .115 .115 .122 .122
.018 .030 .030 .038 .038 .047 .047 .056 .056 .060 .060 .066 .066 .073 .084 .091 .094 .101 .101 .108 .108
.413 .432 .416 .447 .425 .462 .446 .477 .455 .482 .455 .488 .455 .498 .507 .503 .516 .540 .519 .540 .507
.440 .461 .443 .477 .453 .493 .475 .509 .485 .514 .485 .520 .485 .531 .541 .536 .550 .576 .554 .576 .541
.468 .490 .471 .507 .481 .524 .505 .541 .515 .546 .515 .553 .515 .564 .575 .570 .585 .612 .588 .612 .575
5207 5205 5230 5232 5212 5201 5202 5203 5216 5208 5238 5214 5209 5210 5231 5234 5233
260 260 268 268 268 270 270 280 280 286 286 292 296 305 308 316 316
212 212 218 218 222 224 224 230 230 236 236 244 246 253 256 264 264
121 117 128 124 130 133 132 140 138 144 143 154 154 160 165 170 173
.296 .280 .303 .285 .309 .313 .300 .320 .306 .327 .306 .334 .340 .350 .350 .285 .353
.050 .050 .059 .059 .064 .067 .068 .078 .078 .085 .086 .100 .101 .111 .120 .132 .133
.040 .040 .048 .047 .052 .056 .056 .065 .066 .072 .073 .087 .088 .098 .106 .118 .120
.444 .420 .455 .428 .464 .470 .450 .480 .459 .491 .459 .501 .510 .525 .525 .428 .530
.474 .448 .485 .456 .494 .501 .480 .512 .490 .523 .490 .534 .544 .560 .560 .456 .565
.503 .476 .515 .485 .525 .532 .510 .544 .520 .556 .520 .568 .578 .595 .595 .485 .600
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC FLAT TAPPET
The Xtreme Energy XFI™ Series is designed for use with modern induction systems, heads, springs and rockers. The XFI™ intake lobes have more lift than the base Xtreme series, and the XFI™ exhaust lobes have more area under the curve, for better exhaust flow, than the base exhaust series. These are the first hydraulic flat tappet profiles designed for use with COMP Cams® Beehive™ Valve Springs, such as the #26915, #26918 and #26120. The combination of these profiles, the Beehive™ Springs, and our Ultra Pro Magnum™ Rocker Arms in higher ratios, makes for the most revolutionary improvement in hydraulic flat tappet design to date by bringing the latest race winning technology to the street. CAMSHAFT TYPE
Xtreme XFI™ Int. Rated Duration @ .006" Tappet Lift .842" Min. Dia. MI 23.1 (11.2/11.9)
Xtreme XFI™ Exh. Rated Duration @ .006" Tappet Lift .842" Min. Dia. MI 25.0 (12.1/12.9)
LOBE #
RATED DURATION
5082 5083 5084 5085 5086 5087 5088 5089 5090 5074 5075 5076 5101 5103 5105 5107 5109
DURATION IN DEGREES @ .050
@ .200
252 256 260 262 268 274 280 286 292 260 264 268
208 212 216 218 224 230 236 242 248 216 220 224
121 125 129 131 138 143 150 156 162 126 129 132
266 272 280 290 302
217 223 231 241 253
127 134 143 154 166
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.298 .305 .312 .315 .325 .336 .345 .355 .365 .290 .290 .290
.044 .050 .056 .060 .070 .081 .091 .102 .112 .056 .063 .069
.032 .038 .044 .047 .057 .067 .077 .088 .098 .043 .049 .056
.447 .458 .468 .473 .488 .504 .518 .533 .548 .435 .435 .435
.477 .488 .499 .504 .520 .538 .552 .568 .584 .464 .464 .464
.507 .519 .530 .536 .553 .571 .587 .604 .621 .493 .493 .493
.295 .308 .322 .342 .362
.059 .068 .082 .099 .120
.047 .056 .068 .085 .106
.443 .462 .483 .513 .543
.472 .493 .515 .547 .579
.502 .524 .547 .581 .615
PURPLE PLUS HYDRAULICS (.904" MIN. TAPPET) These use the same ramps as the New Nostalgia Plus™ lobes but have more velocity for use with Chrysler/Mopar .904" minimum tappet diameters. CAMSHAFT TYPE
Purple Plus Rated Duration @ .006" Tappet Lift .904" Min. Dia. MI 24.0 (11.6/12.4)
LOBE #
RATED DURATION
6882 6883 6884 6885 6886 6887
280 287 284 291 292 299
DURATION IN DEGREES @ .050
@ .200
233 240 239 246 247 254
148 153 154 159 163 169
LOBE LIFT
.316 .316 .323 .323 .339 .339
TAPPET LIFT @ TDC 106°
110°
.086 .096 .097 .107 .111 .123
.071 .082 .082 .092 .097 .108
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.474 .474 .485 .485 .509 .509
.506 .506 .517 .517 .542 .542
.537 .537 .549 .549 .576 .576
HYDRAULIC FLAT TAPPET
XTREME ENERGY XFI™ HYDRAULICS
HYDRAULIC FLAT TAPPET
HYDRAULIC FLAT TAPPET
XTREME MOPAR HYDRAULICS (.904" MIN. TAPPET) Xtreme Mopar Hydraulics are optimized for use with .904" minimum tappet diameters. The additional velocity allowed with the Chrysler/Mopar .904" tappet results in more area and lift than any of our other comparable hydraulic designs. These are the best large tappet hydraulics ever. CAMSHAFT TYPE
Xtreme Mopar Int. Rated Duration @ .006" Tappet Lift .904" Min. Dia. MI 23.1 (11.2/11.9)
Xtreme Mopar Exh. Rated Duration @ .006" Tappet Lift .904" Min. Dia. MI 25.0 (12.1/12.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
5964 5962 5965 5960 5961 5966
275 279 285 289 295 295
231 235 241 245 251 251
149 153 159 163 169 169
.350 .356 .363 .356 .356 .376
.083 .089 .101 .109 .120 .120
.069 .075 .087 .094 .105 .105
.525 .534 .545 .534 .534 .564
.560 .570 .581 .570 .570 .602
.595 .605 .617 .605 .605 .639
5984 5985 5980 5981 5986
287 297 301 307 307
237 247 251 257 257
151 161 166 171 171
.350 .363 .360 .360 .376
.090 .107 .115 .126 .126
.076 .093 .101 .111 .111
.525 .545 .540 .540 .564
.560 .581 .576 .576 .602
.595 .617 .612 .612 .639
LOBE LIFT
XTREME 4X4 HYDRAULICS (.904" MIN. TAPPET) The Xtreme 4x4 for .904" are similar to the XE Mopar .904" designs but optimized for AMC I6 off-road applications for great torque, responsiveness and a wide power range. For use with .904" or larger OD hydraulic tappets and 1.948" or larger journal diameter. Slightly softer off the seat than the XFI .842" series but with greatly increased area for a given seat timing by taking advantage of the larger .904" tappet. Quiet, stable and great torque. Nitriding recommended, especially on shorter duration, for enhanced durability. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
Xtreme 4x4 .904 Rated Duration @ .006" Tappet Lift 1.948"+ Journal .904"+ Tappet OD MI 23.5 (11.3/12.2) Low Lift
5900 5901 5902 5903 5904
250 254 258 262 266
205 209 213 217 221
122 126 130 134 138
.305 .311 .317 .321 .325
.047 .052 .057 .062 .067
.036 .041 .046 .051 .056
.458 .467 .476 .482 .488
.488 .498 .507 .514 .520
.519 .529 .539 .546 .553
5852
258
213
117
.270
.052
.039
.405
.432
.459
LOBE LIFT
MPM STOCKER HYDRAULICS (.842" MIN. TAPPET) These are high RPM hydraulic flat tappets designed around a minimum tappet diameter of .842" or larger. Intended for all out racing only. CAMSHAFT TYPE
LOBE #
RATED DURATION
MPM Stocker Rated Duration @ .006" Tappet Lift .842" Min. Dia. MI 29.1 (13.8/15.3)
6622 6624 6626 6628
315 319 323 327
DURATION IN DEGREES @ .050
@ .200
260 264 268 272
167 171 174 178
LOBE LIFT
.324 .324 .324 .324
TAPPET LIFT @ TDC 106°
110°
.127 .134 .141 .147
.113 .120 .127 .134
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.486 .486 .486 .486
.518 .518 .518 .518
.551 .551 .551 .551
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC FLAT TAPPET
HYDRAULIC FLAT TAPPET
CRL STOCKER HYDRAULICS (.842" MIN. TAPPET)
These hydraulic flat tappet Stocker/Lift Rule profiles are quicker than the MPMs, while designed around a minimum tappet diameter of .842" or larger. These designs are intended for all out racing only. CAMSHAFT TYPE
CRL Stocker Rated Duration @ .006" Tappet Lift .842" Min. Dia. MI 29.3 (13.7/15.6)
LOBE #
RATED DURATION
6592 6593 6594 6575 6595 6596 6576 6577 6578
312 314 316 318 320 322 324 326 328
DURATION IN DEGREES @ .050
@ .200
258 260 262 264 266 268 270 272 274
168 170 172 173 175 177 179 181 183
LOBE LIFT
.325 .325 .325 .325 .325 .325 .325 .325 .325
TAPPET LIFT @ TDC 106°
110°
.128 .132 .135 .139 .143 .146 .150 .153 .156
.114 .117 .121 .125 .128 .132 .135 .139 .143
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.488 .488 .488 .488 .488 .488 .488 .488 .488
.520 .520 .520 .520 .520 .520 .520 .520 .520
.553 .553 .553 .553 .553 .553 .553 .553 .553
USI USX UPI UPX STOCKER HYDRAULICS These are new designs for high RPM stocker applications. CAMSHAFT TYPE
LOBE #
RATED DURATION
USI Rated Duration @ .020" Tappet Lift
5538
DURATION IN DEGREES @ .050
@ .200
294
262
166
5540
298
266
5544
301
5546
USI Rated Duration @ .020" Tappet Lift
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.345
.123
.110
.552
.587
.621
170
.345
.130
.116
.552
.587
.621
268
174
.365
.134
.121
.584
.621
.657
305
272
178
.365
.141
.128
.584
.621
.657
5840
298
266
157
.267
.125
.113
.401
.427
.454
USX Rated Duration @ .020" Tappet Lift
5846
305
272
166
.277
.136
.124
.416
.443
.471
UPI Rated Duration @ .020" Tappet Lift
5854
294
263
157
.267
.124
.111
.401
.427
.454
UPX Rated Duration @ .020" Tappet Lift
5862
300
269
164
.277
.135
.122
.416
.443
.471
USX Rated Duration @ .020" Tappet Lift
HYDRAULIC ROLLER
HYDRAULIC ROLLER
HIGH ENERGY™ & MAGNUM HYDRAULIC ROLLERS − LOW & HIGH LIFT The low lift profiles were designed for street and marine use. The low lift adds dependability and reliability for extended use applications. The high lift versions of the hydraulic rollers are designed for all out applications where high lift is desired because of cylinder head or engine modifications. They function well for street/strip. These lobes run well in big cubic inch marine engines. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
Hydraulic Roller Low Lift Rated Duration @ .006" Tappet Lift Low Lift Journal = S,B,F,R… MI 28.7 (13.8/14.9)
3100 3101 3102 3103 3104 3105 3106 3160 3050 3168 3161 3051 3162 3052 3163 3053 3164
230 240 242 246 254 256 262 266 264 273 276 274 292 284 302 296 312
178 188 191 192 199 200 206 210 210 215 220 220 230 230 240 240 250
93 103 97 110 116 118 116 116 127 119 123 134 128 142 135 148 142
.2700 .2850 .2600 .3000 .3000 .3100 .3000 .2853 .3200 .2853 .2853 .3200 .2853 .3200 .2853 .3200 .2853
.014 .022 .024 .024 .032 .035 .041 .047 .047 .052 .060 .061 .075 .077 .090 .091 .104
.009 .015 .017 .017 .024 .026 .032 .037 .037 .041 .049 .050 .064 .064 .078 .078 .092
.405 .428 .390 .450 .450 .465 .450 .428 .480 .428 .428 .480 .428 .480 .428 .480 .428
.432 .456 .416 .480 .480 .496 .480 .456 .512 .456 .456 .512 .456 .512 .456 .512 .456
.459 .485 .442 .510 .510 .527 .510 .485 .544 .485 .485 .544 .485 .544 .485 .544 .485
3118 3107 3108 3114 3109 3110 3119 3112 3111 3511 3122 3113 3150 3120 3115 3123 3170 3151 3121 3116 3171
260 266 270 281 276 284 280 290 286 286 290 304 307 304 304 300 315 318 314 314 325
206 210 215 220 220 224 224 230 230 230 236 242 244 244 244 246 248 252 252 252
126 130 133 134 138 136 144 143 152 153 160 158 158 161 164 169 161 164 168 169
.3330 .3330 .3330 .3200 .3400 .3330 .3500 .3400 .3760 .3760 .3800 .3670 .3600 .3830 .4000 .4000 .3600 .3600 .3830 .4000
.041 .047 .055 .060 .060 .066 .066 .075 .076 .079 .091 .101 .100 .101 .104 .110 .105 .111 .115 .115
.032 .037 .044 .048 .049 .054 .054 .063 .063 .065 .076 .087 .087 .087 .090 .094 .091 .097 .100 .100
.500 .500 .500 .480 .510 .500 .525 .510 .564 .564 .570 .551 .540 .575 .600 .570 .540 .540 .575 .600
.533 .533 .533 .512 .544 .533 .560 .544 .602 .602 .608 .587 .576 .613 .640 .608 .576 .576 .613 .640
.566 .566 .566 .544 .578 .566 .595 .578 .639 .639 .646 .624 .612 .651 .680 .646 .612 .612 .651 .680
3152 3117
329 324
258 262 262
169 172 177
.3600 .3600 .4200
.122 .127 .130
.108 .113 .115
.540 .540 .630
.576 .576 .672
.612 .612 .714
Hydraulic Roller High Lift Rated Duration @ .006" Tappet Lift High Lift Journal = S,B,F,R… MI 28.7 (13.8/14.9)
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The Tri-Power Xtreme™ lobes are designed to deliver the best combination of torque, horsepower and fuel effeciency. These designs have quick seat timing and excellent area under the curve but allow reduced spring force for less frictional losses compared to other members of the Xtreme family. These are sized especially for the required timing of the Tri-Power series to provide optimum valve timing to reduce the parisitic losses of pumping the intake charge in past the throttle blades and pushing out spent exhaust.e CAMSHAFT TYPE
Tri-Power Xtreme™ Rated Duration @ .006" Tappet Lift Hydraulic Roller Journal = J,S,B,R… MI 27.1 (13.3/13.8)
Tri-Power Xtreme™ Rated Duration @ .006" Tappet Lift Hydraulic Roller Journal = J,S,B,R…
LOBE #
RATED DURATION
3587 3589 3590 3591 3592
DURATION IN DEGREES @ .050
@ .200
238 242 246 254 262
186 190 194 202 210
103 107 111 118 125
3595 3596 3597
258 264 270
206 212 218
3604 3605 3606
246 254 262
3608 3609 3611
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.290 .292 .294 .298 .302
.020 .023 .028 .036 .047
.014 .017 .020 .028 .036
.435 .438 .441 .447 .453
.464 .467 .470 .477 .483
.493 .496 .500 .507 .513
118 124 130
.290 .294 .298
.043 .051 .060
.034 .041 .049
.435 .441 .447
.464 .470 .477
.493 .500 .507
194 202 210
115 123 130
.312 .318 .324
.028 .036 .047
.020 .028 .037
.468 .477 .486
.499 .509 .518
.530 .541 .551
258 264 270
206 212 218
124 130 136
.309 .314 .320
.043 .052 .060
.034 .041 .049
.464 .471 .480
.494 .502 .512
.525 .534 .544
3594
262
210
129
.320
.047
.037
.480
.512
.544
13390 13391 13392 13393 13394 13395 13396 13397 13398
262 264 266 268 270 272 274 276 278
210 212 214 216 218 220 222 224 226
129 131 132 134 136 137 139 141 143
.325 .325 .325 .325 .325 .325 .325 .325 .325
.047 .050 .053 .056 .059 .062 .065 .068 .071
.037 .039 .042 .045 .047 .050 .053 .056 .059
.488 .488 .488 .488 .488 .488 .488 .488 .488
.520 .520 .520 .520 .520 .520 .520 .520 .520
.553 .553 .553 .553 .553 .553 .553 .553 .553
HYDRAULIC ROLLER
TRI-POWER XTREME™ HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
THUMPR™ HYDRAULIC ROLLERS
The Thumpr™ lobe profiles are designed to optimize the character and sound, while providing excellent stability and a very wide power range in hydraulic roller applications. Specific profiles are developed uniquely for intake and exhaust. CAMSHAFT TYPE
Thumpr™ Int. Rated Duration @ .006" Tappet Lift Journal = N,S,B,R… MI 29.7 (14.7/15.0)
Thumpr™ Exh. Rated Duration @ .006" Tappet Lift Journal = N,S,B,R… MI 32.0 (14.7/17.3)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
3028 3022 3024 3026 3056 3058
275 283 291 299 307 315
219 227 235 243 251 259
134 142 150 157 165 173
.335 .341 .347 .354 .361 .368
.058 .070 .082 .096 .110 .125
.047 .058 .070 .082 .096 .110
.503 .512 .521 .531 .542 .552
.536 .546 .555 .566 .578 .589
.570 .580 .590 .602 .614 .626
3528 3532 3534 3536 3538
275 283 291 299 307
219 227 235 243 251
133 140 148 156 164
.325 .331 .337 .344 .350
.058 .070 .082 .096 .111
.047 .058 .070 .082 .096
.488 .497 .506 .516 .525
.520 .530 .539 .550 .560
.553 .563 .573 .585 .595
3552 3554 3556
283 291 299
227 235 243
139 146 154
.321 .327 .334
.070 .082 .096
.058 .070 .082
.482 .491 .501
.514 .523 .534
.546 .556 .568
3031 3043 3045 3047 3541 3543 3545 3547 3563 3565 3567
295 303 311 319 295 303 311 319 303 311 319
233 241 249 257 233 241 249 257 241 249 257
142 149 157 165 139 147 155 164 145 153 161
.325 .331 .338 .345 .315 .321 .328 .335 .311 .318 .325
.082 .094 .107 .120 .082 .094 .107 .120 .094 .106 .119
.070 .082 .094 .107 .070 .082 .094 .107 .082 .093 .106
.488 .497 .507 .518 .473 .482 .492 .503 .467 .477 .488
.520 .530 .541 .552 .504 .514 .525 .536 .498 .509 .520
.553 .563 .575 .587 .536 .546 .558 .570 .529 .541 .553
LOBE LIFT
QND HYDRAULIC ROLLERS The QND series is based off the popular LXL series profiles but are optimized to be used in smaller journal applications including standard (1.868") Small Block Chevy engines with lower (1.5:1 to 1.65:1) rocker ratios. These lobes have a softer closing ramp than the Xtreme Energy™ series and are a great choice for either marine or industrial applications where lift is important, as well as low seat erosion over time and low valve noise. Also a great choice for the exhaust lobe in any application. CAMSHAFT TYPE
LOBE #
RATED DURATION
QND Rated Duration @ .006" Tappet Lift Journal = S,B,F,R… MI 28.0 (13.5/14.5)
13354 13355 13356 13357 13358
266 270 274 278 282
DURATION IN DEGREES @ .050
@ .200
211 215 219 223 227
133 137 141 145 148
LOBE LIFT
.365 .365 .365 .365 .365
TAPPET LIFT @ TDC 106°
110°
.049 .054 .061 .067 .074
.038 .034 .049 .055 .061
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.548 .548 .548 .548 .548
.584 .584 .584 .584 .584
.621 .621 .621 .621 .621
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The SLW Hydraulic Rollers are very smooth designs, slower than the Thumpr™ exhaust, intended for high RPM use with heavy valves and more flexible rocker systems. CAMSHAFT TYPE
LOBE #
RATED DURATION
SLW Rated Duration @ .006" Tappet Lift MI 35.0 (16.6/18.4)
13531 13533 20535
316 324 332
DURATION IN DEGREES @ .050
@ .200
244 252 260
150 158 166
LOBE LIFT
.349 .355 .360
TAPPET LIFT @ TDC 106°
110°
.092 .105 .119
.080 .092 .105
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.558 .568 .576
.593 .604 .612
.628 .639 .648
XTREME ENERGY™ HYDRAULIC ROLLERS These designs share all of the characteristics of the flat tappet lobes but we have added the new technology of CRC (Constant Radius of Curvature) inverted radius of curvature ramp designs. COMP Cams® has enhanced this technique to ensure durability with these most aggressive hydraulic roller designs. The high lift versions that have lobe numbers in the 3100s are more aggressive over the nose and will require more spring or less RPM. These lobes run well in street/ strip and marine applications. With more agressive and faster ramps they also provide good vacuum. CAMSHAFT TYPE
LOBE #
RATED DURATION
Xtreme Energy™ Rated Duration @ .006" Tappet Lift Small Block Journal Journal = I,S,B,R… MI 27.1 (13.4/13.7)
3322 3323 3304 3310 3305 3302 3311 3300 3312 3301 3313 3314 3315 3316 3317 3318 3319
Xtreme Energy™ Rated Duration @ .006" Tappet Lift Small Block Journal Journal = S,B,R…
Big Block Journal Journal = B,R… MI 27.1 (13.4/13.7)
DURATION IN DEGREES @ .050
@ .200
244 249 252 252 256 258 258 262 264 266 270 276 282 288 294 300 306
192 198 200 200 204 206 206 210 212 214 218 224 230 236 242 248 254
89 104 113 122 116 124 128 126 133 129 139 145 151 157 164 171 178
3188 3190 3192 3194 3196
258 266 276 282 288
206 214 224 230 236
3340 3341 3342 3343 3344 3345 3346
252 258 264 270 276 282 288
200 206 212 218 224 230 236
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.245 .265 .285 .315 .285 .305 .320 .305 .325 .305 .330 .335 .340 .347 .360 .375 .387
.026 .032 .034 .034 .039 .041 .041 .046 .049 .052 .058 .068 .078 .089 .101 .114 .127
.018 .024 .026 .026 .030 .032 .032 .036 .039 .041 .046 .055 .064 .075 .086 .097 .110
.368 .398 .428 .473 .428 .458 .480 .458 .488 .458 .495 .503 .510 .521 .540 .563 .581
.392 .424 .456 .504 .456 .488 .512 .488 .520 .488 .528 .536 .544 .555 .576 .600 .619
.417 .451 .485 .536 .485 .519 .544 .519 .553 .519 .561 .570 .578 .590 .612 .638 .658
132 141 152 157 162
.336 .353 .378 .389 .390
.042 .053 .069 .078 .090
.032 .042 .056 .064 .075
.504 .530 .567 .584 .585
.538 .565 .605 .622 .624
.571 .600 .643 .661 .663
118 123 127 131 136 141 147
.300 .300 .300 .300 .300 .300 .306
.034 .042 .050 .058 .068 .078 .089
.026 .032 .039 .047 .055 .065 .075
.450 .450 .450 .450 .450 .450 .459
.480 .480 .480 .480 .480 .480 .490
.510 .510 .510 .510 .510 .510 .520
Continued on page 22
HYDRAULIC ROLLER
SLW HYDRAULIC ROLLER
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME ENERGY™ HYDRAULIC ROLLERS Continued DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
Big Block Journal Journal = B,R… MI 27.1 (13.4/13.7)
3347 3348 3349 3414 3415
294 300 306 310 312
242 248 254 258 260
155 162 170 173 174
.318 .329 .341 .341 .341
.100 .111 .123 .130 .133
.085 .096 .108 .115 .118
.477 .494 .512 .512 .512
.509 .526 .546 .546 .546
.541 .559 .580 .580 .580
Ford Journal Journal = F,R… MI 25.9(12.7/13.2)
3628 3610 3614 3630 3611 3615 3612 3632 3633 3613 3634 3635 3636 3637 3638
256 264 266 266 270 272 276 274 278 288 282 286 290 294 298
208 212 214 216 218 220 224 224 228 230 232 236 240 244 248
133 131 133 140 136 137 140 148 152 144 155 159 162 166 169
.333 .320 .320 .340 .320 .320 .320 .347 .352 .320 .353 .356 .359 .362 .365
.044 .050 .052 .056 .058 .062 .068 .069 .076 .078 .084 .092 .099 .107 .115
.033 .039 .042 .044 .047 .050 .055 .056 .062 .065 .069 .076 .084 .091 .099
.500 .480 .480 .510 .480 .480 .480 .521 .528 .480 .530 .534 .539 .543 .548
.533 .512 .512 .544 .512 .512 .512 .555 .563 .512 .565 .570 .574 .579 .584
.566 .544 .544 .578 .544 .544 .544 .590 .598 .544 .600 .605 .610 .615 .621
LOBE LIFT
XTREME 4X4™ HYDRAULIC ROLLERS Due to the allowances of lower engine speed, these designs are slightly faster than the original Xtreme Energy™ Hydraulic Rollers. Great low and mid-range torque. They are our most aggressive hydraulic roller lobes and run well in street, off-road and four-wheeling. CAMSHAFT TYPE
LOBE #
RATED DURATION
Xtreme 4x4 Rated Duration @ .006" Tappet Lift Small Block Journal Journal = S,B,F,R… MI 25.9(12.7/13.2)
3324 3326 3303 3306 3307 3308 3309
259 263 265 269 273 279 283
™
DURATION IN DEGREES @ .050
@ .200
210 214 216 220 224 230 234
131 134 136 138 141 145 148
LOBE LIFT
.316 .316 .316 .316 .316 .316 .316
TAPPET LIFT @ TDC 106°
110°
.047 .052 .056 .062 .069 .079 .087
.036 .041 .044 .049 .056 .065 .072
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.474 .474 .474 .474 .474 .474 .474
.506 .506 .506 .506 .506 .506 .506
.537 .537 .537 .537 .537 .537 .537
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The Xtreme Energy XFI™ series is designed for use with modern induction systems, heads, springs and rockers. The XFI™ intake lobes have more lift than the base Xtreme series, and the XFI™ exhaust lobes have more area under the curve, for better exhaust flow, than the base exhaust series. These are the first hydraulic roller profiles designed for use with COMP Cams® Beehive™ Valve Springs such as the #26915, #26918 & #26120. The combination of these profiles, the springs and our very stiff Ultra Pro Magnum™ Rocker Arms in higher ratios, makes for the most revolutionary improvement in hydraulic roller design to date by bringing the latest race winning technology to the street. CAMSHAFT TYPE
Xtreme XFI™ Int. Rated Duration @ .006" Tappet Lift Hydraulic Roller Journal = J,S,B,R… MI 26.6 (13.1/13.5)
Xtreme XFI™ Exh. Rated Duration @ .006" Tappet Lift Hydraulic Roller Journal = I,S,B,R… MI 27.3 (13.4/13.9)
LOBE #
RATED DURATION
3004 3010 3005 3011 3002 3012 3003 3013 3006 3014 3007 3008 3015 3009 13080 3016 13081 13082 3017 13083 13084 3018 13085 13086 3019 13087 13088 3020 13089 13090 3021
DURATION IN DEGREES @ .050
@ .200
250 252 254 256 258 260 262 264 266 268 270 272 274 276 278 280 282 284 286 288 290 292 294 296 298 300 302 304 306 308 310
200 202 204 206 208 210 212 214 216 218 220 222 224 226 228 230 232 234 236 238 240 242 244 246 248 250 252 254 256 258 260
126 128 130 132 134 136 137 139 141 143 145 147 149 150 152 154 156 157 159 161 163 165 166 168 170 172 174 176 178 180 182
3030 13130 13131 13132 3033 13133
256 258 260 262 264 266
204 206 208 210 212 214
13134 3034
268 270
216 218
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.342 .344 .345 .347 .348 .350 .352 .353 .354 .356 .357 .357 .358 .359 .360 .360 .361 .361 .362 .363 .364 .365 .366 .366 .367 .368 .369 .370 .371 .372 .373
.034 .036 .039 .041 .044 .047 .049 .052 .055 .058 .062 .065 .068 .072 .075 .079 .083 .087 .090 .094 .098 .102 .106 .110 .115 .119 .123 .127 .131 .136 .140
.025 .027 .029 .032 .034 .036 .039 .041 .044 .047 .049 .052 .055 .058 .062 .065 .068 .072 .075 .079 .083 .087 .090 .094 .098 .102 .106 .111 .115 .119 .123
.513 .516 .518 .521 .522 .525 .528 .530 .531 .534 .536 .536 .537 .539 .540 .540 .542 .542 .543 .545 .546 .548 .549 .549 .551 .552 .554 .555 .557 .558 .560
.547 .550 .552 .555 .557 .560 .563 .565 .566 .570 .571 .571 .573 .574 .576 .576 .578 .578 .579 .581 .582 .584 .586 .586 .587 .589 .590 .592 .594 .595 .597
.581 .585 .587 .590 .592 .595 .598 .600 .602 .605 .607 .607 .609 .610 .612 .612 .614 .614 .615 .617 .619 .621 .622 .622 .624 .626 .627 .629 .631 .632 .634
128 130 131 133 135 137
.333 .335 .337 .339 .341 .343
.040 .043 .045 .048 .050 .053
.031 .033 .035 .038 .040 .043
.500 .503 .506 .509 .512 .515
.533 .536 .539 .542 .546
.566 .570 .573 .576 .580
139 141
.345 .347
.056 .059
.045 .048
.518 .521
.549 .552 .555
.583 .587 .590
Continued on page 24
HYDRAULIC ROLLER
XTREME ENERGY XFI™ HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME ENERGY XFI™ HYDRAULIC ROLLERS Continued CAMSHAFT TYPE
Xtreme XFI™ Exh. Rated Duration @ .006" Tappet Lift Hydraulic Roller Journal = I,S,B,R… MI 27.3 (13.4/13.9)
LOBE #
RATED DURATION
13135 13136 3035 13137 13138 3036 13139 13140 3037 13141 13142 3038 13143 13144 3039 13145 13146 3040 13147 13148 3041
272 274 276 278 280 282 284 286 288 290 292 294 296 298 300 302 304 306 308 310 312
DURATION IN DEGREES @ .050
@ .200
220 222 224 226 228 230 232 234 236 238 240 242 244 246 248 250 252 254 256 258 260
143 145 147 148 151 152 154 156 158 160 162 163 165 167 169 171 172 174 176 178 180
LOBE LIFT
.349 .351 .353 .353 .354 .355 .356 .356 .357 .358 .359 .360 .361 .361 .362 .363 .363 .364 .365 .366 .367
TAPPET LIFT @ TDC 106°
110°
.063 .066 .069 .072 .076 .080 .083 .087 .091 .094 .098 .102 .106 .110 .114 .118 .122 .126 .130 .134 .138
.051 .053 .056 .059 .063 .066 .069 .072 .076 .079 .083 .087 .091 .094 .098 .102 .106 .110 .114 .118 .122
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.524 .527 .530 .530 .531 .533 .534 .534 .536 .537 .539 .540 .542 .542 .543 .545 .545 .546 .548 .549 .551
.558 .562 .565 .565 .566 .568 .570 .570 .571 .573 .574 .576 .578 .578 .579 .581 .581 .582 .584 .586 .587
.593 .597 .600 .600 .602 .604 .605 .605 .607 .609 .610 .612 .614 .614 .615 .617 .617 .619 .621 .622 .624
QXI HYDRAULIC ROLLERS The QXI Series lobe profiles are designed to provide the highest available valve lift for modern cylinder head ports, along with excellent stability and the broadest possible power range in hydraulic roller applications. Designed for both street and racing use, these lobes were developed in two degree intervals to allow small tuning variations between the long and short runners of single 4bbl type manifolds. CAMSHAFT TYPE
QXI Rated Duration @ .006" Tappet Lift Journal = S,B,F,R… MI 27.4 (13.4/14.0)
LOBE #
RATED DURATION
13440 13441 13442 13443 13444 13445 13446 13447 13448 13449 13450 13451 13452 13453
267 269 271 273 275 277 279 281 283 285 287 289 291 293
DURATION IN DEGREES @ .050
@ .200
215 217 219 221 223 225 227 229 231 233 235 237 239 241
137 139 141 142 144 146 148 150 152 154 156 158 160 162
LOBE LIFT
.373 .375 .377 .379 .381 .383 .385 .387 .389 .391 .393 .395 .397 .398
TAPPET LIFT @ TDC 106°
110°
.054 .057 .060 .063 .067 .070 .073 .077 .080 .084 .087 .091 .095 .099
.043 .046 .049 .051 .054 .057 .060 .064 .067 .070 .073 .077 .080 .084
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.560 .563 .566 .569 .572 .575 .578 .581 .584 .587 .590 .593 .596 .597
.597 .600 .603 .606 .610 .613 .616 .619 .622 .626 .629 .632 .635 .637
.634 .638 .641 .644 .648 .651 .655 .658 .661 .665 .668 .672 .675 .677
Continued on page 25
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
CAMSHAFT TYPE
QXI Rated Duration @ .006" Tappet Lift Journal = S,B,F,R… MI 27.4 (13.4/14.0)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
13454 13455 13456 13457 13458 13459 13460 13461 13462
295 297 299 301 303 305 307 309 311
243 245 247 249 251 253 255 257 259
164 166 168 170 172 174 176 177 179
.399 .399 .399 .399 .399 .399 .399 .399 .399
.103 .106 .110 .114 .118 .122 .126 .130 .134
.087 .091 .095 .099 .103 .106 .110 .114 .118
.599 .599 .599 .599 .599 .599 .599 .599 .599
.638 .638 .638 .638 .638 .638 .638 .638 .638
.678 .678 .678 .678 .678 .678 .678 .678 .678
13940 13941 13942 13942 13944 13946 13948 13950 13952 13954 13956 13958 13960 13962 13964 13966
267 269 271 273 275 279 283 287 291 295 299 303 307 311 315 319
215 217 219 221 223 227 231 235 239 243 247 251 255 259 263 267
135 138 140 142 143 147 151 155 159 163 167 171 174 178 182 185
.360 .362 .364 .366 .368 .372 .374 .376 .378 .382 .384 .384 .384 .384 .384 .384
.054 .057 .060 .063 .067 .073 .080 .087 .095 .103 .110 .118 .126 .134 .142 .149
.043 .046 .049 .051 .054 .060 .067 .073 .080 .087 .095 .103 .110 .118 .126 .133
.540 .543 .546 .549 .552 .558 .561 .564 .567 .573 .576 .576 .576 .576 .576 .576
.576 .579 .582 .586 .589 .595 .598 .602 .605 .611 .614 .614 .614 .614 .614 .614
.612 .615 .619 .622 .626 .632 .636 .639 .643 .649 .653 .653 .653 .653 .653 .653
LOBE LIFT
QXX HYDRAULIC ROLLERS The QXX Series lobe profiles are based off of the QXI series but are even more stable, have slightly less lobe lift and are softer off the seat for either exhaust lobe use or as intakes in even higher engine speed applications. Designed for both street and racing use, these lobes were developed in two degree intervals to allow small tuning variations between the long and short runners of single 4bbl type manifolds. CAMSHAFT TYPE
QXX Rated Duration @ .006" Tappet Lift Journal = S,B,F,R… MI 28.1 (13.7/14.4)
LOBE #
RATED DURATION
13470 13471 13472 13473 13474 13475 13476 13477 13478 13479 13480
277 279 281 283 285 287 289 291 293 295 297
DURATION IN DEGREES @ .050
@ .200
223 225 227 229 231 233 235 237 239 241 243
142 144 146 148 150 152 154 156 158 160 162
LOBE LIFT
.363 .365 .367 .369 .371 .373 .375 .377 .379 .381 .383
TAPPET LIFT @ TDC 106°
110°
.066 .070 .073 .076 .080 .083 .087 .090 .094 .098 .101
.054 .057 .060 .063 .066 .070 .073 .076 .080 .083 .087
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.545 .548 .551 .554 .557 .560 .563 .566 .569 .572 .575
.581 .584 .587 .590 .594 .597 .600 .603 .606 .610 .613
.617 .621 .624 .627 .631 .634 .638 .641 .644 .648 .651
Continued on page 26
HYDRAULIC ROLLER
QXI HYDRAULIC ROLLERS Continued
HYDRAULIC ROLLER
HYDRAULIC ROLLER
QXX HYDRAULIC ROLLERS Continued CAMSHAFT TYPE
QXX Rated Duration @ .006" Tappet Lift Journal = S,B,F,R… MI 28.1 (13.7/14.4)
LOBE #
RATED DURATION
13481 13482 13483 13484 13485 13486 13487 13488 13489 13490 13491 13492
299 301 303 305 307 309 311 313 315 317 319 321
DURATION IN DEGREES @ .050
@ .200
245 247 240 251 253 255 257 259 261 263 265 267
164 166 168 170 172 174 175 177 179 181 183 185
LOBE LIFT
.385 .387 .388 .389 .389 .389 .389 .389 .389 .389 .389 .389
TAPPET LIFT @ TDC 106°
110°
.105 .109 .113 .117 .121 .125 .128 .132 .136 .140 .144 .148
.090 .094 .008 .101 .105 .109 .113 .117 .120 .124 .128 .132
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.578 .581 .582 .584 .584 .584 .584 .584 .584 .584 .584 .584
.616 .619 .621 .622 .622 .622 .622 .622 .622 .622 .622 .622
.655 .658 .660 .661 .661 .661 .661 .661 .661 .661 .661 .661
QNI HYDRAULIC ROLLERS The QNI series lobe profiles are based off of the QXI series but are softened just enough to grind accurately even with lobe base circle sizes as small as .900" diameter, as is sometimes required in long stroke Small Block Chevy applications. CAMSHAFT TYPE
QNI Rated Duration @ .006" Tappet Lift Journal = N,I,J… MI 28.5 (14.0/14.5)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
13540 13541 13542 13543 13544 13545 13546 13547 13548 13549 13550 13551 13552 13553 13554 13555
279 281 283 285 287 289 291 293 295 297 299 301 303 305 307 309
226 228 230 232 234 236 238 240 242 244 246 248 250 252 254 256
147 149 151 153 155 157 159 161 163 165 167 169 170 172 174 176
.384 .386 .388 .390 .392 .394 .396 .397 .398 .398 .398 .398 .398 .398 .398 .398
.071 .075 .078 .082 .085 .089 .092 .096 .100 .104 .108 .112 .115 .119 .123 .127
.059 .062 .065 .068 .072 .075 .078 .082 .085 .089 .092 .096 .100 .104 .108 .111
.576 .579 .582 .585 .588 .591 .594 .596 .597 .597 .597 .597 .597 .597 .597 .597
.614 .618 .621 .624 .627 .630 .634 .635 .637 .637 .637 .637 .637 .637 .637 .637
.653 .656 .660 .663 .666 .670 .673 .675 .677 .677 .677 .677 .677 .677 .677 .677
13556 13557 13558
311 313 315
258 260 262
178 180 182
.398 .398 .398
.131 .135 .139
.115 .119 .123
.597 .597 .597
.637 .637 .637
.677 .677 .677
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The QNX Series lobe profiles are based off of the QXX series but are softened just enough to grind accurately even with lobe base circle sizes as small as .900" diameter as is sometimes required in long stroke Small Block Chevy applications. CAMSHAFT TYPE
QNX Rated Duration @ .006" Tappet Lift Journal = N,I,J… MI 29.1 (14.2/14.9)
LOBE #
RATED DURATION
13570 13571 13572 13573 13574 13575 13576 13577 13578 13579 13580 13581 13582 13583 13584 13585 13586 13587 13588
289 291 293 295 297 299 301 303 305 307 309 311 313 315 317 319 321 323 325
DURATION IN DEGREES @ .050
@ .200
234 236 238 240 242 244 246 248 250 252 254 256 258 260 262 264 266 268 270
153 155 157 159 161 163 165 167 169 171 172 174 176 178 180 182 183 185 187
LOBE LIFT
.374 .376 .378 .380 .382 .384 .386 .387 .388 .388 .388 .388 .388 .388 .388 .388 .388 .388 .388
TAPPET LIFT @ TDC 106°
110°
.084 .087 .091 .094 .098 .101 .105 .109 .113 .116 .120 .124 .128 .132 .136 .140 .143 .147 .151
.070 .074 .077 .080 .084 .087 .091 .094 .098 .101 .105 .109 .113 .116 .120 .124 .128 .132 .135
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.561 .564 .567 .570 .573 .576 .579 .581 .582 .582 .582 .582 .582 .582 .582 .582 .582 .582 .582
.598 .602 .605 .608 .611 .614 .618 .619 .621 .621 .621 .621 .621 .621 .621 .621 .621 .621 .621
.636 .639 .643 .646 .649 .653 .656 .658 .660 .660 .660 .660 .660 .660 .660 .660 .660 .660 .660
XTREME MARINE™ HYDRAULIC ROLLERS These profiles use the same design techniques of the base Xtreme Energy™ Hydraulic Rollers but have been optimized to increase power and durability when run at steady RPM for extended periods of time. Specifically designed for Big Blocks with heavier valve train components.. CAMSHAFT TYPE
LOBE #
RATED DURATION
Xtreme Marine™ Rated Duration @ .006" Tappet Lift Big Block Journal Journal = G,I,S,B,R… MI 28.6 (13.7/15.0)
3354 3355 3356 3357 3358 3359 3362 3363 3364
286 292 298 304 310 316 322 328 334
DURATION IN DEGREES @ .050
@ .200
230 236 242 248 254 260 266 272 278
142 146 153 159 163 169 174 179 185
LOBE LIFT
.322 .322 .333 .333 .338 .338 .342 .347 .353
TAPPET LIFT @ TDC 106°
110°
.074 .085 .095 .106 .116 .126 .136 .146 .155
.062 .071 .081 .092 .101 .112 .122 .132 .142
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.483 .483 .500 .500 .507 .507 .513 .521 .530
.515 .515 .533 .533 .541 .541 .547 .555 .565
.547 .547 .566 .566 .575 .575 .581 .590 .600
HYDRAULIC ROLLER
QNX HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME MARINE™ HYDRAULIC ROLLERS − HIGH LIFT
These have the same ramp designs as the lower lift Xtreme Marine™ designs but have higher lift to enhance power output with cylinder head and engine modifications. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
Xtreme Marine™ High Lift Rated Duration @ .006" Tappet Lift
3473 3474 3410 3475 3376 3411 3479 3370
290 292 294 294 296 300 300 304
234 236 238 238 240 244 244 248
152 154 154 156 157 159 163 167
.360 .360 .350 .360 .360 .350 .380 .380
.081 .085 .088 .088 .092 .099 .100 .107
.068 .071 .075 .075 .078 .085 .085 .092
.540 .540 .525 .540 .540 .525 .570 .570
.576 .576 .560 .576 .576 .560 .608 .608
.612 .612 .595 .612 .612 .595 .646 .646
3377 3371 3372 3373 3374 3375 3447
306 308 314 318 322 326 330
250 254 258 262 266 270 274
166 171 175 179 182 186 190
.360 .380 .380 .380 .380 .380 .380
.111 .119 .126 .134 .142 .149 .157
.096 .103 .111 .118 .126 .134 .141
.540 .570 .570 .570 .570 .570 .570
.576 .608 .608 .608 .608 .608 .608
.612 .646 .646 .646 .646 .646 .646
Journal = G,I,S,B,R.. MI 28.6 (13.7/15.0)
LOBE LIFT
HUC HYDRAULIC ROLLERS These have the same ramp designs as the lower lift Xtreme Marine™ designs but have higher lift to enhance power output with cylinder head and engine modifications. CAMSHAFT TYPE
HUC High Lift Rated Duration @ .006" Tappet Lift Journal = S,B,F,R… MI 28.7 (13.9/14.8)
LOBE #
RATED DURATION
13202 13033 13203 13034 13037 13045 13046 13047 13048 13050 13051 13052 13053 13054 13055 13056 13057 13058 13059 13360 13361
274 278 278 282 282 286 288 290 292 294 298 302 306 310 314 318 322 326 330 334 338
DURATION IN DEGREES @ .050
@ .200
219 223 223 227 227 231 233 235 237 239 243 247 251 255 259 263 267 271 275 279 283
138 141 141 145 146 149 152 154 156 158 162 166 169 173 177 181 184 188 191 195 198
LOBE LIFT
0.344 .336 0.344 .344 .352 .352 .355 .359 .359 .365 .369 .372 .372 .372 .372 .372 .372 .372 .372 .372 .372
TAPPET LIFT @ TDC 106°
110°
.060 .066 .066 .072 .072 .079 .082 .086 .089 .093 .100 .108 .115 .123 .131 .139 .147 .155 .162 .169 .176
.048 .054 .054 .059 .060 .066 .069 .072 .075 .079 .086 .093 .100 .108 .115 .123 .131 .139 .146 .154 .161
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.550 .538 .550 .550 .563 .563 .568 .574 .574 .584 .590 .595 .595 .595 .595 .595 .595 .595 .595 .595 .595
.585 .571 .585 .585 .598 .598 .604 .610 .610 .621 .627 .632 .632 .632 .632 .632 .632 .632 .632 .632 .632
.619 .605 .619 .619 .634 .634 .639 .646 .646 .657 .664 .670 .670 .670 .670 .670 .670 .670 .670 .670 .670
Continued on page 29
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
CAMSHAFT TYPE
HUC High Lift Rated Duration @ .006" Tappet Lift Journal = S,B,F,R… MI 28.7 (13.9/14.8)
LOBE #
RATED DURATION
13861 13862 13863 13064 13065 13066 13067 13068 13069 13074 13075
298 302 306 310 314 318 322 326 330 334 338
DURATION IN DEGREES @ .050
@ .200
243 247 251 255 259 263 267 271 275 279 283
163 167 171 175 179 183 187 190 194 198 202
LOBE LIFT
.392 .396 .400 .400 .400 .400 .400 .400 .400 .400 .400
TAPPET LIFT @ TDC 106°
110°
.100 .108 .116 .124 .132 .140 .148 .156 .164 .172 .180
.086 .093 .100 .108 .116 .124 .132 .140 .148 .156 .164
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.627 .634 .640 .640 .640 .640 .640 .640 .640 .640 .640
.666 .673 .680 .680 .680 .680 .680 .680 .680 .680 .680
.706 .713 .720 .720 .720 .720 .720 .720 .720 .720 .720
HLO HYDRAULIC ROLLERS The HLO is similar to the HUC on the opening side with increased stability and optimized shape over the nose for improved dynamics. Acceleration and ramp rates are optimized on opening and closing to give the best possible high RPM performance without noise or bounce. 8000RPM+ with light valve and high rate spring. CAMSHAFT TYPE
HLO Rated Duration @ .006" Tappet Lift Journal = S, B, F, R MI 28.4 (14.0/14.4)
LOBE #
RATED DURATION
13738 13740 13742 13774 13775 13776 13777 13778 13779 13780 13781 13782 13783 13790 13791 13792 13793 13794 13795 13796
268 272 276 280 282 284 286 288 290 292 294 296 298 300 302 304 306 308 310 312
DURATION IN DEGREES @ .050
@ .200
213 217 221 225 227 229 231 233 235 237 239 241 243 245 247 249 251 253 255 257
131 135 138 142 144 146 148 150 152 154 156 157 159 161 163 164 166 168 170 172
LOBE LIFT
.347 .349 .351 .353 .354 .355 .356 .357 .358 .359 .360 .361 .361 .361 .361 .361 .361 .361 .361 .361
TAPPET LIFT @ TDC 106°
110°
.053 .059 .065 .071 .074 .077 .081 .084 .088 .091 .095 .098 .102 .105 .109 .113 .116 .120 .124 .127
.043 .048 .053 .059 .052 .065 .068 .071 .074 .077 .081 .084 .088 .091 .095 .098 .102 .105 .109 .113
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.590 .593 .597 .600 .602 .604 .605 .607 .609 .610 .612 .614 .614 .614 .614 .614 .614 .614 .614 .614
.625 .628 .632 .635 .637 .639 .641 .643 .644 .646 .648 .650 .650 .650 .650 .650 .650 .650 .650 .650
.659 .663 .667 .671 .673 .675 .676 .678 .680 .682 .684 .686 .686 .686 .686 .686 .686 .686 .686 .686
HYDRAULIC ROLLER
HUC HYDRAULIC ROLLERS Continued
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME RPM FOR LS1
Designed with Xtreme Energy™ technology to provide excellent power with the LS1’s enhanced cylinder head design and high RPM performance. These provide outstanding low RPM torque with increased stability when coupled with the LS1’s larger base circle and 1.7:1+ rocker ratios. High lift versions are excellent for use with improved heads, manifolds and COMP #26915 and #26918 valve springs. CAMSHAFT TYPE
Xtreme RPM for LS1 Rated Duration @ .006" Tappet Lift Journal = I,S,B,R… MI 27.8 (13.9/13.9)
Xtreme RPM for LS1 High Lift Rated Duration @ .006" Tappet Lift Journal = S,B,F,R… MI 27.8 (13.9/13.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
3750 3751 3766 3752 3767 3753 3754 3755 3735 3756 3757 3659
260 266 270 272 274 278 280 282 284 286 290 309
206 212 216 218 220 224 226 228 230 232 236 256
121 126 130 132 134 137 139 141 142 144 147 166
.302 .306 .308 .310 .312 .314 .315 .316 .317 .318 .320 .325
.043 .051 .056 .059 .062 .069 .072 .075 .078 .082 .088 .123
.034 .040 .045 .048 .051 .056 .059 .062 .065 .069 .075 .109
.453 .459 .462 .465 .468 .471 .473 .474 .476 .477 .480 .488
.483 .490 .493 .496 .499 .502 .504 .506 .507 .509 .512 .520
.513 .520 .524 .527 .530 .534 .536 .537 .539 .541 .544 .553
3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719
261 263 265 267 269 271 273 275 277 279 281 283 285
208 210 212 214 216 218 220 222 224 226 228 230 232
128 129 131 133 135 136 138 140 142 143 145 147 148
.326 .327 .328 .329 .330 .331 .332 .333 .334 .335 .336 .337 .338
.045 .048 .051 .054 .056 .059 .062 .066 .069 .072 .075 .079 .082
.036 .039 .041 .043 .045 .048 .051 .054 .056 .059 .062 .066 .069
.489 .491 .492 .494 .495 .497 .498 .500 .501 .503 .504 .506 .507
.522 .523 .525 .526 .528 .530 .531 .533 .534 .536 .538 .539 .541
.554 .556 .558 .559 .561 .563 .564 .566 .568 .570 .571 .573 .575
3706 3705 3652 3653 3654 3655 3656 3657 3658 3660 3661 3662 3663
287 289 291 293 295 297 299 301 303 305 307 309 311
234 236 238 240 242 244 246 248 250 252 254 256 258
150 152 154 156 158 160 162 164 166 168 169 170
.339 .340 .344 .346 .348 .350 .350 .350 .350 .350 .350 .350
.086 .089 .093 .096 .100 .103 .107 .111 .114 .118 .122 .125
.072 .075 .079 .082 .085 .089 .092 .097 .100 .103 .107 .110
.509 .510 .516 .519 .522 .525 .525 .525 .525 .525 .525 .525
.542 .544 .550 .554 .557 .560 .560 .560 .560 .560 .560 .560
.576 .578 .585 .588 .592 .595 .595 .595 .595 .595 .595 .595
3666 3667 3668
315 319 323
262 266 270
172 174 177 180
.350 .350 .350 .350
.129 .135 .141 .147
.114 .120 .127 .133
.525 .525 .525 .525
.560 .560 .560 .560
.595 .595 .595 .595
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
These profiles use the Xtreme RPM opening with the faster XE-R style closing. These should be stable to higher RPM than the XE-R and the controlled opening rates may work well in some applications. CAMSHAFT TYPE
Xtreme RPR Rated Duration @ .006" Tappet Lift Journal = B,F,R,Q… MI 27.1 (13.9/13.2)
LOBE #
RATED DURATION
3669 3670 3671 3672 3673 3674 3675 3676
269 271 273 275 277 279 281 283
DURATION IN DEGREES @ .050
@ .200
217 219 221 223 225 227 229 231
137 139 140 142 144 145 147 149
LOBE LIFT
.331 .332 .333 .334 .335 .336 .337 .338
TAPPET LIFT @ TDC 106°
110°
.059 .062 .066 .069 .072 .075 .079 .082
.048 .051 .054 .056 .059 .062 .066 .069
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.497 .498 .500 .501 .503 .504 .506 .507
.530 .531 .533 .534 .536 .538 .539 .541
.563 .564 .566 .568 .570 .571 .573 .575
XTREME ENERGY™ XE-R FOR LS1 The XE-R designs are the most aggressive COMP Cams® hydraulic roller ramps to date. They are quicker off and on the seat than the original Xtreme Energy™ Series, yet they are still stable with rigid valve train and optimized spring selection. These profiles provide even more area than the comparable Small Block Chevrolet designs that are often used by other companies to "grow" a more aggressive lobe for LS1 applications. CAMSHAFT TYPE
LOBE #
RATED DURATION
XE-R for LS1 Rated Duration @ .006" Tappet Lift LS1 55mm Journal Journal = B,F,R,Q… MI 25.9 (12.7/13.2)
3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734
269 271 273 275 277 279 281 283 285 287 289 291 293 295 297
DURATION IN DEGREES @ .050
@ .200
220 222 224 226 228 230 232 234 236 238 240 242 244 246 248
143 144 146 147 149 151 153 155 157 159 161 163 165 167 169
LOBE LIFT
.342 .342 .342 .344 .346 .348 .350 .352 .354 .356 .358 .359 .360 .361 .362
TAPPET LIFT @ TDC 106°
110°
.062 .065 .069 .073 .076 .080 .083 .087 .091 .095 .099 .102 .106 .110 .114
.049 .052 .055 .059 .062 .065 .069 .072 .076 .079 .083 .087 .091 .095 .098
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.513 .513 .513 .516 .519 .522 .525 .528 .531 .534 .537 .539 .540 .542 .543
.547 .547 .547 .550 .554 .557 .560 .563 .566 .570 .573 .574 .576 .578 .579
.581 .581 .581 .585 .588 .592 .595 .598 .602 .605 .609 .610 .612 .614 .615
HYDRAULIC ROLLER
XTREME RPR HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME ENERGY™ LSL HYDRAULIC ROLLERS FOR LS1 The LSL Series has been designed with enhanced characteristics from our latest professional drag racing profiles. These have excellent ramp quickness but are designed in a way to improve stability over other designs with such short seat timing. The increased lift works well with the latest Gen III and LS cylinder head port designs by providing excellent area above 1/2" valve lift. CAMSHAFT TYPE
LSL for LS1 Rated Duration @ .006" Tappet Lift Journal = F,R,Q… MI 26.0 (12.8/13.2)
LSL 1.8 VM Rated Duration @ .006" Tappet Lift
LSL LL Rated Duration @ .006" Tappet Lift
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
13013 13093 13014 13094 13015 13095 13016 13096 13017 13097 13018 13041 13019 13099 13020 13230 13021 13231 13022 13232 13023 13233 13024 13234 13025 13235 13026 13236 13027 13237 13028 13238 13029
261 263 265 267 269 271 273 275 277 279 281 283 285 287 289 291 293 295 297 299 301 303 305 307 309 311 313 315 317 319 321 323 325
211 213 215 217 219 221 223 225 227 229 231 233 235 237 239 241 243 245 247 249 251 253 255 257 259 261 263 265 267 269 271 273 275
135 137 139 141 143 145 147 149 151 152 154 156 158 160 162 164 166 167 169 171 173 174 176 178 180 181 183 185 187 188 190 192 193
.353 .354 .355 .356 .357 .358 .359 .360 .361 .362 .363 .364 .365 .366 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367 .367
.048 .051 .054 .057 .060 .064 .067 .071 .074 .078 .081 .085 .089 .093 .096 .101 .105 .109 .113 .117 .121 .125 .129 .133 .137 .141 .145 .149 .153 .156 .160 .163 .167
.037 .040 .042 .045 .048 .051 .054 .057 .060 .064 .067 .071 .074 .078 .081 .085 .089 .093 .097 .101 .105 .109 .113 .117 .121 .125 .129 .133 .137 .141 .144 .148 .151
.565 .566 .568 .570 .571 .573 .574 .576 .578 .579 .581 .582 .584 .586 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587 .587
.600 .602 .604 .605 .607 .609 .610 .612 .614 .615 .617 .619 .621 .622 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624 .624
.635 .637 .639 .641 .643 .644 .646 .648 .650 .652 .653 .655 .657 .659 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661 .661
13123
260
209
130
.333
.045
.035
.533
.566
.599
13125
268
217
137
.337
.057
.045
.539
.573
.607
13321 13322 13323 13324 13325 13326 13187
293 297 301 305 309 313 286
243 247 251 255 259 263 238
163 167 170 174 177 181 160
.350 .350 .350 .350 .350 .350 .370
.104 .112 .120 .127 .135 .143 .087
.089 .096 .104 .111 .119 .127 .072
.560 .560 .560 .560 .560 .560 .592
.595 .595 .595 .595 .595 .595 .629
.630 .630 .630 .630 .630 .630 .666
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME ENERGY™ LSG HYDRAULIC ROLLERS FOR LS1
The LSG series is based of the LSL but with slightly softer ramps and less lift. Can be quieter and more stable at high engine speeds or with 1.8:1 ratios than the LSL base profiles. CAMSHAFT TYPE
LSG for LS1 Rated Duration @ .006" Tappet Lift Journal = F,R,Q… MI 25.8 (12.7/13.1)
LSG HL Rated Duration @ .006" Tappet Lift LS1 55mm Journal MI 25.8 (12.7/13/1)
LOBE #
RATED DURATION
13115 13116 13117 13118 13119 13120 13121 13122 13837 13838 13839 13840 13841 13842 13843 13844 13845 13846 13847 13848 13849
DURATION IN DEGREES @ .050
@ .200
267 271 275 279 283 287 291 295
218 222 226 230 234 238 242 246
140 144 148 151 155 159 162 166
275 277 279 281 283 285 287 289 291 293 295 297 299
226 228 230 232 234 236 238 240 242 244 246 248 250
150 152 153 155 157 159 161 162 164 166 168 169 171
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.350 .351 .352 .353 .354 .355 .356 .357
.057 .064 .071 .078 .086 .093 .101 .109
.045 .051 .058 .064 .071 .078 .086 .093
.560 .562 .563 .565 .566 .568 .570 .571
.595 .597 .598 .600 .602 .604 .605 .607
.630 .632 .634 .635 .637 .639 .641 .643
.369 .369 .369 .369 .369 .369 .369 .369 .369 .369 .369 .369 .369
.072 .075 .079 .083 .086 .090 .094 .098 .102 .106 .110 .114 .118
.058 .061 .065 .068 .072 .075 .079 .082 .086 .090 .094 .098 .101
.590 .590 .590 .590 .590 .590 .590 .590 .590 .590 .590 .590 .590
.627 .627 .627 .627 .627 .627 .627 .627 .627 .627 .627 .627 .627
.664 .664 .664 .664 .664 .664 .664 .664 .664 .664 .664 .664 .664
XTREME ENERGY™ LXL HYDRAULIC ROLLERS FOR LS1 The LXL Series is based off the popular LSL profiles but are optimized with lower acceleration and a softer closing ramp for less valve train noise and better stability with higher (1.8:1+) ratio rocker arms. These profiles are an excellent choice on the exhaust when used with an LSL intake and perform well for both the intake and exhaust when used in either LS7 or other high ratio applications. These also are a great choice for road race type engines that require extended use at high engine speeds. CAMSHAFT TYPE
LXL for LS1 Rated Duration @ .006" Tappet Lift Journal = B,F,R,Q… MI 26.9 (13.1/13.8)
LOBE #
RATED DURATION
13155 13156 13157 13172 13158 13173 13159 13174 13160 13175 13161 13176 13162
266 270 274 276 278 280 282 284 286 288 290 292 294
DURATION IN DEGREES @ .050
@ .200
214 218 222 224 226 228 230 232 234 236 238 240 242
136 139 143 145 147 149 151 153 155 157 159 161 162
LOBE LIFT
.350 .352 .354 .355 .356 .357 .358 .359 .360 .361 .362 .362 .362
TAPPET LIFT @ TDC 106°
110°
.053 .059 .065 .068 .072 .075 .079 .082 .086 .090 .094 .097 .101
.042 .047 .053 .056 .059 .062 .065 .068 .072 .075 .079 .082 .086
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.560 .563 .566 .568 .570 .571 .573 .574 .576 .578 .579 .579 .579
.595 .598 .602 .604 .605 .607 .609 .610 .612 .614 .615 .615 .615
.630 .634 .637 .639 .641 .643 .644 .646 .648 .650 .652 .652 .652
Continued on page 34
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME ENERGY™ LXL HYDRAULIC ROLLERS FOR LS1 Continued CAMSHAFT TYPE
LXL for LS1 Rated Duration @ .006" Tappet Lift Journal = B,F,R,Q… MI 26.9 (13.1/13.8)
LOBE #
RATED DURATION
13262 13163 13263 13164 13264 13165 13265 13166 13266 13167 13267 13168 13268 13169 13269 13170
296 298 300 302 304 306 308 310 312 314 316 318 320 322 324 326
DURATION IN DEGREES @ .050
@ .200
244 246 248 250 252 254 256 258 260 262 264 266 268 270 272 274
164 166 168 170 171 173 174 176 178 179 181 182 184 186 187 189
LOBE LIFT
.362 .362 .362 .362 .362 .362 .362 .362 .362 .362 .362 .362 .362 .362 .362 .362
TAPPET LIFT @ TDC 106°
110°
.105 .109 .113 .117 .121 .124 .128 .132 .136 .139 .143 .146 .150 .153 .157 .160
.090 .093 .097 .101 .105 .109 .112 .116 .120 .124 .127 .131 .135 .138 .142 .145
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.579 .579 .579 .579 .579 .579 .579 .579 .579 .579 .579 .579 .579 .579 .579 .579
.615 .615 .615 .615 .615 .615 .615 .615 .615 .615 .615 .615 .615 .615 .615 .615
.652 .652 .652 .652 .652 .652 .652 .652 .652 .652 .652 .652 .652 .652 .652 .652
XTREME ENERGY™ LSK HYDRAULIC ROLLERS FOR LS1
The LSK Series has been designed with enhanced characteristics from our latest professional drag racing profiles. These have excellent ramp quickness. They are VERY hard on parts and not generally recommended in street applications! CAMSHAFT TYPE
LSK for LS1 Rated Duration @ .006" Tappet Lift Journal = B,F,R,Q… MI 26.6 (13.1/13.5)
LOBE #
RATED DURATION
2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136
265 269 273 277 281 285 289 293 297 301 305 309 313
DURATION IN DEGREES @ .050
@ .200
215 219 223 227 231 235 239 243 247 251 255 259 263
142 145 149 153 156 160 164 168 171 175 179 183 186
LOBE LIFT
.370 .372 .374 .376 .378 .380 .382 .384 .386 .388 .390 .390 .390
TAPPET LIFT @ TDC 106°
110°
.054 .060 .066 .074 .081 .089 .096 .104 .113 .121 .130 .138 .146
.042 .048 .054 .060 .067 .074 .081 .089 .096 .104 .113 .121 .129
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.592 .595 .598 .602 .605 .608 .611 .614 .618 .621 .624 .624 .624
.629 .632 .636 .639 .643 .646 .649 .653 .656 .660 .663 .663 .663
.666 .670 .673 .677 .680 .684 .688 .691 .695 .698 .702 .702 .702
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The VVI Series is based off the popular LSL profiles but are optimized for increase piston to valve clearance and more allowable advance in variable valve timing applications (GM LS and Dodge Hemi). These are intended as intake lobes and result in approximately .008" more tappet clearance at TDC compared to a 1° larger LSL profile or about the same clearance as a 5° smaller LSL design. CAMSHAFT TYPE
Xtreme Energy VVI Rated Duration @ .006" Tappet Lift ™
Journal = R,Q… MI 25.3 (12.5/12.8)
LOBE #
RATED DURATION
13180 13181 13182 13183 13184 13185 13186
258 262 266 270 274 278 282
DURATION IN DEGREES @ .050
@ .200
210 214 218 222 226 230 234
133 137 141 145 149 152 156
LOBE LIFT
.356 .358 .360 .362 .364 .366 .368
TAPPET LIFT @ TDC 106°
110°
.041 .046 .052 .058 .065 .072 .079
.030 .035 .040 .046 .052 .058 .065
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.570 .573 .576 .579 .582 .586 .589
.605 .609 .612 .615 .619 .622 .626
.641 .644 .648 .652 .655 .659 .662
L3E HYDRAULIC ROLLERS The L3E is similar to the LSL but with a faster opening side to increase area while delaying the intake opening that starts the overlap region. The cling side has slightly more ramp for quiet operation and outstanding stability with the Part #7228 or #7230 Conical Valve Springs. The nose shape and 2° offset at .050” work together for outstanding power and dynamic control with these valve springs and also maximize power while minimizing emissions output at these durations. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
L3E Rated Duration @ .006” Tappet Lift
13868 13870 13872 13874
255 259 263 267
205 209 213 217
131 135 139 143
.356 .360 .364 .368
.035 .040 .046 .052
.026 .030 .035 .040
.570 .576 .582 .589
.605 .612 .619 .626
.641 .648 .655 .662
13886
287
237
161
.370
.087
.072
.592
.629
.666
Journal = R MI 25.6 (12.4/13.2)
LOBE LIFT
LSN & LSD HYDRAULIC ROLLERS FOR DOD These two series are designed for GM LS applications with Displacement on Demand. Because of extra travel of the deactivation lifter seat before it locks in lock mode, these profiles must be designed differently than the non-cylinder deactivation lobes. The result is that the LSD "Deac" profiles look more like solid lifter profiles as that motion is akin to about .005" lash at the tappet. The LSN "non-Deac" profiles are more like standard hydraulic roller designs at the seat but matched to the LSN profiles over the nose. Note: Cylinders 1-4-6-7 are the "Deac" or Deactivation cylinders and 2-3-5-6 are the "non-Deac" cylinders. CAMSHAFT TYPE
LSN (Non-Deac Cyls) Rated Duration @ .006" Tappet Lift 55mm Journal .7756" BCR MI 26.7 (13.1/13.6)
LOBE #
RATED DURATION
13299 13300 13301 13302 13303 13304 13305 13306 13307
258 262 266 270 274 278 282 286 290
DURATION IN DEGREES @ .050
@ .200
206 210 214 218 222 226 230 234 238
119 123 126 130 133 137 140 144 147
LOBE LIFT
.294 .294 .294 .294 .294 .294 .294 .294 .294
TAPPET LIFT @ TDC 106°
110°
.042 .047 .053 .059 .065 .072 .079 .086 .092
.031 .037 .042 .048 .053 .059 .065 .072 .079
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.470 .470 .470 .470 .470 .470 .470 .470 .470
.500 .500 .500 .500 .500 .500 .500 .500 .500
.529 .529 .529 .529 .529 .529 .529 .529 .529
Continued on page 36
HYDRAULIC ROLLER
XTREME ENERGY™ VVI HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
LSN & LSD HYDRAULIC ROLLERS FOR DOD Continued LSN (Non-Deac) Rated Duration @ .006" Tappet Lift 55mm Journal .750" BCR MI 26.7 (13.1/13.6)
LSD (Deac Cyls) Rated Duration @ .006" Tappet Lift 55mm Journal .7756" BCR MI 29.0 (13.9/15.1)
LSD (Deac Cyls) Rated Duration @ .006" Tappet Lift 55mm Journal .750" BCR MI 29.0 (13.9/15.1)
13330 13331 13332 13333 13334 13335
262 266 270 274 278 282
210 214 218 222 226 230
127 130 134 137 140 144
.318 .318 .318 .318 .318 .318
.047 .053 .059 .065 .071 .078
.037 .042 .048 .053 .058 .065
.509 .509 .509 .509 .509 .509
.541 .541 .541 .541 .541 .541
.572 .572 .572 .572 .572 .572
13310 13311 13312 13313 13314 13315 13316 13317 13318
274 278 282 286 290 294 298 302 306
212 216 220 224 228 232 236 240 244
123 127 130 133 137 140 144 147 151
.294 .294 .294 .294 .294 .294 .294 .294 .294
.047 .053 .059 .065 .072 .079 .086 .092 .099
.037 .042 .048 .053 .059 .065 .072 .079 .085
.470 .470 .470 .470 .470 .470 .470 .470 .470
.500 .500 .500 .500 .500 .500 .500 .500 .500
.529 .529 .529 .529 .529 .529 .529 .529 .529
13340 13341 13342 13343 13344 13345
274 278 282 286 290 294
212 216 220 224 228 232
127 131 134 137 141 144
.318 .318 .318 .318 .318 .318
.051 .056 .062 .068 .074 .080
.041 .045 .051 .056 .061 .067
.509 .509 .509 .509 .509 .509
.541 .541 .541 .541 .541 .541
.572 .572 .572 .572 .572 .572
EHI EHX HYDRAULIC ROLLERS The EHI (intake) and EHX (exhaust) Series are higher ratio versions of the DHI and DHX hybrid hydraulic/solid roller designs. These are intended for race applications that may see some street use or for other special applications with their primary emphasis on performance without compromise for noise concerns. 27 MAI intake and 30 MAI exhaust. 2.036" Journal MINIMUM. CAMSHAFT TYPE
EHI Rated Duration @ .006" Tappet Lift Journal = F,R,Q,M MI 26.8 (12.9/13.9)
LOBE #
RATED DURATION
12854 12855 12856 12857 12858 12859 12668 12669 12670 12671 12672 12673 12674 12675 12676 12677 12678
270 272 274 276 278 280 282 284 286 288 290 292 294 296 298 300 302
DURATION IN DEGREES @ .050
@ .200
219 221 223 225 227 229 231 233 235 237 239 241 243 245 247 249 251
143 145 147 149 151 152 154 156 158 160 162 163 165 167 169 171 173
LOBE LIFT
.371 .372 .373 .374 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375
TAPPET LIFT @ TDC 106°
110°
.060 .063 .067 .070 .073 .077 .081 .084 .088 .092 .096 .100 .104 .108 .112 .116 .120
.048 .051 .054 .057 .060 .063 .067 .070 .073 .077 .081 .084 .088 .092 .096 .100 .104
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.631 .632 .634 .636 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638
.668 .670 .671 .673 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675
.705 .707 .709 .711 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713
Continued on page 37
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
CAMSHAFT TYPE
EHI Rated Duration @ .006" Tappet Lift Journal = F,R,Q,M MI 26.8 (12.9/13.9)
EHX Rated Duration @ .006" Tappet Lift Journal = B,F,R,M MI 29.8 (14.1/15.7)
LOBE #
RATED DURATION
12679 12680 12681 12682 12683 12684 12685 12686 12849 12846 12847 12848 12864 12865 12866 12867 12868 12869 12690 12691 12692 12693 12694 12695 12696 12697 12698 12699 12700 12701 12702 12703 12704 12705 12874 12875 12876 12877 12878
DURATION IN DEGREES @ .050
@ .200
304 306 308 310 312 314 316 318 320 322 324 326
253 255 257 259 261 263 265 267 269 271 273 275
174 176 178 180 181 183 185 187 188 190 192 194
292 294 296 298 300 302 304 306 308 310 312 314 316 318 320 322 324 326 328 330 332 334 336 338 340 342 344
233 235 237 239 241 243 245 247 249 251 253 255 257 259 261 263 265 267 269 271 273 275 277 279 281 283 285
153 155 157 159 161 163 164 166 168 170 172 174 176 177 179 181 183 185 186 188 190 192 193 195 197 199 200
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
106°
110°
.375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375
.124 .128 .132 .136 .140 .144 .148 .152 .155 .159 .163 .166
.108 .112 .116 .120 .124 .128 .132 .136 .139 .143 .147 .151
.638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638
.675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675
.713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713
.373 .374 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375
.082 .085 .090 .093 .096 .100 .105 .108 .112 .116 .120 .124 .128 .132 .136 .140 .144 .147 .151 .155 .159 .162 .166 .169 .173
.069 .071 .076 .078 .082 .085 .090 .093 .097 .100 .105 .108 .112 .116 .120 .124 .128 .131 .135 .139 .143 .147 .150 .154 .158
.634 .636 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638 .638
.671 .673 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675
.709 .711 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713
.375 .375
.176 .180
.161 .165
.638 .638
.675 .675
.713 .713
HYDRAULIC ROLLER
EHI EHX HYDRAULIC ROLLERS Continued
HYDRAULIC ROLLER
HYDRAULIC ROLLER
FHI FHX HYDRAULIC ROLLERS The FHI (intake) and FHX (exhaust) are slightly smoother than the EHI and EHX series. These are very good up to 7500 RPM with light (LS3, hollow or titanium) valves or 7000 RPM with solid steel valves and conical (Part #7228/7230) or Part #26926 valve springs.
CAMSHAFT TYPE
FHI Rated Duration @ .006” Tappet Lift Journal = B, F, R, M MI 26.5 (12.8/13.7)
FHX Rated Duration @ .006” Tappet Lift Journal = B, F, R, M MI 27.2 (12.9/14.3)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
14310 14311 14312 14313 14314 14315 14316 14317 14318 14319 14320
278 280 282 284 286 288 290 292 294 296 298
227 229 231 233 235 237 239 241 243 245 247
151 153 155 157 159 160 162 164 166 168 169
.384 .385 .386 .387 .388 .389 .390 .390 .390 .390 .390
.071 .074 .078 .082 .085 .089 .093 .097 .101 .105 .109
.058 .061 .064 .067 .071 .074 .078 .082 .085 .089 .093
.653 .655 .656 .658 .660 .661 .663 .663 .663 .663 .663
.691 .693 .695 .697 .698 .700 .702 .702 .702 .702 .702
.730 .732 .733 .735 .737 .739 .741 .741 .741 .741 .741
14321 14322 14323 14324
300 302 304 306
249 251 253 255
171 173 175 177
.390 .390 .390 .390
.112 .116 .120 .124
.097 .100 .104 .108
.663 .663 .663 .663
.702 .702 .702 .702
.741 .741 .741 .741
14334 14335 14336 14337 14338 14339 14340 14341 14342 14343 14344 14345 14346 14347 14348 14349 14350
290 292 294 296 298 300 302 304 306 308 310 312 314 316 318 320 322
236 238 240 242 244 246 248 250 252 254 256 258 260 262 264 266 268
158 160 162 164 166 168 170 171 173 175 177 179 180 182 184 186 188
.381 .382 .383 .384 .385 .386 .387 .388 .389 .389 .389 .389 .389 .389 .389 .389 .389
.088 .092 .096 .100 .103 .107 .111 .115 .119 .123 .127 .131 .135 .139 .143 .147 .150
.074 .078 .081 .085 .088 .092 .096 .099 .103 .107 .111 .115 .119 .123 .126 .130 .134
.648 .649 .651 .653 .655 .656 .658 .660 .661 .661 .661 .661 .661 .661 .661 .661 .661
.686 .688 .689 .691 .693 .695 .697 .698 .700 .700 .700 .700 .700 .700 .700 .700 .700
.724 .726 .728 .730 .732 .733 .735 .737 .739 .739 .739 .739 .739 .739 .739 .739 .739
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The DHI (intake) and DHX (exhaust) Series are a hybrid hydraulic or tight lash solid roller design, based primarily on performance without compromise for noise concerns. These are intended for race applications that may see some street use or for other special applications. 26 MAI intake and 29 MAI exhaust. 55mm Journal MINIMUM. CAMSHAFT TYPE
DHI Rated Duration @ .006" Tappet Lift Journal = R,Q,M… MI 26.2 (12.6/13.6)
DHX Rated Duration @ .006" Tappet Lift Journal = B,F,R,M MI 29.3 (13.9/15.4)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
13596 13598 12600 12602 12608 12610 12612 12614
267 271 275 279 283 287 291 295
217 221 225 229 233 237 241 245
144 148 152 156 160 164 167 171
.377 .381 .385 .389 .393 .397 .397 .397
.057 .064 .071 .078 .085 .093 .102 .110
.045 .051 .057 .064 .071 .078 .085 .093
.603 .610 .616 .622 .629 .635 .635 .635
.641 .648 .655 .661 .668 .675 .675 .675
.679 .686 .693 .700 .707 .715 .715 .715
12616 12618 12104 12106 12108 12110 12112 13634 13636 13638 13640 13642
299 303 307 311 315 319 323 327 331 335 339 343
249 253 257 261 265 269 273 277 281 285 289 293
175 178 182 186 189 193 197 199 203 206 210 214
.397 .397 .397 .397 .397 .397 .397 .397 .397 .397 .397 .397
.118 .127 .136 .144 .152 .160 .168 .175 .183 .189 .196 .203
.102 .110 .118 .127 .135 .143 .152 .159 .167 .173 .181 .188
.635 .635 .635 .635 .635 .635 .635 .635 .635 .635 .635 .635
.675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675
.715 .715 .715 .715 .715 .715 .715 .715 .715 .715 .715 .715
13632 12642 12644 12646 12630 12632 12634 12636 12638 12134 12136 12138 12140 12142 13644 13646 13648 13650 13652
289 293 297 301 305 309 313 317 321 325 329 333 337 341 345 349 353 357 361
231 235 239 243 247 251 255 259 263 267 271 275 279 283 287 291 295 299 303
154 158 162 166 170 174 178 182 185 189 193 196 200 204 207 210 214 218 221
.381 .385 .389 .393 .397 .397 .397 .397 .397 .397 .397 .397 .397 .397 .397 .397 .397
.080 .087 .095 .102 .110 .118 .126 .135 .144 .152 .160 .168 .176 .184 .190 .197 .204
.067 .073 .080 .087 .094 .102 .110 .119 .127 .135 .143 .152 .160 .168 .174 .182 .189
.610 .616 .622 .629 .635 .635 .635 .635 .635 .635 .635 .635 .635 .635 .635 .635 .635
.648 .655 .661 .668 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675 .675
.686 .693 .700 .707 .715 .715 .715 .715 .715 .715 .715 .715 .715 .715 .715 .715 .715
.397 .397
.210 .216
.196 .202
.635 .635
.675 .675
.715 .715
LOBE LIFT
HYDRAULIC ROLLER
DHI DHX HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
EPM EPX ULTRA RPM HYDRAULIC ROLLERS The EMP (intake) and EPM (exhaust) were developed specifically for 9000 RPM plus hydraulic roller applications using COMP Cams® Conical Valve Springs (Part #7228/7230 ), short travel lifters and a lightweight valve. Will go above 8500 RPM with the heavier Part #26926 valve springs. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
EPM Rated Duration @ .006” Tappet Lift Journal = B, F, R, M MI 31.7 (15.4/16.3)
14722 14723 14724 14725 14726
321 323 325 327 329
260 262 264 266 268
169 171 173 175 177
.355 .355 .355 .355 .355
.124 .128 .131 .135 .138
.110 .113 .117 .120 .124
.568 .568 .568 .568 .568
.604 .604 .604 .604 .604
.639 .639 .639 .639 .639
14735
338
276
182
.355
.150
.137
.568
.604
.639
14736
340
278
184
.355
.154
.140
.568
.604
.639
14727
342
280
186
.355
.157
.143
.568
.604
.639
EPM Rated Duration @ .006” Tappet Lift
13770
325
264
177
.393
.132
.117
.629
.668
.707
13772
329
268
180
.393
.140
.125
.629
.668
.707
EPX Rated Duration @ .006” Tappet Lift
13785
338
276
187
.393
.153
.139
.629
.668
.707
13787
342
280
190
.393
.160
.146
.629
.668
.707
EPX Rated Duration @ .006” Tappet Lift Journal = B, F, R, M MI 31.9 (15.5/16.4)
LOBE LIFT
DTL HYDRAULIC ROLLER The DTL Hydraulic Roller designs are intended for high lift and high RPM with light valves, COMP .750" wheel Sportsman Series Hydraulic Roller Lifters, Dual Conical Valve Springs and 1.7:1 to 1.8:1 ratios. CAMSHAFT TYPE
DTL Rated Duration @ .006"Tappet Lift Journal = R,Q,M… MI 26.4 (13.0/13.4)
LOBE #
RATED DURATION
13976 13978 13980 13982 13984 13986 13988 13990 13992 13994
285 289 293 297 301 305 309 313 317 321
DURATION IN DEGREES @ .050
@ .200
235 239 243 247 251 255 259 263 267 271
162 166 170 174 177 181 185 189 193 197
LOBE LIFT
.432 .436 .440 .444 .444 .444 .444 .444 .444 .444
TAPPET LIFT @ TDC 106°
110°
.088 .096 .104 .113 .121 .130 .139 .148 .156 .165
.074 .081 .088 .096 .104 .113 .121 .130 .139 .147
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.691 .698 .704 .710 .710 .710 .710 .710 .710 .710
.734 .741 .748 .755 .755 .755 .755 .755 .755 .755
.778 .785 .792 .799 .799 .799 .799 .799 .799 .799
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The Cheater HR Lift Rule profiles can be run with either hydraulic roller lifters or with solid roller lifters and tight (.010" to .016") lash settings. These are very popular in Mustang lift rule class racing. These lobes are very aggressive and are "race only" designed lobes. CAMSHAFT TYPE
Cheater HR Lift Rule Rated Duration @ .006" Tappet Lift RACE ONLY! MI 29.1 (14.2/14.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
3390 3391 3392 3393 3394 3395 3396 3397 3335 3496 3497 3498
289 291 293 295 297 299 301 303 321 325 327 329
236 238 240 242 244 246 248 250 268 272 274 276
148 150 152 154 156 158 160 162 180 184 186 188
.312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312
.085 .088 .091 .095 .098 .102 .105 .109 .142 .149 .153 .157
.072 .075 .078 .081 .085 .088 .091 .095 .127 .134 .138 .142
.468 .468 .468 .468 .468 .468 .468 .468 .468 .468 .468 .468
.499 .499 .499 .499 .499 .499 .499 .499 .499 .499 .499 .499
.530 .530 .530 .530 .530 .530 .530 .530 .530 .530 .530 .530
3336 3338 3337 3339
307 311 319 329
254 258 266 270
166 170 178 182
.316 .316 .316 .316
.116 .123 .138 .146
.102 .109 .123 .139
.474 .474 .474 .474
.506 .506 .506 .506
.537 .537 .537 .537
3284 3282 3285 3283
307 311 319 323
254 258 266 270
167 171 179 183
.323 .323 .323 .323
.116 .124 .139 .146
.102 .109 .124 .131
.485 .485 .485 .485
.517 .517 .517 .517
.549 .549 .549 .549
3299 3297 3298
289 297 305
236 244 252
150 158 166
.329 .329 .329
.085 .098 .113
.072 .085 .098
.494 .494 .494
.526 .526 .526
.559 .559 .559
3295 3296
297 301
244 248
159 163
.334 .334
.099 .106
.085 .092
.501 .501
.534 .534
.568 .568
3404 3400 3398 3384 3399 3385 3386 3387 3388 3389 3405
285 289 293 297 301 305 309 313 317 321 325
232 236 240 244 248 252 256 260 264 268 272
147 151 155 159 163 167 171 175 179 183 187
.341 .341 .341 .341 .341 .341 .341 .341 .341 .341 .341
.078 .085 .091 .098 .106 .113 .120 .128 .136 .143 .151
.065 .072 .078 .085 .091 .098 .106 .113 .120 .128 .136
.512 .512 .512 .512 .512 .512 .512 .512 .512 .512 .512
.546 .546 .546 .546 .546 .546 .546 .546 .546 .546 .546
.580 .580 .580 .580 .580 .580 .580 .580 .580 .580 .580
3288 3286
307 311
254 258
171 175
.365 .365
.118 .125
.103 .110
.548 .548
.584 .584
3289 3287
319 323
266 270
183 187
.365 .365
.141 .149
.125 .133
.548 .548
.584 .584
.621 .621 .621 .621
LOBE LIFT
HYDRAULIC ROLLER
CHEATER HR LIFT RULE COMPETITION HYDRAULIC ROLLERS
HYDRAULIC ROLLER MUSTANG R LIFT RULE COMPETITION HYDRAULIC ROLLERS
HYDRAULIC ROLLER
These are very similar to the Cheater HR series but more aggressive off the seat and provide more area. CAMSHAFT TYPE
Mustang R Lift Rule Rated Duration @ .006" Tappet Lift RACE ONLY! MI 25.9(12.7/13.2)
LOBE #
RATED DURATION
3329 3330 3331 3332 3333 3334
273 279 285 291 297 303
DURATION IN DEGREES @ .050
@ .200
224 230 236 242 248 254
140 145 149 153 158 162
LOBE LIFT
.312 .312 .312 .312 .312 .312
TAPPET LIFT @ TDC 106°
110°
.069 .079 .090 .101 .111 .121
.056 .065 .076 .086 .097 .107
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.468 .468 .468 .468 .468 .468
.499 .499 .499 .499 .499 .499
.530 .530 .530 .530 .530 .530
ESI ESX STOCKER HYDRAULIC ROLLERS The ESI/ESX & EKI/EKX lobes are stocker versions of the EHI/EHX designs. CAMSHAFT TYPE
ESI Rated Duration @ .006" Tappet Lift MI 26.8 (12.9/13.9)
LOBE #
RATED DURATION
13196 13600
DURATION IN DEGREES @ .050
@ .200
258 270
207 219
128 142
12926
318
267
12688 12689 12655 12656 12657 12658 12927 12929
298 300 302 306 310 314 322 326
12706 12707
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.326 .342
.042 .060
.032 .048
.522 .547
.554 .581
.587 .616
175
.297
.143
.129
.475
.505
.535
247 249 251 255 259 263 271 275
161 163 164 168 172 175 180 184
.306 .306 .306 .306 .306 .306 .306 .306
.110 .114 .177 .125 .132 .139 .150 .156
.095 .099 .102 .110 .117 .124 .136 .143
.490 .490 .490 .490 .490 .490 .490 .490
.520 .520 .520 .520 .520 .520 .520 .520
.551 .551 .551 .551 .551 .551 .551 .551
298 302
247 251
161 164
.314 .314
.110 .117
.095 .102
.502 .502
.534 .534
.565 .565
12708
282
231
148
.323
.801
.664
.517
.549
.581
13686 13688 13690 13692
278 286 294 302
224 236 242 250
147 154 161 169
.353 .353 .353 .353
.072 .086 .101 .117
.058 .072 .086 .101
.565 .565 .565 .565
.600 .600 .600 .600
.635 .635 .635 .635
12924 12916 12917 12918 12919 12920 12923 12932 12933
314 318 322 324 326 328 330 332 334
263 267 271 273 275 277 279 281 283
184 188 191 193 195 197 199 201 202
.354 .354 .354 .354 .354 .354 .354 .354 .354
.144 .153 .158 .164 .168 .171 .175 .179 .182
.127 .137 .142 .148 .152 .156 .160 .163 .167
.566 .566 .566 .566 .566 .566 .566 .566 .566
.602 .602 .602 .602 .602 .602 .602 .602 .602
.637 .637 .637 .637 .637 .637 .637 .637 .637
13682 13816
298 314
246 263
166 184
.360 .360
.109 .144
.093 .127
.576 .576
.612 .612
.648 .648
13751 13752
282 286
230 234
151 155
.363 .363
.078 .086
.065 .072
.581 .581
.617 .617
.653 .653
Continued on page 43
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
ESI ESX STOCKER HYDRAULIC ROLLERS Continued
ESI Rated Duration @ .006” Tappet Lift MI 26.8 (12.9/13.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
13754
294
242
162
.363
.101
.086
.581
.617
.653
12710 13696 13698
302 314 318
251 263 267
172 184 188
.363 .363 .363
.120 .144 .152
.104 .128 .136
.581 .581 .581
.617 .617 .617
.653 .653 .653
13700 13702
320 324
269 273
190 193
.364 .364
.156 .164
.140 .148
.582 .582
.619 .619
.655 .655
13704 12718
328 318
277 267
197 188
.364 .367
.171 .153
.155 .137
.582 .587
.619 .624
.655 .661
12712 12714
310 314
259 263
181 184
.378 0.378
.137 .145
.120 .128
.605 .605
.643 .643
.680 .680
14700 14701 14702 14703 14704 14705 14706
302 304 306 308 310 312 314
251 253 255 257 259 261 263
174 176 178 179 181 183 185
.390 0.390 .390 0.390 0.390 0.390 0.390
.120 .124 .128 .132 .137 .141 .145
.104 .108 .112 .116 .120 .124 .128
.624 .624 .624 .624 .624 .624 .624
.663 .663 .663 .663 .663 .663 .663
.702 .702 .702 .702 .702 .702 .702
13011 13197 12711 12719 12773 12720 12729
272 272 312 328 340 344 348
215 214 253 269 281 285 289
128 128 169 185 197 201 205
.306 .309 .343 .345 .354 .354 .354
.056 .054 .119 .150 .173 .180 .188
.045 .043 .104 .135 .158 .166 .173
.490 .494 .549 .552 .566 .566 .566
.520 .525 .583 .587 .602 .602 .602
.551 .556 .617 .621 .637 .637 .637
13665
322
263
179
0.360
.138
.123
.576
.612
.648
13831 13833
332 336
273 277
190 194
0.360 0.360
.159 .166
.143 .151
.576 .576
.612 .612
.648 .648
LOBE LIFT
12715
327
267
184
0.362
.146
.130
.579
.615
.652
ESX Rated Duration @ .006" Tappet Lift
13707 13709 13711
324 328 332
265 269 273
182 186 190
.363 .363 .363
.143 .151 .159
.128 .135 .143
.581 .581 .581
.617 .617 .617
.653 .653 .653
MI 29.8 (14.1/15.7)
13717 13719
344 348
285 289
201 205
.364 .364
.181 .188
.166 .173
.582 .582
.619 .619
.655 .655
12713
324
265
183
.370
.143
.127
.592
.629
.666
12786 12787
299 311
240 252
160 170
.375 .375
.094 .118
.080 .103
.600 .600
.638 .638
.675 .675
13729 13721 13722 13723 13724 13725
336 340 342 344 346 348
277 281 283 285 287 289
195 199 201 203 204 206
0.382 0.382 0.382 0.382 0.382 0.382
.168 .176 .179 .183 .186 .189
.152 .160 .163 .167 .171 .174
.611 .611 .611 .611 .611 .611
.649 .649 .649 .649 .649 .649
.688 .688 .688 .688 .688 .688
14711
328
269
188
.390
.152
.136
.624
.663
.702
13194 13198
256 258
205 207
126 128
.326 .327
.040 .043
.030 .033
.522 .523
.554 .556
.587 .589
13195 13199
271 273
213 215
128 130
.309 .310
.050 .053
.040 .043
.494 .496
.525 .527
.556 .558
EKI EKX Rated Duration @ .006" Tappet Lift
HYDRAULIC ROLLER
CAMSHAFT TYPE
HYDRAULIC ROLLER
HYDRAULIC ROLLER
LJT HYDRAULIC ROLLERS 2° Offset with stability close to LXL series. CAMSHAFT TYPE
LOBE #
RATED DURATION @.006
LJT Rated Duration @ .006" Tappet Lift
13368 13370 13372 13374 13376
275 279 283 287 291
DURATION IN DEGREES @ .050
@ .200
223 227 231 235 239
146 150 154 158 162
LOBE LIFT
0.360 0.362 0.364 0.366 0.368
TAPPET LIFT @ TDC 106°
110°
.059 .066 .072 .080 .087
.047 .053 .059 .066 .072
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.576 .579 .582 .586 .589
.612 .615 .619 .622 .626
.648 .652 .655 .659 .662
LJF HYDRAULIC ROLLERS 4° Offset, much smoother than LSK series. CAMSHAFT TYPE
LOBE #
RATED DURATION @.006
LJF Rated Duration @ .006" Tappet Lift
13380 13382 13384
277 281 285
DURATION IN DEGREES @ .050
@ .200
227 231 235
151 155 158
LOBE LIFT
0.365 0.367 0.369
TAPPET LIFT @ TDC 106°
110°
.061 .068 .075
.049 .055 .061
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.584 .587 .590
.621 .624 .627
.657 .661 .664
EZJ HYDRAULIC ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION @.006
EZJ Rated Duration @ .006" Tappet Lift
13258 13149 13150 13151
278 282 286 390
DURATION IN DEGREES @ .050
@ .200
227 231 235 239
152 156 160 164
LOBE LIFT
0.368 0.372 0.376 0.380
TAPPET LIFT @ TDC 106°
110°
.066 .073 .080 .088
.053 .059 .066 .073
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.589 .595 .602 .608
.626 .632 .639 .646
.662 .670 .677 .684
EFJ HYDRAULIC ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION @.006
EFJ Rated Duration @ .006" Tappet Lift
13248 13249
DURATION IN DEGREES @ .050
@ .200
282
231
157
286
235
161
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
0.372
.066
.053
.595
.632
.670
0.376
.073
.059
.602
.639
.677
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The DSI , DJI and DJX lobes are stocker versions of the DHI/DHX designs. CAMSHAFT TYPE
DSI Rated Duration @ .006" Tappet Lift MI 26.2 (12.6/13.6) DJI DJX Rated Duration @ .006" Tappet Lift
LOBE #
RATED DURATION
13010 12662 12914 12922 12915
DURATION IN DEGREES @ .050
@ .200
255 279 315 319 319
205 229 265 269 269
128 149 187 191 191
13592
311
260
13595
333
274
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.324 .323 .372 .367 .372
.039 .078 .150 .158 .158
.030 .063 .134 .142 .142
.486 .485 .558 .551 .558
.518 .517 .595 .587 .595
.551 .549 .632 .624 .632
184
.389
.141
.124
.584
.622
.661
194
.389
.165
.148
.584
.622
.661
CEI STOCKER HYDRAULIC ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
CEI Rated Duration @ .006" Tappet Lift
13602
271
DURATION IN DEGREES @ .050
@ .200
219
141
LOBE LIFT
.342
TAPPET LIFT @ TDC 106°
110°
.060
.048
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.547
.581
.616
CZK HYDRAULIC ROLLERS The CZK is a stocker version of the CSZ. CAMSHAFT TYPE
LOBE #
RATED DURATION
CZK Rated Duration @ .020" Tappet Lift MI 26.3 (12.9/13.4)
13070 13071 13072 12537
262 264 266 280
DURATION IN DEGREES @ .050
@ .200
213 215 217 228
134 136 138 147
LOBE LIFT
.316 .316 .316 .323
TAPPET LIFT @ TDC 106°
110°
.051 .054 .057 .075
.040 .042 .045 .061
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.474 .474 .474 .485
.506 .506 .506 .517
.537 .537 .537 .549
DSK HYDRAULIC ROLLERS The DSK is a stocker version of the DSZ. CAMSHAFT TYPE
DSK Rated Duration @ .020" Tappet Lift MI 27.7 (13.4/14.3)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
13800 13801 13802
281 283 285
254 256 258
167 169 171
.306 .306 .306
.122 .126 .130
.107 .111 .115
.459 .459 .459
.490 .490 .490
.520 .520 .520
12594 12597
290 302
262 274
180 192
.323 .323
.139 .163
.123 .148
.485 .485
.517 .517
.549 .549
LOBE LIFT
HYDRAULIC ROLLER
DSI STOCKER HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
FSHR STOCKER HYDRAULIC ROLLER Very quick hydraulic roller stocker. CAMSHAFT TYPE
LOBE #
RATED DURATION
FSH Rated Duration @ .006" Tappet Lift MI 24.4 (12.0/12.4)
3576 3577 3578 3579 3580
FSX Rated Duration @ .006" Tappet Lift MI 24.5 (12.1/12.4) FHL Rated Duration @ .006" Tappet Lift Q Size MI 24.0 (11.9/12.1)
DURATION IN DEGREES @ .050
@ .200
301 303 305 307 309
256 258 260 262 264
170 172 174 176 178
3561
298
252
3582 3584 3585
279 283 285
3586 3588
287 291
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.292 .292 .292 .292 .292
.129 .133 .137 .140 .144
.114 .118 .122 .126 .129
.438 .438 .438 .438 .438
.467 .467 .467 .467 .467
.496 .496 .496 .496 .496
166
.292
.123
.108
.438
.467
.496
235 239 241
164 168 170
.378 .378 .378
.095 .105 .109
.079 .087 .092
.567 .567 .567
.605 .605 .605
.643 .643 .643
243 247
172 176
.378 .378
.113 .122
.096 .104
.567 .567
.605 .605
.643 .643
XTREME ENERGY™ HARLEY HYDRAULIC ROLLERS Designed to maximize torque, acceleration and throttle response for V-twins while providing excellent high RPM horsepower. A faster valve opening increases engine vacuum and enhances throttle response, providing improved roll on power. Special closing ramps close the valve sooner, providing more cylinder pressure and torque without resulting in excessive valve train noise. The faster Xtreme Energy™ ramps achieve maximum velocity sooner, increasing the area under the lift curve and providing maximum airflow and horsepower. CAMSHAFT TYPE
Xtreme Energy™ Harley Rated Duration @ .053" Tappet Lift MI 30.2 (14.8/15.4)
LOBE #
3822 3809 3810 3823 3832 3824 3833 3825 3834 3826 3816 3835 3827 3817 3818 3819
DURATION IN DEGREES @ .053
@ .200
228 230 236 236 244 244 252 252 260 260 264 268 268 268 272 276
148 147 153 155 160 162 167 169 174 176 180 181 183 183 187 191
LOBE LIFT
.360 .346 .350 .360 .350 .360 .350 .360 .350 .360 .370 .350 .360 .370 .370 .370
TAPPET LIFT @ TDC 98°
102°
106°
.103 .106 .117 .118 .134 .134 .149 .149 .161 .163 .170 .174 .176 .177 .184 .191
.089 .091 .102 .103 .118 .118 .132 .132 .146 .147 .156 .160 .162 .162 .170 .176
.076 .079 .088 .089 .103 .103 .118 .118 .131 .133 .140 .146 .147 .147 .155 .162
THEORETICAL VALVE LIFT ROCKER RATIO 1.625 1.65
.585 .562 .569 .585 .569 .585 .569 .585 .569 .585 .601 .569 .585 .601 .601 .601
.594 .571 .578 .594 .578 .594 .578 .594 .578 .594 .611 .578 .594 .611 .611 .611
COMPCAMS.COM CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
HYDRAULIC ROLLER
V-THUNDER TWIN CAM HYDRAULIC ROLLERS
Powerful, quiet and reliable – COMP Cams® V-Thunder hydraulic roller designs maximize torque, acceleration and throttle response for Twin Cam V-Twins while providing excellent high RPM horsepower. Specific designs for intake and exhaust maximize performance. CAMSHAFT TYPE
LOBE #
V-Thunder Twin Int. Rated Duration @ .053" Tappet Lift
23010 23012 23014 23016 23018
CAMSHAFT TYPE
LOBE #
V-Thunder Twin Exh. Rated Duration @ .053" Tappet Lift
23031 23033 23035 23037 23039
DURATION IN DEGREES @ .053
@ .200
226 234 242 250 258
143 151 157 166 174
DURATION IN DEGREES @ .053
@ .200
234 242 250 258 266
150 156 163 172 181
LOBE LIFT
.350 .350 .350 .363 .375
LOBE LIFT
.350 .350 .350 .363 .375
TAPPET LIFT @ TDC 98°
102°
106°
.099 .114 .127 .143 .159
.085 .099 .113 .128 .143
.072 .085 .099 .113 .128
TAPPET LIFT @ TDC 98°
102°
106°
.113 .127 .141 .156 .172
.099 .113 .127 .141 .157
.086 .099 .112 .127 .142
THEORETICAL VALVE LIFT ROCKER RATIO 1.625 1.65
.569 .569 .569 .590 .609
.599 .599 .599 .621 .641
THEORETICAL VALVE LIFT ROCKER RATIO 1.625 1.65
.569 .569 .569 .590 .609
.599 .599 .599 .621 .641
THUMPR™ TWIN CAM HYDRAULIC ROLLERS COMP Cams® Thumpr™ lobe profiles are designed to optimize character and sound while providing excellent stability and a very wide power range. These Thumpr™ designs were developed specifically for the Twin Cam's unique valve train system and engine charateristics. CAMSHAFT TYPE
LOBE #
Thumpr™ Int. Rated Duration @ .053" Tappet Lift
23052 23054 23056 23058 23060
CAMSHAFT TYPE
LOBE #
Thumpr™ Exh. Rated Duration @ .053" Tappet Lift
23073 23075 23077 23079 23081
DURATION IN DEGREES @ .053
@ .200
235 243 251 259 267
152 159 167 175 184
DURATION IN DEGREES @ .053
@ .200
249 257 265 273 281
161 168 177 184 193
LOBE LIFT
.350 .350 .363 .368 .384
LOBE LIFT
.350 .350 .363 .368 .384
TAPPET LIFT @ TDC 98°
102°
106°
.116 .130 .146 .160 .176
.101 .115 .130 .145 .161
.087 .101 .115 .130 .146
TAPPET LIFT @ TDC 98°
102°
106°
.137 .151 .166 .179 .194
.123 .137 .151 .165 .180
.109 .123 .137 .151 .166
THEORETICAL VALVE LIFT ROCKER RATIO 1.625 1.65
.569 .569 .590 .598 .624
.599 .599 .621 .629 .657
THEORETICAL VALVE LIFT ROCKER RATIO 1.625 1.65
.569 .569 .590 .598 .624
.599 .599 .621 .629 .657
SOLID FLAT TAPPET
SOLID FLAT TAPPET
HIGH ENERGY™ & MAGNUM SOLIDS
The High Energy™ Solid is the mechanical version of the High Energy™ Hydraulic. Because these designs incorporate a mechanical (solid) lifter, the valve actuation is quicker than the High Energy™ Hydraulics, thus producing slightly more power than its hydraulic counterpart. The Magnum Solid Lifter Series is designed to allow the valve lash to be varied from .015" to .030". This tuning tool can be used to fine tune any high performance application to a razor sharp edge. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
High Energy™ Rated Duration @ .015" Tappet Lift .842" Min. Dia.
5190 6114 6038
240-3 244-3 264-1
190 200 220
104 108 130
.2660 .2660 .2933
.031 .031 .062
.023 .023 .050
.399 .399 .440
.426 .426 .469
.452 .452 .499
Magnum Rated Duration @ .015" Tappet Lift .842" Min. Dia. MI 37.6 (19.1/18.5)
6017 6002 6007 6003
270-3 282-2 294-3 306-5
224 236 248 260
135 145 154 164
.3120 .3300 .3500 .3700
.064 .082 .096 .119
.054 .069 .084 .100
.468 .495 .525 .555
.499 .528 .560 .592
.530 .561 .595 .629
LOBE LIFT
NEW NOSTALGIA PLUS™ SOLIDS These lobes are designed to mimic the sound of the great engines of the past while improving performance by applying today’s design techniques. The solid lifter design allows more precise valve control and allows further tuning through lash adjustment. When lashed at .015" these designs provide that distinct metallic, mechanical sound made famous by the most powerful of the great factory muscle cars. CAMSHAFT TYPE
LOBE #
RATED DURATION
New Nostalgia Plus™ Rated Duration @ .015" Tappet Lift .842" Min. Dia. MI 28.8 (13.8/15.0)
6068 6069 6070 6071 6072 6073
276 283 284 291 299 309
DURATION IN DEGREES @ .050
@ .200
239 246 247 254 262 272
149 155 158 164 172 183
LOBE LIFT
.320 .317 .336 .332 .342 .366
TAPPET LIFT @ TDC 106°
110°
.094 .104 .108 .118 .132 .150
.080 .090 .094 .104 .118 .136
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.480 .476 .504 .498 .513 .549
.512 .507 .538 .531 .547 .586
.544 .539 .571 .564 .581 .622
XTREME ENERGY™ SOLIDS The Xtreme Energy™ Solids are designed with similar characteristics to the Xtreme Energy™ Hydraulics to maximize torque, acceleration and throttle response while providing even more high RPM horsepower by taking advantage of the increased stability of a solid design. The Xtreme Energy™ Solids have ramps that provide shorter seat timing than all but the most aggressive race solids but feature a special closing section to eliminate excessive noise. CAMSHAFT TYPE
Xtreme Energy™ Rated Duration @ .015" Tappet Lift .842" Min. Dia. MI 28.8 (13.8/15.0)
LOBE #
RATED DURATION
6052 6083 6053 6084 6054 6055 6056 6057 6089 6059 6091 6061
256 262 262 268 268 274 280 282 290 290 298 298
DURATION IN DEGREES @ .050
@ .200
218 224 224 230 230 236 242 244 252 252 260 260
129 135 135 140 141 147 153 156 164 164 171 172
LOBE LIFT
.311 .313 .319 .313 .326 .335 .341 .347 .352 .361 .352 .373
TAPPET LIFT @ TDC 106°
110°
.057 .067 .067 .077 .077 .087 .097 .101 .115 .115 .129 .129
.046 .054 .054 .064 .064 .073 .083 .087 .101 .101 .155 .155
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.467 .470 .479 .470 .489 .503 .512 .521 .528 .542 .528 .560
.498 .501 .510 .501 .522 .536 .546 .555 .563 .578 .563 .597
.529 .532 .542 .532 .554 .570 .580 .590 .598 .614 .598 .634
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SOLID FLAT TAPPET
SOLID FLAT TAPPET
THUMPR™ SOLIDS
The Thumpr™ lobe profiles are designed to optimize the character and sound, while providing excellent stability and a very wide power range in solid flat tappet applications. Specific profiles are developed uniquely for the intake and exhaust. CAMSHAFT TYPE
LOBE #
RATED DURATION
Thumpr Int. Rated Duration @ .015" Tappet Lift .842" Min. Dia. MI 28.9 (13.3/15.6)
6440
™
Thumpr™ Exh. Rated Duration @ .015" Tappet Lift .842" Min. Dia. MI 32.0 (13.3/18.7)
DURATION IN DEGREES @ .050
@ .200
268
231
140
6442
276
239
6444
284
6453
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.319
.079
.066
.479
.510
.542
148
.326
.092
.079
.489
.522
.554
247
156
.333
.106
.092
.500
.533
.566
279
237
145
.317
.087
.074
.476
.507
.539
6455
287
245
152
.313
.101
.088
.470
.501
.532
6457
295
253
160
.320
.115
.101
.480
.512
.544
6459
303
261
168
.327
.128
.115
.491
.523
.556
HIGH TORQUE SOLIDS The High Torque Solid is designed to be used on .842" or larger tappet diameters. These are our most winning, all around solid designs. Tappet acceleration rates are high to produce maximum torque vs. horsepower in an all out racing engine. Works well as exhaust when coupled with TL or XTQ intake designs. CAMSHAFT TYPE
High Torque Rated Duration @ .020" Tappet Lift .842" Min. Dia. .018" Lash MI 36.9 (18.4/18.5)
LOBE #
RATED DURATION
6015 6001 6014 6016 6009 6018 6000 6010 6004 6011 6005
270-1 280-1 285-1 290-1 295-1 300-1 305-1 310-1 310-2 320-1 320-2
DURATION IN DEGREES @ .050
@ .200
235 242 250 255 260 265 270 275 270 283 280
144 152 156 160 164 169 175 177 175 184 182
LOBE LIFT
.330 .338 .355 .360 .370 .375 .385 .390 .375 .392 .375
TAPPET LIFT @ TDC 106°
110°
.082 .094 .104 .111 .119 .126 .136 .142 .143 .163 .156
.068 .080 .092 .098 .100 .113 .123 .129 .129 .149 .142
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.495 .507 .533 .540 .555 .563 .578 .585 .563 .588 .563
.528 .541 .568 .576 .592 .600 .616 .624 .600 .627 .600
.561 .575 .604 .612 .629 .638 .655 .663 .638 .666 .638
HIGH RPM SOLIDS These designs are to be used primarily on motors with 1.7 or greater rocker ratios. Design rates have been carefully chosen to allow these designs to run higher engine speeds than their high torque counterparts. CAMSHAFT TYPE
High RPM Rated Duration @ .020" Tappet Lift .842" Min. Dia. .018" Lash MI 37.6 (17.9/19.7)
LOBE #
RATED DURATION
6019 6012 6013 6006 6027 6028 6029
284-1 294-1 304-1 314-1 324-1 328-3 334-2
DURATION IN DEGREES @ .050
@ .200
246 256 266 276 286 290 296
152 162 172 182 191 184 200
LOBE LIFT
.326 .341 .356 .371 .386 .400 .400
TAPPET LIFT @ TDC 106°
110°
.097 .114 .131 .148 .165 .168 .182
.083 .100 .117 .134 .151 .154 .168
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.489 .512 .534 .557 .579 .600 .600
.522 .546 .570 .594 .618 .640 .640
.554 .580 .605 .631 .656 .680 .680
SOLID FLAT TAPPET HI-TECH™ SOLIDS
SOLID FLAT TAPPET
These designs represent an excellent mix of horsepower, torque, RPM and durability. They work with .842" or larger diameter tappets, producing very good results. These have been used successfully in everything from Sprint Cup and endurance applications to drag racing and hobby stocks. CAMSHAFT TYPE
Hi-Tech™ Rated Duration @ .020" Tappet Lift .842" Min. Dia. .018" Lash MI 38.2 (19.1/19.1)
LOBE #
RATED DURATION
6030 6031 6032 6033 6034 6035 6036
300-4 304-4 308-4 312-4 316-4 320-4 324-4
DURATION IN DEGREES @ .050
@ .200
262 266 270 274 278 282 286
166 170 174 177 181 186 192
LOBE LIFT
.365 .370 .375 .380 .385 .390 .400
TAPPET LIFT @ TDC 106°
110°
.121 .128 .134 .140 .147 .154 .163
.108 .114 .120 .127 .133 .140 .149
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.548 .555 .563 .570 .578 .585 .600
.584 .592 .600 .608 .616 .624 .640
.621 .629 .638 .646 .655 .663 .680
TIGHT LASH SOLIDS The designs for the tight lash solid .842" diameter lifters feature shorter seat timing and more area than other similar designs. Good in restricted or open rules circle track racing. The larger designs perform very well in drag racing. CAMSHAFT TYPE
Tight Lash Rated Duration @ .020" Tappet Lift .842" Min. Dia. .018" Lash MI 28.1 (13.4/14.7)
LOBE #
RATED DURATION
6312 6313 6314 6301 6302 6303 6304 6305 6306 6307 6308 6310
TL264 TL268 TL272 TL276 TL280 TL284 TL288 TL292 TL296 TL300 TL304 TL312
DURATION IN DEGREES @ .050
@ .200
234 238 242 246 250 254 259 262 266 270 274 282
143 147 151 154 158 162 166 169 173 177 181 191
LOBE LIFT
.3300 .3350 .3400 .3476 .3534 .3600 .3667 .3734 .3800 .3867 .3934 .4067
TAPPET LIFT @ TDC 106°
110°
.083 .089 .096 .102 .109 .114 .121 .127 .133 .139 .143 .162
.070 .077 .083 .089 .095 .101 .108 .113 .119 .125 .130 .148
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.495 .503 .510 .521 .530 .540 .550 .560 .570 .580 .590 .610
.528 .536 .544 .556 .565 .576 .587 .597 .608 .619 .629 .651
.561 .570 .578 .591 .601 .612 .623 .635 .646 .657 .669 .691
HIGH RPM II SOLIDS High RPM Series II Solids are more aggressive than the original High RPM and Hi-Tech™ Solid profiles. They are designed for use in applications that need the area of an XTQ style lobe, but are required to operate at higher engine speeds than that fast of a ramp will allow. HTL Lifters are highly recommended with these profiles. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
High RPM II Rated Duration @ .020" Tappet Lift .842" Min. Dia. .018" Lash MI 30.3 (13.9/16.4)
LOBE #
RATED DURATION
6327 6328 6329 6330 6331 6332 6333 6334 6335 6336
274 278 282 287 291 295 299 303 307 311
DURATION IN DEGREES @ .050
@ .200
244 248 252 256 260 264 268 272 276 280
155 159 163 167 171 175 179 183 187 191
LOBE LIFT
.355 .359 .363 .367 .371 .376 .380 .384 .389 .393
TAPPET LIFT @ TDC 106°
110°
.100 .107 .114 .121 .128 .135 .142 .149 .156 .163
.086 .093 .100 .107 .114 .121 .128 .135 .142 .149
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.533 .539 .545 .551 .557 .564 .570 .576 .584 .590
.568 .574 .581 .587 .594 .602 .608 .614 .622 .629
.604 .610 .617 .624 .631 .639 .646 .653 .661 .668
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
XTQ SOLIDS
CAMSHAFT TYPE
XTQ Rated Duration @ .020" Tappet Lift .842" Min. Dia. .018" Lash MI 28.8 (13.8/15.0)
LOBE #
RATED DURATION
6275 6276 6277 6258 16258 6259 16259 6260 16260 6261 16261 6262 16262 6263 16263 6264 16264 6265 16265 6266 16266 6267 16267 6268 16268 6269 6270
248XTQ 254XTQ 260XTQ 266XTQ 268XTQ 270XTQ 272XTQ 274XTQ 276XTQ 278XTQ 280XTQ 282XTQ 284XTQ 286XTQ 288XTQ 290XTQ 292XTQ 294XTQ 296XTQ 298XTQ 300XTQ 302XTQ 304XTQ 306XTQ 308XTQ 310XTQ 314XTQ
DURATION IN DEGREES @ .050
@ .200
218 224 230 236 238 240 242 244 246 248 250 252 254 256 258 260 262 264 266 268 270 272 274 276 278 280 284
129 135 141 147 150 152 154 156 158 160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192 196
LOBE LIFT
.310 .318 .325 .334 .337 .340 .343 .346 .350 .354 .357 .360 .363 .366 .369 .372 .375 .378 .382 .386 .389 .392 .395 .398 .401 .404 .410
TAPPET LIFT @ TDC 106°
110°
.057 .067 .077 .087 .090 .094 .097 .101 .104 .108 .111 .115 .118 .122 .125 .129 .132 .136 .139 .143 .146 .150 .153 .157 .160 .164 .171
.046 .054 .064 .073 .077 .080 .083 .087 .090 .094 .097 .101 .104 .108 .111 .115 .118 .122 .125 .129 .132 .136 .139 .143 .146 .150 .157
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.465 .477 .488 .501 .506 .510 .515 .519 .525 .531 .536 .540 .545 .549 .554 .558 .563 .567 .573 .579 .584 .588 .593 .597 .602 .606 .615
.496 .509 .520 .534 .539 .544 .549 .554 .560 .566 .571 .576 .581 .586 .590 .595 .600 .605 .611 .618 .622 .627 .632 .637 .642 .646 .656
.527 .541 .553 .568 .573 .578 .583 .588 .595 .602 .607 .612 .617 .622 .627 .632 .638 .643 .649 .656 .661 .666 .672 .677 .682 .687 .697
SOLID FLAT TAPPET
The XTQ Solid design sets the new standard for aggressive .842" lifter designs. With seat timing as low as our original tight lash series and more area than our famous "XX" .875" series, these designs give their racers a clear edge over the competition. Smaller designs are intended for restricted applications; larger designs can be used in open applications with an optimized valve spring selection and lighter valve train. NOTE: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative.
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SOLID FLAT TAPPET
SOLID FLAT TAPPET XTX SOLIDS The XTX Solids are an excellent choice for exhaust profiles to be coupled with either the XTQ or MH profiles or can be used for both intake and exhaust in high RPM applications. The closing side is similar to the High Torque profiles, but this design incorporates a faster opening side to increase torque and provide more area. The lifts are slightly less than the High Torque profiles to increase the nose radius and reduce wear. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
XTX Rated Duration @ .020" Tappet Lift .842" Min. Dia. .018" Lash MI 34.0 (16.2/17.8)
LOBE #
RATED DURATION
6400 6401 6402 6403 6404 6405 6406 6407 6408 6409 6410 6411 6412 6413 6414 6415 6416 6417 6418 6419 6420
272 274 276 278 280 282 284 286 288 290 292 294 296 298 300 302 304 306 308 310 312
DURATION IN DEGREES @ .050
@ .200
238 240 242 244 246 248 250 252 254 256 258 260 262 264 266 268 270 272 274 276 278
145 147 149 151 153 155 157 159 161 163 165 167 169 171 173 175 177 179 181 183 185
LOBE LIFT
.335 .338 .341 .344 .347 .349 .351 .353 .355 .357 .359 .361 .363 .365 .367 .369 .371 .373 .375 .377 .379
TAPPET LIFT @ TDC 106°
110°
.086 .089 .092 .095 .099 .102 .105 .108 .112 .115 .118 .122 .125 .128 .132 .135 .139 .142 .146 .149 .153
.074 .077 .080 .083 .086 .089 .092 .095 .098 .102 .105 .108 .111 .115 .118 .121 .125 .128 .132 .135 .139
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.503 .507 .512 .516 .521 .524 .527 .530 .533 .536 .539 .542 .545 .548 .551 .554 .557 .560 .563 .566 .569
.536 .541 .546 .550 .555 .558 .562 .565 .568 .571 .574 .578 .581 .584 .587 .590 .594 .597 .600 .603 .606
.570 .575 .580 .585 .590 .593 .597 .600 .604 .607 .610 .614 .617 .621 .624 .627 .631 .634 .638 .641 .644
JF .330" LIFT SOLIDS The JF .330" Lift Solids are designed for use in lift rule classes that require higher RPM or lighter springs than needed with the Max Area Lift Rule Series. The JF designs are also good for use with very high rockers in more open applications. Can also be run in hydraulic lifter applications. CAMSHAFT TYPE
JF .330" Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia. MI 29.3 (14.2/15.1)
LOBE #
RATED DURATION
6158 6159 6160 6170 6161 6162 6172 6163 6173 6164 6157 6165
269 271 273 275 277 281 283 285 287 289 291 293
DURATION IN DEGREES @ .050
@ .200
240 242 244 246 248 252 254 256 258 260 262 264
149 151 153 155 157 161 163 164 166 167 168 170
LOBE LIFT
.327 .329 .330 .330 .330 .330 .330 .330 .330 .330 .330 .330
TAPPET LIFT @ TDC 106°
110°
.100 .100 .100 .100 .107 .114 .118 .121 .123 .126 .129 .132
.087 .087 .087 .087 .094 .100 .104 .107 .110 .113 .116 .119
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.491 .494 .495 .495 .495 .495 .495 .495 .495 .495 .495 .495
.523 .526 .528 .528 .528 .528 .528 .528 .528 .528 .528 .528
.556 .559 .561 .561 .561 .561 .561 .561 .561 .561 .561 .561
Continued on page 53
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
CAMSHAFT TYPE
JF .330" Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia. MI 29.3 (14.2/15.1)
LOBE #
RATED DURATION
6166 6167 6168 6169 6184 6185 6186 6187 6188
295 297 299 301 303 305 307 309 311
DURATION IN DEGREES @ .050
@ .200
266 268 270 272 274 276 278 280 282
172 174 176 178 180 182 183 185 187
LOBE LIFT
.330 .330 .330 .330 .330 .330 .330 .330 .330
TAPPET LIFT @ TDC 106°
110°
.136 .139 .143 .146 .149 .152 .156 .159 .162
.122 .126 .129 .133 .136 .139 .142 .146 .149
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.495 .495 .495 .495 .495 .495 .495 .495 .495
.528 .528 .528 .528 .528 .528 .528 .528 .528
.561 .561 .561 .561 .561 .561 .561 .561 .561
SOLID FLAT TAPPET
JF .330" LIFT SOLIDS Continued
HF & JF LIFT RULE SOLIDS Based on the JF series except expressly for Lift Rule classes. CAMSHAFT TYPE
LOBE #
RATED DURATION
HF .285" Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia.
16230
JF .308" Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia.
JF .301" Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia.
DURATION IN DEGREES @ .050
@ .200
282
252
148
16231
286
256
16234 16235 16236 16226 16237
279 281 283 285 287
16246 16248
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.285
.110
.097
.428
.456
.485
151
.285
.116
.103
.428
.456
.485
250 252 254 256 258
155 157 158 160 162
.308 .308 .308 .308 .308
.110 .113 .116 .119 .123
.095 .100 .103 .106 .109
.462 .462 .462 .462 .462
.493 .493 .493 .493 .493
.524 .524 .524 .524 .524
295
266
167
.301
.135
.122
.452
.482
.512
299
270
171
.301
.141
.128
.452
.482
.512
JF SOLIDS The JF Solids are higher lift versions of the JF .330" series. These lobes are easier on parts and more stable at high RPM than the TL series. The JF designs are best with 1.65+ rockers in both circle track and drag race applications where durability is required. Can also be run in hydraulic lifter applications. CAMSHAFT TYPE
JF .330" Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia. MI 29.5 (14.3/15.2)
LOBE #
RATED DURATION
16104 16106 16108 16110 16112 16114 16116 16118
275 279 283 287 291 295 299 303
DURATION IN DEGREES @ .050
@ .200
246 250 254 258 262 266 270 274
155 159 163 167 171 175 179 183
LOBE LIFT
.343 .349 .355 .361 .367 .373 .379 .385
TAPPET LIFT @ TDC 106°
110°
.102 .109 .116 .123 .130 .136 .143 .150
.089 .095 .102 .109 .116 .123 .130 .136
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.515 .524 .533 .542 .551 .560 .569 .578
.549 .558 .568 .578 .587 .597 .606 .616
.583 .593 .604 .614 .624 .634 .644 .655
SOLID FLAT TAPPET MAX AREA (MA) SOLIDS
SOLID FLAT TAPPET
The Max Area Series is designed for 2bbl and stock intake applications which are airflow limited. This series of lobes utilizes low seat timing with maximum area under the curve. These lobes perform best with a 1.7 or 1.8 rocker ratio and can be used with an .842" lifter. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
Max Area Rated Duration @ .020" Tappet Lift .842" Min. Dia. MI 26.7 (13.0/13.7)
LOBE #
RATED DURATION
6137 6138 6139 6140 6141 6142 6143 6144 6145 6146 6147 6148 6149 6208 6209 6210 6211 6212 6213 6290 6214 6291 6215 6292 6216 6293 6217 6295 6218 6219 6222
269 271 273 275 277 279 281 283 285 287 289 291 293 MA251-1 MA255-1 MA259-1 MA263-1 MA267-1 MA271-1 MA273-1 MA275-1 MA277-1 MA279-1 MA281-1 MA283-1 MA285-1 MA287-1 MA289-1 MA291-1 MA295-1 MA299-1
DURATION IN DEGREES @ .050
@ .200
242 244 246 248 250 252 254 256 258 260 262 264 266 225 229 232 236 240 244 246 248 250 252 254 256 258 260 262 264 268 272
152 154 156 158 160 162 163 165 167 169 171 172 174 135 139 143 147 151 155 157 159 160 161 162 164 166 168 169 171 176 179
LOBE LIFT
.336 .336 .336 .336 .336 .336 .336 .336 .336 .336 .336 .336 .336 .319 .326 .330 .331 .333 .340 .340 .340 .340 .340 .340 .340 .340 .340 .340 .340 .345 .345
TAPPET LIFT @ TDC 106°
110°
.100 .103 .107 .110 .114 .117 .121 .124 .127 .131 .134 .137 .134 .064 .072 .076 .090 .097 .104 .107 .109 .114 .116 .119 .123 .126 .129 .133 .136 .143 .149
.087 .090 .093 .097 .100 .103 .107 .110 .114 .117 .120 .124 .127 .053 .059 .064 .077 .083 .091 .094 .096 .100 .103 .106 .109 .113 .116 .119 .123 .129 .136
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.504 .504 .504 .504 .504 .504 .504 .504 .504 .504 .504 .504 .504 .479 .489 .495 .497 .500 .510 .510 .510 .510 .510 .510 .510 .510 .510 .510 .510 .518 .518
.538 .538 .538 .538 .538 .538 .538 .538 .538 .538 .538 .538 .538 .510 .522 .528 .530 .533 .544 .544 .544 .544 .544 .544 .544 .544 .544 .544 .544 .552 .552
.571 .571 .571 .571 .571 .571 .571 .571 .571 .571 .571 .571 .571 .542 .554 .561 .563 .566 .578 .578 .578 .578 .578 .578 .578 .578 .578 .578 .578 .587 .587
MAX AREA LIFT RULE SOLIDS The Max Area Lift Rule lobes can be run with solid lifters or Pro Magnum™-style hydraulic lifters. They are more aggressive off the seat than the parent Max Area Series for tighter lash and less rocker. They work well in lift rule oval track, road race and high RPM NHRA Stock Eliminator classes. Will check 21° larger at .006" than .020". Specifically designed to optimize dynamic valve motion and produce maximum power, these lobes use the experience gained from racing the MA profile and the techniques we learn from our Spintron testing to provide the best performance in all lift rule applications. Grouped in lobe lift increments for convenient selection. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
Max Area Low Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia. .010"-.020" Lash MI 26.7 (13.0/13.7)
LOBE #
RATED DURATION
5695 5696 5499 5704 5717 5485 5718 5720
273 277 285 283 265 269 275 279
DURATION IN DEGREES @ .050
@ .200
246 250 258 256 238 242 248 252
124 127 135 142 130 133 140 144
LOBE LIFT
.237 .237 .237 .242 .252 .252 .252 .252
TAPPET LIFT @ TDC 106°
110°
.100 .106 .118 .117 .087 .096 .103 .109
.088 .094 .107 .105 .075 .083 .090 .096
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.356 .356 .356 .363 .378 .378 .378 .378
.379 .379 .379 .387 .403 .403 .403 .403
.403 .403 .403 .411 .428 .428 .428 .428
Continued on page 55
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
MAX AREA LIFT RULE SOLIDS Continued
Max Area Low Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia. .010"-.020" Lash MI 26.7 (13.0/13.7)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
5719
283
256
148
.252
.115
.103
.378
.403
.428
5708
293
266
159
.255
.131
.119
.383
.408
.434
5645 5744 5746 5550 5517 5518 5519 5553 5547 5556 5643 5548 5537 5551 5549
257 261 265 267 269 271 273 274 277 279 281 285 287 289 293
230 234 238 240 242 244 246 248 250 252 254 258 260 262 266
124 129 133 134 138 140 142 142 145 146 148 151 153 155 158
.260 .260 .260 .260 .260 .260 .260 .260 .260 .260 .260 .260 .260 .260 .260
.076 .083 .089 .093 .096 .100 .103 .107 .109 .112 .115 .121 .124 .127 .133
.063 .070 .076 .080 .083 .086 .090 .093 .096 .099 .102 .109 .112 .115 .121
.390 .390 .390 .390 .390 .390 .390 .390 .390 .390 .390 .390 .390 .390 .390
.416 .416 .416 .416 .416 .416 .416 .416 .416 .416 .416 .416 .416 .416 .416
.442 .442 .442 .442 .442 .442 .442 .442 .442 .442 .442 .442 .442 .442 .442
5801 5802
297 301
270 274
161 164
.260 .260
.139 .144
.127 .133
.390 .390
.416 .416
.442 .442
5990 5991 5992 5993 5994 5995 5996 5644 5795 5796 5649 5646 5650 5651 5652 5653 5647 5654 5655 5657
217 221 225 229 233 237 257 265 267 269 273 275 277 281 285 289 291 293 297 301
190 194 198 202 206 210 230 238 240 242 246 248 250 254 258 262 264 266 270 274
99 103 106 110 113 117 131 134 138 141 143 145 146 150 154 159 161 163 167 170
.266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266 .266
.022 .026 .030 .035 .040 .046 .077 .089 .093 .097 .103 .106 .109 .115 .122 .129 .132 .135 .141 .147
.015 .018 .022 .026 .030 .035 .064 .076 .080 .083 .090 .093 .096 .102 .110 .116 .120 .123 .129 .135
.399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399 .399
.426 .426 .426 .426 .426 .426 .426 .426 .426 .426 .426 .426 .426 .426 .426 .426 .426 .426
.452 .452 .452 .452 .452 .452 .452 .452 .452 .452 .452 .452 .452 .452 .452 .452 .452 .452
.426 .426
.452 .452
5692 5694
283 291
256 264
156 165
.273 .273
.121 .134
.108 .121
.410 .410
.437 .437
.464 .464
5894 5885 5886 5887 5888 5798
268 270 272 274 276 278
242 244 246 248 250 252
145 146 148 150 151 153
.274 .274 .274 .274 .274 .274
.097 .100 .104 .107 .110 .117
.084 .087 .090 .094 .097 .104
.411 .411 .411 .411 .411 .411
.438 .438 .438 .438 .438 .438
.466 .466 .466 .466 .466 .466
LOBE LIFT
SOLID FLAT TAPPET
CAMSHAFT TYPE
Continued on page 56
SOLID FLAT TAPPET
SOLID FLAT TAPPET
MAX AREA LIFT RULE SOLIDS Continued CAMSHAFT TYPE
Max Area Low Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia. .010"-.020" Lash MI 26.7 (13.0/13.7)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
5891 5692 5819 5799 5805 5694 5777 5778 5779 5698 5697 5705 5706 5707
280 283 285 287 289 291 292 294 296 297 303 287 295 299
254 256 258 260 262 264 266 268 270 270 276 260 268 272
155 156 158 160 161 165 167 169 170 171 176 160 168 173
.274 .274 .274 .274 .274 .274 .274 .274 .274 .278 .275 .276 .276 .276
.117 .121 .123 .126 .130 .134 .137 .140 .143 .144 .152 .130 .143 .149
.104 .108 .110 .113 .116 .121 .124 .127 .130 .131 .140 .117 .130 .137
.411 .411 .411 .411 .411 .411 .411 .411 .411 .417 .413 .414 .414 .414
.438 .438 .438 .438 .438 .438 .438 .438 .438 .445 .440 .442 .442 .442
.466 .466 .466 .466 .466 .466 .466 .466 .466 .473 .468 .469 .469 .469
5866 5867 5875 5876 5877 5741 5878 5742 5879 5698
264 268 272 274 276 278 280 282 284 297
238 242 246 248 250 252 254 256 258 270
143 146 150 151 153 155 156 256 160 171
.278 .278 .278 .278 .278 .278 .278 .278 .278 .278
.090 .097 .104 .107 .111 .116 .117 .121 .124 .144
.077 .084 .090 .094 .097 .102 .104 .108 .110 .131
.417 .417 .417 .417 .417 .417 .417 .417 .417 .417
.445 .445 .445 .445 .445 .445 .445 .445 .445 .445
.473 .473 .473 .473 .473 .473 .473 .473 .473 .473
5497 5498 5667 5675 5668 5669 5670 5656 5658 5659 5666 5663 5800 5664 5665
249 253 257 261 265 269 273 276 283 286 290 295 297 301 303
222 226 230 234 238 242 246 250 256 260 264 268 270 274 276
128 131 135 138 142 145 148 152 156 161 165 171 173 172 174
.283 .283 .283 .283 .283 .283 .283 .283 .283 .283 .283 .283 .283 .283 .283
.065 .071 .078 .084 .091 .098 .104 .110 .121 .127 .136 .144 .145 .149 .151
.053 .059 .064 .071 .077 .084 .090 .097 .107 .113 .123 .131 .132 .136 .139
.425 .425 .425 .425 .425 .425 .425 .425 .425 .425 .425 .425 .425 .425 .425
.453 .453 .453 .453 .453 .453 .453 .453 .453 .453 .453 .453 .453
.481 .481 .481 .481 .481 .481 .481 .481 .481 .481 .481 .481 .481
.453 .453
.481 .481
5687 5674
299 285
272 258
159 156
.283 .285
.136 .124
.125 .111
.425 .428
.453 .456
.481 .485
5660 5661 5662 5678 5680 5690
283 287 291 279 286 290
256 260 264 252 259 264
162 166 169 152 158 169
.288 .288 .288 .290 .294 .294
.123 .130 .136 .113 .121 .136
.109 .116 .122 .100 .108 .122
.432 .432 .432 .435 .441 .441
.461 .461 .461 .464 .470 .470
.490 .490 .490 .493 .500 .500
LOBE LIFT
Continued on page 57
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
MAX AREA LIFT RULE SOLIDS Continued
Max Area Low Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia. .010"-.020" Lash MI 26.7 (13.0/13.7)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
5679 5691
294 300
267 274
167 178
.296 .297
.134 .152
.121 .139
.444 .446
.474 .475
.503 .505
5792 5793
285 295
258 268
162 176
.298 .298
.125 .144
.112 .130
.447 .447
.477 .477
.507 .507
5892 5536
244 257
218 230
127 138
.300 .300
.058 .078
.046 .064
.450 .450
.480 .480
.510 .510
5676 5677 5738 5681 5682 5683 5684 5797 5685 5686 5783 5784
263 267 268 271 275 279 283 285 287 291 295 299
236 240 242 244 248 252 256 258 260 264 268 272
143 147 151 151 155 158 162 164 166 170 177 180
.300 .300 .300 .300 .300 .300 .300 .300 .300 .300 .300 .300
.088 .095 .097 .102 .109 .116 .123 .127 .130 .136 .145 .152
.074 .081 .083 .088 .095 .102 .109 .113 .116 .123 .131 .138
.450 .450 .450 .450 .450 .450 .450 .450 .450 .450 .450 .450
.480 .480 .480 .480 .480 .480 .480 .480 .480 .480 .480 .480
.510 .510 .510 .510 .510 .510 .510 .510 .510 .510 .510 .510
5864 5865 6174 6203 6204 6205
285 295 274 282 286 290
258 268 248 256 260 264
164 178 158 166 170 173
.302 .302 .304 .304 .304 .304
.127 .146 .109 .123 .130 .137
.113 .132 .095 .109 .116 .123
.453 .453 .456 .456 .456 .456
.483 .483 .486 .486 .486 .486
.513 .513 .517 .517 .517 .517
5495 5713 5714 5715
256 280 282 284
230 254 256 258
137 158 160 162
.306 .306 .306 .306
.077 .116 .119 .123
.064 .103 .106 .109
.459 .459 .459 .459
.490 .490 .490 .490
.517 .520 .520 .520
15400 15401 15402 15403 15404 15405 15406
293 295 297 299 301 303 305
266 268 270 272 274 276 278
175 177 179 181 183 185 187
.310 .310 .310 .310 .310 .310 .310
.140 .144 .147 .151 .154 .158 .161
.126 .130 .133 .137 .140 .144 .147
.465 .465 .465 .465 .465 .465 .465
.496 .496 .496 .496 .496 .496 .496
.527 .527 .527 .527 .527 .527 .527
6189 6190 6191
260 262 264
234 236 238
144 146 148
.312 .312 .312
.085 .088 .092
.071 .075 .078
.468 .468 .468
.499 .499
.530 .530
6192 6193 6194 6195 6196 6197 6198 6199 6200
266 270 274 278 282 286 290 294 298
240 244 248 252 256 260 264 268 272
150 154 158 162 166 170 174 178 182
.312 .312 .312 .312 .312 .312 .312 .312 .312
.095 .102 .109 .116 .123 .130 .137 .144 .151
.081 .088 .095 .102 .109 .116 .123 .130 .137
.468 .468 .468 .468 .468 .468 .468 .468 .468
.499 .499 .499 .499 .499 .499 .499 .499 .499 .499
.530 .530 .530 .530 .530 .530 .530 .530 .530 .530
LOBE LIFT
SOLID FLAT TAPPET
CAMSHAFT TYPE
Continued on page 58
SOLID FLAT TAPPET
SOLID FLAT TAPPET
MAX AREA LIFT RULE SOLIDS Continued CAMSHAFT TYPE
Max Area Low Lift Rated Duration @ .020" Tappet Lift .842" Min. Dia. .010"-.020" Lash MI 26.7 (13.0/13.7)
LOBE #
RATED DURATION
5893 5478 5813 5479 5480 5481 5814 5482 5483 5484
DURATION IN DEGREES @ .050
@ .200
252
226
135
293 295 297 299 301 303 305 307 309
266 268 270 272 274 276 278 280 282
174 176 178 180 182 184 185 187 189
6231 6232 6233 6234 6257 6235 6278 6236 6237 6238 6239 6246 6240 6249 6248
262 266 270 274 276 278 280 282 286 290 294 296 300 304 310
236 240 244 248 250 252 254 256 260 264 268 270 274 278 284
6241 6242 6243 6244 6294 6245 6247 6229 6228 6227 6230 6224 6226 6225
262 266 270 274 276 278 282 286 288 290 292 294 298 302
236 240 244 248 250 252 256 260 262 264 266 268 272 276
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.315
.070
.058
.473
.504
.536
.317 .317 .317 .317 .317 .317 .317 .317 .317
.139 .143 .146 .149 .153 .143 .159 .162 .165
.125 .129 .132 .136 .139 .129 .146 .149 .152
.476 .476 .476 .476 .476 .476 .476 .476 .476
.507 .507 .507 .507 .507 .507 .507 .507 .507
.539 .539 .539 .539 .539 .539 .539 .539 .539
148 152 156 160 162 164 166 168 172 176 180 182 186 190 196
.322 .322 .322 .322 .322 .322 .322 .322 .322 .322 .324 .320 .324 .324 .324
.088 .095 .102 .109 .113 .116 .120 .124 .131 .138 .145 .148 .155 .162 .173
.075 .081 .088 .095 .099 .102 .106 .109 .116 .124 .131 .134 .141 .148 .159
.483 .483 .483 .483 .483 .483 .483 .483 .483 .483 .486 .480 .486 .486 .486
.515 .515 .515 .515 .515 .515 .515 .515 .515 .515 .518 .512 .518 .518 .518
.547 .547 .547 .547 .547 .547 .547 .547 .547 .547 .551 .544 .551 .551 .551
149 152 156 160 162 164 167 170 174 176 178 180 184 188
.330 .330 .330 .330 .330 .330 .330 .330 .330 .330 .330 .330 .330 .330
.088 .095 .102 .109 .113 .116 .124 .132 .134 .138 .141 .145 .152 .159
.075 .081 .088 .095 .099 .102 .109 .116 .120 .124 .127 .131 .138 .145
.495 .495 .495 .495 .495 .495 .495 .495 .495 .495 .495 .495 .495 .495
.528 .528 .528 .528 .528 .528 .528 .528 .528 .528 .528 .528
.561 .561 .561 .561 .561 .561 .561 .561 .561 .561 .561 .561
.528 .528
.561 .561
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
These are designs for high RPM stocker applications. CAMSHAFT TYPE
USI Rated Duration @ .020" Tappet Lift MI 32.4 (15.7/16.7)
USX Rated Duration @ .020" Tappet Lift MI 32.6 (15.8/16.8)
LOBE #
RATED DURATION
5854 5840
DURATION IN DEGREES @ .050
@ .200
294 298
263 266
157 157
5538 5541 5540
294 296 298
262 264 266
5862 5846
300 305
5543 5544 5545 5546
299 301 303 305
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.267 .267
.124 .125
.111 .113
.401 .401
.427 .427
.454 .454
166 168 170
.345 .345 .345
.123 .126 .130
.110 .113 .116
.552 .552 .552
.587 .587 .587
.621 .621 .621
269 272
164 166
.277 .277
.135 .136
.122 .124
.416 .416
.443 .443
.471 .471
266 268 270 272
173 174 176 178
.365 .365 .365 .365
.131 .134 .138 .141
.117 .121 124 .128
.584 .584 .584 .584
.621 .621 .621 .621
.657 .657 .657 .657
SOLID FLAT TAPPET
USI USX UPI UPX STOCKER FLAT SOLIDS
MH SOLIDS MH Solids are the most aggressive .842" solid lifter profiles available. These are best in restricted applications where maximum torque and power are required and valve train rules are open except for requiring .842" flat tappets. The COMP Cams® #26094 valve spring, 3/8" minimum pushrod diameters, Hi-Tech™ late oiling tappets and shaft mounted rockers are all highly recommended. Please consult with a COMP Cams® CAM HELP® technician or one of our Engine Builder Sales personnel before using these profiles to reduce the risk from improper component selection. NOTE: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
MH Rated Duration @ .020" Tappet Lift .842" Min. Dia. .018" Lash MI 25.6 (12.3/13.3)
LOBE #
RATED DURATION
6252 6286 6253 6289 6282 6251 6281 6250 6280 6254 6283 6284 6255 6285 6256
262 264 266 268 270 272 274 276 278 280 282 284 286 288 290
DURATION IN DEGREES @ .050
@ .200
236 238 240 242 244 246 248 250 252 254 256 258 260 262 264
149 151 153 155 157 159 161 163 165 167 169 171 173 175 177
LOBE LIFT
.345 .348 .350 .354 .357 .360 .362 .365 .367 .368 .370 .372 .375 .377 .380
TAPPET LIFT @ TDC 106°
110°
.088 .092 .095 .099 .102 .106 .109 .113 .116 .120 .124 .127 .131 .134 .138
.075 .078 .081 .085 .088 .092 .095 .099 .102 .106 .109 .113 .116 .120 .124
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.518 .522 .525 .531 .536 .540 .543 .548 .551 .552 .555 .558 .563 .566 .570
.552 .557 .560 .566 .571 .576 .579 .584 .587 .589 .592 .595 .600 .603 .608
.587 .592 .595 .602 .607 .612 .615 .621 .624 .626 .629 .632 .638 .641 .646
SOLID FLAT TAPPET
SOLID FLAT TAPPET
GRI SOLIDS The GRI Series .842" solid lifter profiles are designed using the latest techniques to fill in the gap between the XTQ and MH families while providing better dynamics than either other design. These should be used only on nitrided camshafts. Also, the mating lifters should be inspected and sorted by the chamfer with only small chamfer lifters used on these designs. Please consult with a COMP Cams® CAM HELP® technician or one of our Engine Builder Sales personnel before using these profiles to reduce the risk from improper component selection. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
LOBE #
RATED DURATION
GRI Rated Duration @ .020" Tappet Lift
16200 16202 16203 16204 16206 16208 16210 16212 16214 16216 16218 16220 16222 16188
MI 27.1 (13.1/14.0)
DURATION IN DEGREES @ .050
@ .200
265 269 271 273 277 281 285 289 293 297 301 305 309
238 242 244 246 250 254 258 262 266 270 274 278 282
150 154 156 158 162 166 170 174 178 182 186 190 194
281
254
166
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.346 .353 .357 .360 .367 .373 .379 .385 .391 .397 .403 .409 .415
.091 .098 .102 .105 .112 .119 .126 .133 .140 .147 .154 .161 .168
.078 .084 .088 .091 .098 .105 .112 .119 .126 .133 .140 .147 .154
.519 .530 .536 .540 .551 .560 .569 .578 .587 .596 .605 .614 .623
.554 .565 .571 .576 .587 .597 .606 .616 .626 .635 .645 .654 .664
.588 .600 .607 .612 .624 .634 .644 .655 .665 .675 .685 .695 .706
.360
.119
.105
.540
.576
.612
MEM SOLIDS The MEM Series .842" solid lifter profiles were designed for the first Engine Masters competition. May work on minimum chamfer .842" lifters for a short period of time but would be much safer on .875" tappets. 1.948" minimum journal diameter. Nitriding and increased oiling are highly recommended. CAMSHAFT TYPE
MEM Rated Duration @ .020" Tappet Lift MI 25.5 (12.4/13.1)
LOBE #
RATED DURATION
6780 6782 6784 6786 6788
262 266 270 274 278
DURATION IN DEGREES @ .050
@ .200
237 241 245 249 253
152 156 160 164 168
LOBE LIFT
.363 .369 .375 .381 .387
TAPPET LIFT @ TDC 106°
110°
.092 .099 .106 .113 .120
.078 .085 .092 .099 .106
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.545 .554 .563 .572 .581
.581 .590 .600 .610 .619
.617 .627 .638 .648 .658
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
SOLID FLAT TAPPET
MHF SOLIDS
MHF Solids are similar to the MH Series but have even more velocity and more area to take complete advantage of the larger .875" Ford lifter. Please consult with a COMP Cams® CAM HELP® technician or one of our Engine Builder Sales personnel before using these profiles to reduce the risk from improper component selection. NOTE: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
MHF Rated Duration @ .020" Tappet Lift .875" Min. Dia. .018" Lash
7393 7394 7395 7404 7405 7406 7408 7409
260 262 264 266 268 270 274 278
234 236 238 240 242 244 248 252
150 152 154 156 158 160 164 168
.355 .357 .359 .361 .362 .364 .369 .373
.085 .089 .093 .096 .100 .104 .111 .118
.071 .075 .078 .082 .085 .089 .096 .104
.533 .536 .539 .542 .543 .546 .554 .560
.568 .571 .574 .578 .579 .582 .590 .597
.604 .607 .610 .614 .615 .619 .627 .634
7411 7412 7413 7414 7415 7416
282 286 290 294 296 298
256 260 264 268 270 272
172 176 180 184 186 188
.380 .385 .390 .395 .397 .400
.126 .133 .141 .148 .152 .156
.111 .118 .126 .133 .137 .141
.570 .578 .585 .593 .596 .600
.608 .616 .624 .632 .635 .640
.646 .655 .663 .672 .675 .680
MI 25.6 (12.4/13.2)
LOBE LIFT
FL & SQ SOLIDS The FL Series is designed to provide excellent area under the curve with an .875" tappet. These work well in place of TLs where .875" lifters can be used. Excellent in restricted applications with 1.65:1 to 1.75:1 rocker arms. Increased valve spring loads are recommended for higher RPM. The SQ designs are the larger cousins of the FL series and can be used in higher RPM applications with increased spring loads. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
FL .875" Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 29.2 (14.6/14.6)
7130 7131 7132 7133 7134
FL268 FL272 FL276 FL280 FL284
239 243 247 251 254
153 157 161 165 169
.356 .361 .366 .371 .381
.091 .098 .106 .113 .120
.078 .084 .091 .098 .106
.534 .542 .549 .557 .572
.570 .578 .586 .594 .610
.605 .614 .622 .631 .648
SQ .875" Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 29.2 (14.6/14.6)
7250 7262 7260 7263 7261 7265 7266 7267
289 291 293 295 297 300 302 304
260 262 264 266 268 270 272 274
175 177 179 181 183 185 187 189
.385 .385 .390 .390 .400 .400 .400 .400
.132 .135 .138 .142 .146 .150 .154 .158
.117 .120 .123 .127 .131 .135 .139 .143
.578 .578 .585 .585 .600 .600 .600 .600
.616 .616 .624 .624 .640 .640 .640 .640
.655 .655 .663 .663 .680 .680 .680 .680
LOBE LIFT
SOLID FLAT TAPPET HIGH RPM DASH 12 SOLIDS
SOLID FLAT TAPPET
Designed to turn high engine speed while maintaining control of the valve. Must use .875" diameter lifter. For use with 1.65 to 1.7+ rocker arms. Easy on valve train components. Intake designs have faster opening ramps and can be used on intake or exhaust. Exhaust designs have symmetric ramps and are smoother. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
LOBE #
RATED DURATION
High RPM Dash 12 Int. Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 35.0 (16.5/18.5)
7160 7161 7162 7163 7164 7165 7166 7168 7158 7159
High RPM Dash 12 Exh. Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 37.0 (18.5/18.5)
7169 7170 7174 7171 7172
DURATION IN DEGREES @ .050
@ .200
292-12 296-12 300-12 302-12 304-12 306-12 308-12 312-12 314-12 318-12
258 262 266 268 270 272 274 278 280 284
168 171 176 179 180 182 183 188 190 194
312-11 316-12 318-11 320-12 322-12
276 280 282 284 286
184 188 190 192 194
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.375 .380 .390 .395 .395 .400 .400 .408 .410 .410
.120 .128 .130 .134 .138 .142 .145 .153 .156 .164
.106 .113 .116 .119 .123 .127 .130 .138 .142 .149
.563 .570 .585 .593 .593 .600 .600 .612 .615 .615
.600 .608 .624 .632 .632 .640 .640 .653 .656 .656
.638 .646 .663 .672 .672 .680 .680 .694 .697 .697
.400 .408 .410 .410 .410
.148 .155 .159 .163 .167
.134 .141 .145 .148 .152
.600 .612 .615 .615 .615
.640 .653 .656 .656 .656
.680 .694 .697 .697 .697
DASH 13 SOLIDS Dash 13 Solids are very similar to both the Dash 12 and XX open designs. These provide a more modern, in-between series that can handle more rocker ratio than either of the two earlier families. Note: Cams using these lobes should have provisions for increased oiling. CAMSHAFT TYPE
LOBE #
RATED DURATION
Dash 13 Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 33.8 (16.6/16.9)
7185 9185 7186 9186 7187 9187 7188 9188 7189 9189 7190 9190 7191 9191 7192 9192 7193 9193 7194
310-13 310 312-13 312 314-13 314 316-13 316 318-13 318 320-13 320 322-13 322 324-13 324 326-13 326 328-13
DURATION IN DEGREES @ .050
@ .200
276 276 278 278 280 280 282 282 284 284 286 286 288 288 290 290 292 292 294
186 186 188 188 190 190 192 192 194 194 196 196 198 198 200 200 202 202 204
LOBE LIFT
.392 .402 .394 .404 .396 .406 .398 .408 .400 .410 .402 .412 .403 .414 .404 .416 .405 .418 .406
TAPPET LIFT @ TDC 106°
110°
.151 .151 .155 .155 .159 .159 .163 .163 .166 .166 .170 .170 .174 .174 .178 .178 .182 .182 .186
.136 .136 .140 .140 .144 .144 .148 .148 .151 .151 .155 .155 .159 .159 .163 .163 .167 .167 .171
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.627 .643 .630 .646 .634 .650 .637 .653 .640 .656 .643 .659 .645 .662 .646 .666 .648 .669 .650
.666 .683 .670 .687 .673 .690 .677 .694 .680 .697 .683 .700 .685 .704 .687 .707 .689 .711 .690
.706 .724 .709 .727 .713 .731 .716 .734 .720 .738 .724 .742 .725 .745 .727 .749 .729 .752 .731
Continued on page 63
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
DASH 13 SOLIDS Continued LOBE #
RATED DURATION
Dash 13 Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 33.8 (16.6/16.9)
9194 7015 9195 7016
328 330-13 330 332-13
DURATION IN DEGREES @ .050
@ .200
294 296 296 298
204 206 206 208
LOBE LIFT
.420 .407 .422 .408
TAPPET LIFT @ TDC 106°
110°
.186 .189 .189 .193
.171 .174 .174 .178
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.672 .651 .675 .653
.714 .692 .717 .694
.756 .733 .760 .734
F3 EXHAUST SOLIDS
SOLID FLAT TAPPET
CAMSHAFT TYPE
The F3 Exhaust Solids are like the Dash 13 high lift lobes, but they have a faster opening ramp design to help increase torque while increasing opening area to reduce pumping losses. NOTE: Cams using these lobes should have provisions for increased oiling. CAMSHAFT TYPE
LOBE #
RATED DURATION
F3 Exh. Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 31.9 (15.0/16.9)
9158 9159 9160 9161 9162
314 316 318 320 322
DURATION IN DEGREES @ .050
@ .200
283 285 287 289 291
194 196 198 200 202
LOBE LIFT
.410 .412 .414 .416 .418
TAPPET LIFT @ TDC 106°
110°
.166 .170 .174 .178 .182
.151 .155 .159 .163 .167
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.656 .659 .662 .666 .669
.697 .700 .704 .707 .711
.738 .742 .745 .749 .752
D3C SOLIDS D3C Solids are like the Dash 13 designs but with slightly less velocity for coated tappets. CAMSHAFT TYPE
LOBE #
RATED DURATION
D3C Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 33.8 (16.6/16.9)
9384 9385 9386 9387 9388 9389
312 314 316 318 320 322
DURATION IN DEGREES @ .050
@ .200
278 280 282 284 286 288
187 189 191 193 195 197
LOBE LIFT
.390 .392 .394 .396 .398 .400
TAPPET LIFT @ TDC 106°
110°
.154 .158 .162 .166 .169 .173
.140 .144 .147 .151 .155 .158
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.624 .627 .630 .634 .637 .640
.663 .666 .670 .673 .677 .680
.702 .706 .709 .713 .716 .720
XX SOLIDS The smaller Restricted Designs are very aggressive. The larger Open Designs are for continuous high RPM, providing stability over 8500 with good related components. Both require proper spring selection and regular maintenance. Very good horsepower curves. Proper break-in is very critical with these lobe designs. Best when used with COMP® HTL Lifters and 1.6-1.7 rocker ratios. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
LOBE #
RATED DURATION
XX Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 30.0 (13.6/16.4)
7110 7113 7114 7115 7136 7116 7118 7117
278XX 280XX 282XX 284XX 286XX 288XX 294XX 298XX
DURATION IN DEGREES @ .050
@ .200
246 248 250 254 256 258 262 266
159 160 162 166 168 170 175 180
LOBE LIFT
.365 .365 .370 .366 .378 .380 .390 .400
TAPPET LIFT @ TDC 106°
110°
.102 .103 .106 .114 .118 .120 .129 .137
.088 .090 .092 .100 .104 .107 .115 .122
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.548 .548 .555 .549 .567 .570 .585 .600
.584 .584 .592 .586 .605 .608 .624 .640
.621 .621 .629 .622 .643 .646 .663 .680
Continued on page 64
SOLID FLAT TAPPET
SOLID FLAT TAPPET
XX SOLIDS Continued CAMSHAFT TYPE
LOBE #
RATED DURATION
Open Designs Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 32.7 (16.4/16.4)
7068 7069 7071 7072 7073 7074 7075 7125 7077 7078 7127 7079 7135 7080 7081
292XX 296XX 300XX 302XX 304XX 306XX 308XX 310XX 312XX 314XX 316XX 318XX 320XX 322XX 324XX
DURATION IN DEGREES @ .050
@ .200
260 264 268 270 272 274 276 278 280 282 284 286 288 290 292
170 174 178 180 182 184 186 190 191 193 196 197 200 201 203
LOBE LIFT
.390 .395 .400 .403 .406 .408 .410 .415 .415 .418 .420 .420 .420 .420 .420
TAPPET LIFT @ TDC 106°
110°
.124 .133 .139 .141 .145 .148 .153 .158 .161 .165 .169 .172 .177 .179 .183
.110 .119 .122 .124 .126 .131 .133 .139 .143 .150 .146 .157 .154 .165 .168
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.585 .593 .600 .605 .609 .612 .615 .623 .623 .627 .630 .630 .630 .630 .630
.624 .632 .640 .645 .650 .653 .656 .664 .664 .669 .672 .672 .672 .672 .672
.663 .672 .680 .685 .690 .694 .697 .706 .706 .711 .714 .714 .714 .714 .714
HIGH ROCKER RATIO SOLIDS Specially designed for NASCAR Cup restrictor plate engines. Use with 2.0:1 intake rocker and 1.9:1 exhaust along with a COMP Cams® #927 valve spring. Very smooth for 2.0:1 design and very easy on other valve train parts. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
LOBE #
RATED DURATION
High Rocker Ratio Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 32.3 (15.7/16.6)
7380 7381 7382 7388 7383 7386 7384 7387 7385 7389 7396 7399
261 265 270 272 274 276 278 280 282 286 292 298
DURATION IN DEGREES @ .050
@ .200
230 234 238 240 242 244 246 248 250 254 260 266
141 144 146 149 152 153 154 157 158 163 169 175
LOBE LIFT
.325 .325 .325 .335 .335 .335 .335 .340 .340 .350 .355 .360
TAPPET LIFT @ TDC 106°
110°
.075 .081 .087 .090 .094 .097 .100 .104 .107 .114 .125 .136
.063 .069 .075 .078 .081 .084 .087 .090 .094 .100 .111 .121
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.9 2.0 2.1
.618 .618 .618 .637 .637 .637 .637 .646 .646 .665 .675 .684
.650 .650 .650 .670 .670 .670 .670 .680 .680 .700 .710 .720
.683 .683 .683 .704 .704 .704 .704 .714 .714 .735 .746 .756
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
SOLID FLAT TAPPET
HIGH ROCKER RATIO II SOLIDS
Specially designed for NASCAR Cup restrictor plate engines. Use with 2.0:1 intake rocker and 1.9:1 exhaust along with a COMP Cams® #927 valve spring. More aggressive than earlier 2.0:1 design but still very easy on valve train parts. CAMSHAFT TYPE
LOBE #
RATED DURATION
High Rocker Ratio II Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 29.9 (14.6/15.3)
7353 7354 7355 7356 7357 7358 7359 7362 7363 7364 7365 7366 7367 7368
266 268 270 272 274 276 278 280 282 284 286 288 290 292
DURATION IN DEGREES @ .050
@ .200
236 238 240 242 244 246 248 250 252 254 256 258 260 262
148 150 152 154 157 158 160 162 164 166 167 169 170 172
LOBE LIFT
.332 .335 .338 .342 .345 .345 .345 .345 .345 .345 .345 .345 .345 .345
TAPPET LIFT @ TDC 106°
110°
.087 .090 .093 .097 .101 .104 .108 .111 .115 .119 .122 .126 .129 .133
.063 .076 .080 .083 .087 .090 .093 .097 .100 .104 .108 .111 .115 .118
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.9 2.0 2.1
.631 .637 .642 .650 .656 .656 .656 .656 .656 .656 .656 .656 .656 .656
.664 .670 .676 .684 .690 .690 .690 .690 .690 .690 .690 .690 .690 .690
.697 .704 .710 .718 .725 .725 .725 .725 .725 .725 .725 .725 .725 .725
N SOLIDS Our most popular NASCAR Cup designs, these provide excellent power and reliability. Very stable at high RPM (9400+) with COMP Cams® #927 valve springs and proper valve train selection. Excellent high end power with slightly less low-end torque than XX series. Needs .875" HTL tappet and true lifter bores with very careful break-in. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
N Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 31.8 (15.0/16.8)
7020 7021 7022 7028 7023 7084 7085 7086 7087
294N-1 298N-2 300N-1 302N-1 304N-1 306N-1 308N-1 310N-1 312N-1
262 266 268 270 272 274 276 278 280
174 176 173 181 183 186 187 189 191
.401 .410 .406 .410 .412 .411 .411 .411 .411
.129 .134 .132 .143 .147 .151 .155 .158 .161
.115 .120 .121 .128 .132 .136 .141 .143 .147
.602 .615 .609 .615 .618 .617 .617 .617 .617
.642 .656 .650 .656 .659 .658 .658 .658 .658
.682 .697 .690 .697 .700 .699 .699 .699 .699
N Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 38.7 (20.6/18.1)
7120 7121 7122 7123 7124
304N-3E 308N-1E 310N-1E 314N-1E 318N-1E
266 270 271 276 280
174 179 178 183 186
.390 .400 .390 .400 .405
.128 .133 .137 .145 .149
.114 .119 .123 .131 .135
.585 .600 .585 .600 .608
.624 .640 .624 .640 .648
.663 .680 .663 .680 .689
LOBE LIFT
SOLID FLAT TAPPET
SOLID FLAT TAPPET
OVAL+ SOLIDS These profiles have their design based on the ever popular N-1 series but have been optimized for the higher rocker ratios, tighter lash settings and lower compression used in today’s NASCAR Cup engines. For use with 1.7 to 1.8:1 rockers (or more in qualifying). Requires the same care as the N-1 for break-in. CAMSHAFT TYPE
LOBE #
RATED DURATION
Oval+ Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 32.5 (15.6/16.9)
7037 7038 7039 7040 7041 7042 7043 7044 7049
299 301 303 305 307 309 311 313 315
DURATION IN DEGREES @ .050
@ .200
266 268 270 272 274 276 278 280 282
177 179 181 183 185 187 189 191 193
LOBE LIFT
.399 .401 .403 .405 .407 .409 .411 .413 .415
TAPPET LIFT @ TDC 106°
110°
.136 .140 .143 .147 .151 .154 .158 .162 .165
.122 .125 .128 .132 .136 .140 .143 .147 .151
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
.678 .682 .685 .689 .692 .695 .699 .702 .706
.698 .702 .705 .709 .712 .716 .719 .723 .726
.718 .722 .725 .729 .733 .736 .740 .743 .747
FE .875" SOLIDS These profiles have their design based on the ever popular N-1 series but have been optimized for the higher rocker ratios, tighter lash settings and lower compression used in today’s NASCAR Cup engines. For use with 1.7 to 1.8:1 rockers (or more in qualifying). Requires the same care as the N-1 for break-in. CAMSHAFT TYPE
LOBE #
RATED DURATION
FE .875" Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 32.0 (15.0/17.0)
7665 7666 7667 7668 7669 7670 7671
299 301 303 305 307 309 311
DURATION IN DEGREES @ .050
@ .200
267 269 271 273 275 277 279
178 180 182 184 186 188 190
LOBE LIFT
.398 .400 .402 .405 .408 .411 .413
TAPPET LIFT @ TDC 106°
110°
.138 .141 .145 .149 .153 .156 .159
.123 .127 .130 .134 .137 .141 .145
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
.677 .680 .683 .689 .694 .699 .702
.697 .700 .704 .709 .714 .719 .723
.716 .720 .724 .729 .734 .740 .743
TDLC SOLIDS The TDLC Solids are a cross between the Oval+ and FE designs but with lower velocity for use with coated tappets. CAMSHAFT TYPE
LOBE #
RATED DURATION
TDLC Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 31.8 (15.5/16.3)
9374 9375 9376 9377
297 299 301 303
DURATION IN DEGREES @ .050
@ .200
266 268 270 272
176 178 180 182
LOBE LIFT
.384 .386 .388 .390
TAPPET LIFT @ TDC 106°
110°
.134 .138 .142 .145
.120 .124 .127 .131
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.9 2.0 2.1
.730 .733 .737 .741
.768 .772 .776 .780
.806 .811 .815 .819
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
The T1N series is the next step in the evolution of the N1, Oval+ and FE series. These are optimized for use on tool steel cams and work very well with the popular DLC tappet coatings. T1N profiles have been used very successfully on both the intake and exhaust side. CAMSHAFT TYPE
T1N High RPM .875" Flat Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 32.6 (15.7/16.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
9360 9361 9362 9363 9364 9365 9366 9367 9368
303 305 307 309 311 313 315 317 319
270 272 274 276 278 280 282 284 286
181 183 185 187 189 191 193 195 197
.394 .396 .398 .400 .402 .404 .406 .408 .410
.142 .146 .150 .153 .157 .161 .164 .168 .172
.128 .131 .135 .139 .142 .146 .150 .153 .157
.709 .713 .716 .720 .724 .727 .731 .734 .738
.749 .752 .756 .760 .764 .768 .771 .775 .779
.788 .792 .796 .800 .804 .808 .812 .816 .820
9369 9370
321 323
288 290
199 201
.412 .414
.176 .179
.161 .164
.742 .745
.783 .787
.824 .828
LOBE LIFT
SOLID FLAT TAPPET
T1N − VERY HIGH RPM .875" FLAT
TCT − HIGH RATIO .875" FLAT CAMSHAFT TYPE
LOBE #
RATED DURATION
TCT High Ratio .875" Flat Rated Duration @ .020" Tappet Lift MI 33.3 (16.4/16.9)
9771
DURATION IN DEGREES @ .050
@ .200
298
265
173
9772
300
267
9773
302
269
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.1 2.2
106°
110°
.372
.130
.116
.744
.781
.818
175
.374
.133
.119
.748
.785
.823
177
.376
.137
.123
.752
.790
.827
NRX SOLIDS The NRX Solids are designed for use in NASCAR Cup engines with 55mm or larger journals. They are designed with higher lobe lifts than the standard journal families to allow either less ratio or higher lift. Use in applications with less than 55mm journals will result in a small nose radius and premature wear. CAMSHAFT TYPE
LOBE #
RATED DURATION
NRX Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 32.6 (15.5/17.1)
7203 7204 9800 7205 9801 7206 9802 7207 7208 9709 9710
299 301 303 303 305 305 307 307 309 311 313
DURATION IN DEGREES @ .050
@ .200
266 268 270 270 272 272 274 274 276 278 280
179 181 183 183 185 185 187 187 189 191 193
LOBE LIFT
.414 .416 .408 .418 .410 .420 .412 .422 .424 .426 .428
TAPPET LIFT @ TDC 106°
110°
.139 .143 .147 .147 .151 .151 .155 .155 .158 .162 .166
.124 .128 .132 .132 .136 .136 .139 .139 .143 .147 .151
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
.704 .707 .694 .711 .697 .714 .700 .717 .721 .724 .728
.725 .728 .714 .732 .718 .735 .721 .739 .742 .746 .749
.745 .749 .734 .752 .738 .756 .742 .760 .763 .767 .770
Continued on page 68
SOLID FLAT TAPPET
SOLID FLAT TAPPET
NRX SOLIDS Continued CAMSHAFT TYPE
LOBE #
RATED DURATION
NRX Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 32.6 (15.5/17.1)
9711 9807 9712 9808 9713 9714
315 317 317 319 319 321
DURATION IN DEGREES @ .050
@ .200
282 284 284 286 286 288
195 197 197 199 199 201
LOBE LIFT
.430 .428 .432 .430 .434 .436
TAPPET LIFT @ TDC 106°
110°
.170 .174 .174 .177 .177 .181
.155 .158 .158 .162 .162 .166
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
.731 .728 .734 .731 .738 .741
.753 .749 .756 .753 .760 .763
.774 .770 .778 .774 .781 .785
DIR 2.3 RATIO CONVERSIONS − .875" FLAT CAMSHAFT TYPE
LOBE #
RATED DURATION
DIR High Lift Rated Duration @ .020" Tappet Lift MI 34.0 (16.0/18.0)
17574 17600 17382 17525 17576 17549 17537 17570 17538 17605 17572
290 294 294 292 294 314 312 316 314 318 320
DURATION IN DEGREES @ .050
@ .200
256 259 260 260 260 279 280 281 282 282 285
166 167 169 172 169 186 189 185 191 187 189
LOBE LIFT
.378 .379 .376 .375 .380 .380 .382 .374 .384 .379 .376
TAPPET LIFT @ TDC 106°
110°
.115 .119 .121 .126 .122 .154 .158 .153 .162 .156 .159
.101 .105 .108 .112 .108 .140 .144 .139 .147 .142 .146
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.20 2.30 2.40
.832 .834 .827 .825 .836 .836 .840 .823 .845 .834 .827
.869 .872 .865 .863 .874 .874 .879 .860 .883 .872 .865
.907 .910 .902 .900 .912 .912 .917 .898 .922 .910 .902
BB GG .875" PLATE DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.2 2.3 2.4
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
BB & GG COT Rated Duration @ .875" Min. Dia. MI 33.1 (16.1/17.0)
17238 17239 17240 17241 17242
280 282 284 286 288
247 249 251 253 255
158 160 162 163 165
.369 .370 .371 .372 .373
.102 .105 .109 .112 .116
.088 .092 .095 .098 .102
.812 .814 .816 .818 .821
.849 .851 .853 .856 .858
.886 .888 .890 .893 .895
BB & GG COT Rated Duration @ .875" Min. Dia. MI 34.1 (16.5/17.6)
17244 17245 17246 17248
290 292 294 298
256 258 260 264
165 167 169 173
.376 .377 .378 .380
.115 .118 .121 .128
.101 .104 .108 .114
.827 .829 .832 .836
.865 .867 .869 .874
.902 .905 .907 .912
CAMSHAFT TYPE
LOBE #
RATED DURATION
TDP Flat Plate Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 29.6 (14.4/15.2)
9635 9636 9637 9638 9639
270 272 274 276 278
LOBE LIFT
TDP FLAT PLATE DURATION IN DEGREES @ .050
@ .200
241 243 245 247 249
154 156 158 160 162
LOBE LIFT
.354 .356 .358 .360 .362
TAPPET LIFT @ TDC 106°
110°
.094 .098 .102 .105 .109
.081 .084 .088 .091 .095
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.1 2.2
.708 .712 .716 .720 .724
.743 .748 .752 .756 .760
.779 .783 .788 .792 .796
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
CAMSHAFT TYPE
LOBE #
RATED DURATION
TDP 2 Flat Plate Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 29.6 (14.4/15.2)
9631
DURATION IN DEGREES @ .050
@ .200
270
241
154
9632
272
243
9633
274
245
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.1 2.2
106°
110°
.344
.094
.081
.688
.722
.757
156
.346
.098
.084
.692
.727
.761
158
.348
.102
.088
.696
.731
.766
TDP FLAT PLATE − LOWER LOBE LIFT CAMSHAFT TYPE
LOBE #
RATED DURATION
TDP − LLL Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 29.6 (14.4/15.2)
9602 9603 9604 9605 9606 9608
270 272 274 276 278 280
DURATION IN DEGREES @ .050
@ .200
241 243 245 247 249 251
153 155 157 159 161 163
LOBE LIFT
.334 .336 .338 .340 .342 .344
TAPPET LIFT @ TDC 106°
110°
.094 .098 .102 .105 .109 .112
.081 .084 .088 .091 .095 .098
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.1 2.2
.668 .672 .676 .680 .684 .688
.701 .706 .710 .714 .718 .722
.735 .739 .744 .748 .752 .757
HY SERIES FLAT PLATE CAMSHAFT TYPE
LOBE #
RATED DURATION
HY Flat Plate Rated Duration @ .020" Tappet Lift .875" Min. Dia. MI 29.0 (14.1/14.9)
9828 9829 9830 9831 9832 9833 9834 9835 9837
269 273 275 277 279 281 283 285 289
DURATION IN DEGREES @ .050
@ .200
240 244 246 248 250 252 254 256 260
155 159 161 163 165 167 169 171 175
LOBE LIFT
.344 .348 .350 .352 .354 .356 .358 .360 .364
TAPPET LIFT @ TDC 106°
110°
.096 .103 .107 .110 .114 .118 .121 .125 .133
.082 .089 .092 .096 .099 .103 .107 .110 .118
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.1 2.2
.688 .696 .700 .704 .708 .712 .716 .720 .728
.722 .731 .735 .739 .743 .748 .752 .756 .764
.757 .766 .770 .774 .779 .783 .788 .792 .801
CHRYSLER SPECIAL SOLIDS These lobes are for use only in Chrysler Corporation engines with .904" tappet diameter. The "Specials" are to be used in 426c.i. or larger engines. Developed for the Top Fuel drag racing program, these designs offer excellent torque and horsepower. CAMSHAFT TYPE
LOBE #
RATED DURATION
Chrysler Special Rated Duration @ .020" Tappet Lift .904" Min. Dia. MI 37.8 (16.8/21.0)
6129 6130 6132 6133 6131 6134
324-7 328-10 330-1 330-2 334-1 335-1
DURATION IN DEGREES @ .050
@ .200
290 296 290 292 296 300
200 208 200 200 203 207
LOBE LIFT
.433 .425 .410 .395 .413 .438
TAPPET LIFT @ TDC 106°
110°
.176 .193 .170 .175 .186 .193
.161 .178 .154 .160 .171 .177
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.650 .638 .615 .592 .620 .657
.693 .680 .656 .632 .660 .700
.736 .723 .697 .671 .702 .745
SOLID FLAT TAPPET
TDP 2 FLAT PLATE
SOLID FLAT TAPPET
SOLID FLAT TAPPET
MP SOLIDS The MP Series uses a design similar to the TL Series except these have more area due to being designed with more velocity for a .904" minimum tappet diameter. They are very good in Late Model Stock applications where rules allow the larger tappet diameter. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
LOBE #
RATED DURATION
MP Solids Rated Duration @ .020" Tappet Lift .904" Min. Dia. .018" Lash
6610
DURATION IN DEGREES @ .050
@ .200
274
247
162
6611
284
251
6612
288
256
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.345
.108
.093
.518
.552
.587
166
.355
.115
.100
.533
.568
.604
171
.365
.123
.108
.548
.584
.621
MM SOLIDS MM solids are similar to the MH and MHF Series but have even more velocity and more area to take complete advantage of the larger .904" Chrysler/Mopar lifter. Please consult with a COMP Cams® CAM HELP® technician or one of our Engine Builder Sales personnel before using these profiles to reduce the risk from improper component selection. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative. CAMSHAFT TYPE
LOBE #
RATED DURATION
MM Rated Duration @ .020" Tappet Lift .904" Min. Dia. .018" Lash MI 25.6 (12.3/13.3)
6580 6581 6582 6579 6583 6584 6585 6586 6587 6588 6589 6590 6591 6602
261 265 269 271 273 277 281 285 289 293 297 301 305 309
DURATION IN DEGREES @ .050
@ .200
235 239 243 245 247 251 255 259 263 267 271 275 279 283
153 157 161 163 165 169 173 177 181 185 189 193 197 201
LOBE LIFT
.350 .358 .366 .370 .373 .380 .388 .396 .404 .411 .418 .426 .433 .439
TAPPET LIFT @ TDC 106°
110°
.089 .096 .104 .108 .111 .119 .126 .134 .142 .149 .157 .164 .172 .180
.075 .082 .089 .093 .096 .104 .111 .119 .126 .134 .142 .149 .157 .165
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.525 .537 .549 .554 .560 .570 .582 .594 .606 .617 .627 .639 .650 .661
.560 .573 .586 .591 .597 .608 .621 .634 .646 .658 .669 .682 .693 .705
.595 .609 .622 .628 .634 .646 .660 .673 .687 .699 .711 .724 .736 .749
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
HIGH ENERGY™ STREET ROLLERS
Designed specifically for street use, these Street Rollers offer unique approach ramps, allowing the use of lower seat pressure to ensure long life. These lobes are very "soundy" or "throaty" because of the opening and closing ramp designs. CAMSHAFT TYPE
LOBE #
RATED DURATION
High Energy™ Street Rated Duration @ .015" Tappet Lift Valve Lash .020" MI 35.0 (17.5/17.5)
1496 4002 1498 1474 1476 4220 4221
268HER-2 272HER-2 276HER-2 280HER-2 288HER-4 300HER-2 308HER-4
DURATION IN DEGREES @ .050
@ .200
224 228 232 236 244 255 262
141 144 148 152 158 170 176
LOBE LIFT
.3500 .3500 .3500 .3666 .3666 .3833 .3833
TAPPET LIFT @ TDC 106°
110°
.068 .073 .078 .085 .098 .119 .130
.056 .061 .066 .072 .084 .104 .115
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.525 .525 .525 .550 .550 .575 .575
.560 .560 .560 .587 .587 .613 .613
.595 .595 .595 .623 .623 .652 .652
XTREME ENERGY™ STREET ROLLERS This newest addition to the Xtreme family of lobes delivers the responsiveness, torque and reliability only available with COMP Cams® Xtreme designs coupled with the high RPM power of modern race roller designs. Our development test included Spintron dynamics evaluations, engine dyno testing, chassis dyno testing and three Hot Rod Power Tours. Coupled with the COMP Cams® Endure-X™ Roller Lifters, these profiles bring street roller technology into the new millennium. CAMSHAFT TYPE
Xtreme Energy™ Street Standard Ratio Rated Duration @ .015" Tappet Lift Valve Lash .014"-.018" Journal = I,S,B,R… MI 28.9 (13.9/15.0)
Xtreme Energy™ Street High Ratio Rated Duration @ .015" Tappet Lift Valve Lash .014"-.018" Journal = I,T,S,R… MI 32.0 (14.7/17.3)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
4870 4871 4872 4873 2119 4874 2121 4875 4876 2123 4869 4877 4878 4879 4880 4881
256XSR 262XSR 268XSR 274XSR 278 280XSR 286 286XSR 292XSR 294 296XSR 298XSR 304XSR 310XSR 316XSR 320XSR
218 224 230 236 240 242 248 248 254 256 258 260 266 272 278 282
141 147 153 159 162 164 169 170 176 177 179 181 187 193 198 202
.360 .360 .368 .376 .378 .380 .382 .384 .388 .386 .390 .392 .398 .404 .411 .415
.056 .066 .076 .087 .094 .098 .110 .110 .122 .126 .130 .135 .137 .159 .171 .179
.045 .053 .062 .072 .079 .083 .094 .094 .106 .110 .114 .118 .130 .143 .155 .163
.540 .540 .552 .564 .567 .570 .573 .576 .582 .579 .585 .588 .597 .606 .617 .623
.576 .576 .589 .602 .605 .608 .611 .614 .621 .618 .624 .627 .637 .646 .658 .664
.612 .612 .626 .639 .643 .646 .649 .653 .660 .656 .663 .666 .677 .687 .699 .706
4850 4851 4855 4854 4852 4853 4856 4857
259 265 267 270 274 280 284 288
219 225 227 230 234 240 244 248
131 136 138 140 144 149 152 155
.330 .330 .330 .330 .330 .335 .335 .335
.055 .064 .067 .070 .076 .086 .092 .099
.045 .053 .055 .058 .064 .053 .079 .085
.495 .495 .495 .495 .495 .503 .503 .503
.528 .528 .528 .528 .528 .536 .536 .536
.561 .561 .561 .561 .561 .570 .570 .570
LOBE LIFT
Continued on page 72
SOLID ROLLER
SOLID ROLLER
XTREME ENERGY™ STREET ROLLERS Continued CAMSHAFT TYPE
LOBE #
RATED DURATION
Xtreme Energy™ Street High Ratio Rated Duration @ .015" Tappet Lift Valve Lash .014"-.018"
4858
DURATION IN DEGREES @ .050
@ .200
292
252
161
4859
296
256
4860
300
4861
308
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.346
.106
.092
.519
.554
.588
164
.346
.112
.099
.519
.554
.588
260
167
.346
.119
.105
.519
.554
.588
268
173
.346
.132
.118
.519
.554
.588
LSA & LSB STREET ROLLERS The LSA and LSB Street Rollers are specifically optimized for LS engine configurations with 1.7 to 1.8 rocker arms and this engine's stiff light valve train. These profiles provide a solid roller improvement over the popular LSR hydraulic roller profiles for customers would want the increased high speed precision of a solid roller system and are willing to go through the effort to properly set up the lash. Recommended hot lash in the 0.010" to 0.014" range but tighter can be run on iron blocks. Recommended to stay above 0.003" cold lash unless using block heaters as engine damage can occur if operated with the valves hung open on a cold day. CAMSHAFT TYPE
LOBE #
RATED DURATION
14872 14873
DURATION IN DEGREES
274
240
164
278
244
168
14874
282
248
14875
286
14876
290
14877 14917
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
110°
.385
.099
.083
.655
.693
.732
.387
.107
.091
.658
.697
.735
172
.389
.115
.098
.661
.700
.739
252
176
.391
.123
.107
.665
.704
.743
256
179
.393
.131
.115
.668
.707
.747
294
260
183
.395
.140
.123
.672
.711
.751
296
262
185
.396
.144
.127
.673
.713
.752
14878
298
264
187
.397
.148
.131
.675
.715
.754
14970
278
242
163
.377
.101
.086
.641
.679
.716
14971
282
246
167
.379
.108
.092
.644
.682
.720
14972
286
250
171
.381
.116
.101
.648
.686
.724
LSB Street Rated Duration @ .015" Tappet Lift
14973
290
254
175
.383
.124
.108
.651
.689
.728
14974
294
258
178
.385
.132
.116
.655
.693
.732
14975
298
262
182
.387
.140
.124
.658
.697
.735
Journal = R MI 28.3 (13.3/15.0)
14976
302
266
186
.389
.148
.132
.661
.700
.739
14977
306
270
190
.391
.156
.140
.665
.704
.743
14978
310
274
194
.393
.164
.148
.668
.707
.747
14927
312
276
195
.394
.168
.152
.670
.709
.749
14979
314
278
197
.395
.172
.156
.672
.711
.751
Journal = R MI 37.2 (13.0/14.2)
@ .200
TAPPET LIFT @ TDC 106°
LSA Street Rated Duration @ .015" Tappet Lift
@ .050
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
These lobes are similar to the Xtreme Energy™ Street Rollers and are optimized for the GM Duramax applications. Intake profiles are designed around a 1.37:1 ratio and exhaust profiles for a 1.69:1 ratio. The exhaust lobes are slightly less aggressive for the Duramax valve train system. These profiles are designed for .006" to .010" cold lash. The exhaust lobes go up in 14° increments compared to 12° for the intakes in order to reduce exhaust pumping losses in higher RPM applications. CAMSHAFT TYPE
Xtreme Energy™ Duramax Int. Rated Duration @ .006" Tappet Lift MI 28.4 (13.6/14.8)
Xtreme Energy™ Duramax Exh. Rated Duration @ .006" Tappet Lift MI 32.4 (15.7/16.7)
LOBE #
RATED DURATION
4884 4910 4886 4911 4888 4912 4904 4913
246 245 258 257 270 269 281 281
4894 4915 4896 4916 4898 4917 4908 4918
254 254 268 268 282 282 294 297
DURATION IN DEGREES @ .050
@ .200
185 185 197 197 209 209 221 221
106 111 119 123 132 135 144 147
@ .050
@ .200
188 188 202 202 216 216 228 228
84 95 101 110 117 123 129 136
LOBE LIFT
.306 .346 .329 .366 .350 .381 .363 .396 .249 .281 .266 .297 .284 .309 .294 .321
106°
110°
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.37
.019 .019 .030 .030 .044 .044 .062 .062
.014 .014 .022 .022 .034 .034 .050 .050
.420 .474 .451 .501 .480 .522 .497 .543
106°
110°
1.69
.028 .028 .041 .041 .057 .057 .073 .073
.022 .022 .033 .033 .047 .047 .062 .062
.420 .475 .450 .502 .480 .522 .497 .542
TAPPET LIFT @ TDC
SOLID ROLLER
XTREME ENERGY™ DURAMAX STREET ROLLERS
BASE DESIGN ROLLERS With over twenty years culmination of design and research, these lobes range from extra gentle to very aggressive. Included in this group are the High Torque Roller and High Torque Oval Roller Series used in the early 80s. CAMSHAFT TYPE
LOBE #
RATED DURATION
Base Design Rated Duration @ .020" Tappet Lift
1460 1603 1462 1463 1464 1465 1606 4034 1473 1466 1467 1607 1677 1597 4000 1609
285-2 285-3 286-1 290-2 295-2 295-3 295-4 295-5 296-1 296-2 296-3 300-2 302-1 304-10 305-2 305-3
DURATION IN DEGREES @ .050
@ .200
252 250 250 255 262 262 260 260 260 265 263 265 265 275 272 270
164 168 162 173 174 176 176 170 173 180 180 181 177 204 186 186
LOBE LIFT
.375 .420 .392 .420 .366 .390 .420 .394 .393 .400 .413 .420 .395 .391 .366 .418
TAPPET LIFT @ TDC 106°
110°
.110 .108 .112 .115 .128 .128 .122 .116 .124 .137 .131 .133 .132 .183 .146 .146
.096 .093 .096 .100 .114 .113 .107 .102 .108 .121 .115 .118 .117 .164 .132 .130
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.563 .630 .588 .630 .549 .585 .630 .591 .590 .600 .620 .630 .593 .587 .549 .627
.600 .672 .627 .672 .586 .624 .672 .630 .629 .640 .661 .672 .632 .626 .586 .669
.638 .714 .666 .714 .622 .663 .714 .670 .668 .680 .702 .714 .672 .665 .622 .711
Continued on page 74
SOLID ROLLER
SOLID ROLLER
BASE DESIGN ROLLERS Continued CAMSHAFT TYPE
Base Design Rated Duration @ .020" Tappet Lift
LOBE #
RATED DURATION
4035 4059 4242 1610 1611 1612 1613 1478 1468 1479 1614 1615 4066 4244 1617 1628 1658 1620 1621 1623 1626 1627 1486 4025 1469 4062 4087 1630 1631 1632 1633 1394 1659 1636 1639 1619 1392 1638 1640 1641 1643 1646 1657 1492
DURATION IN DEGREES @ .050
@ .200
305-4 306-1 306-2 307-3 308-2 309-2 310-2 310-4 311-3 312-2 312-3
272 270 273 276 275 276 280 275 279 279 279
184 186 190 196 191 196 195 189 199 197 196
315-2 316-1 316-2 316-3 324-4 320-1 320-2 320-3 320-5 321-2 321-3 321-4 322-1 322-2 323-5 324-2 325-4 326-2 326-3 326-5 327-5 328-1 328-3 329-5 319-2 319-3 329-2
280 276 284 282 287 281 288 286 287 286 282 284 282 288 287 286 288 293 290 288 290 286 290 292 285 285 290
329-6 330-8 331-1 332-3 332-10 334-1
290 294 289 296 292 297
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.394 .400 .416 .462 .452 .420 .545 .420 .462 .425 .453
.151 .145 .153 .158 .156 .163 .165 .152 .165 .167 .165
.135 .130 .137 .140 .139 .146 .147 .136 .148 .150 .148
.591 .600 .624 .693 .678 .630 .818 .630 .693 .638 .680
.630 .640 .666 .739 .723 .672 .872 .672 .739 .680 .725
.670 .680 .707 .785 .768 .714 .927 .714 .785 .723 .770
194 186 200 200 201 196 201 199 200 205 196 196 193 204 202 197 198 209 204 199 204 192 203 200 202 200 197
.420 .413 .433 .454 .423 .450 .434 .413 .420 .492 .462 .440 .427 .458 .460 .454 .440 .462 .476 .441 .460 .413 .454 .440 .456 .460 .390
.159 .150 .176 .173 .174 .164 .179 .172 .174 .182 .161 .170 .163 .185 .180 .171 .176 .193 .184 .174 .179 .163 .181 .177 .179 .173 .174
.143 .134 .159 .156 .159 .148 .163 .156 .159 .164 .145 .154 .147 .165 .164 .155 .160 .176 .167 .158 .163 .145 .165 .161 .161 .156 .160
.630 .620 .650 .681 .635 .675 .651 .620 .630 .738 .693 .660 .641 .687 .690 .681 .660 .693 .714 .714 .690 .620 .714 .660 .684 .690 .585
.672 .661 .693 .726 .677 .720 .694 .661 .672 .787 .739 .704 .683 .733 .736 .726 .704 .739 .762 .762 .736 .661 .762 .704 .730 .736 .624
.714 .702 .736 .772 .719 .765 .738 .702 .714 .836 .785 .748 .726 .779 .782 .772 .748 .785 .809 .809 .782 .702 .809 .748 .775 .782 .663
205 210 202 207 207 206
.471 .471 .471 .435 .480 .475
.185 .189 .175 .192 .188 .188
.168 .172 .158 .176 .170 .172
.707 .707 .707 .653 .720 .713
.754 .754 .754 .696 .768 .760
.801 .801 .801 .740 .816 .808
Continued on page 75
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
CAMSHAFT TYPE
LOBE #
RATED DURATION
Base Design Rated Duration @ .020" Tappet Lift
1647 1493 1648 1651 1652 1653 1654 1655 1656
334-4 334-7 335-3 340-5 342-10 348-5 352-3 356-6 372-1
DURATION IN DEGREES @ .050
@ .200
296 292 299 300 295 304 312 310 330
205 205 210 213 202 210 223 215 229
LOBE LIFT
.452 .481 .441 .480 .480 .455 .480 .480 .480
TAPPET LIFT @ TDC 106°
110°
.186 .184 .197 .202 .176 .201 .224 .209 .223
.170 .167 .181 .185 .159 .185 .207 .193 .206
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.678 .722 .662 .720 .720 .683 .720 .720 .720
.723 .770 .706 .768 .768 .728 .768 .768 .768
.768 .818 .750 .816 .816 .774 .816 .816 .816
SOLID ROLLER
BASE DESIGN ROLLERS Continued
HI-TECH™ ROLLERS These designs are typically used with high rocker ratios (1.65-1.75) and efficient cylinder heads. The Hi-Tech™ .400" is great for Big Block Chevy, Big Block Fords and Clevelands. Due to their lower acceleration rates, these lobe designs are also very well suited for small block, high endurance applications. CAMSHAFT TYPE
LOBE #
RATED DURATION
Hi-Tech™ Rated Duration @ .020" Tappet Lift MI 36.5 (18.8/17.7)
1461 4210 4211 4058
288-7 296-7 306-7 316-7
DURATION IN DEGREES @ .050
@ .200
251 259 269 279
167 175 182 190
LOBE LIFT
.400 .400 .400 .400
TAPPET LIFT @ TDC 106°
110°
.116 .129 .146 .161
.102 .114 .131 .146
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.600 .600 .600 .600
.640 .640 .640 .640
.680 .680 .680 .680
HI-TECH™ .420" EXHAUST ROLLERS These designs are used primarily on the exhaust side of the motor. The Hi-Tech™ .420" Exhaust Rollers offer controlled valve opening which promotes torque over broad ranges. CAMSHAFT TYPE
Hi-Tech™ .420" Exh. Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 37.0 (18.5/18.5)
LOBE #
RATED DURATION
4005 4007 4003 4027 4029 4023 4046 4045 4047 4019 4049 4224 4048
294-6 296-6 298-6 300-6 302-6 304-6 306-6 308-6 310-6 312-6 316-6 318-6 324-6A
DURATION IN DEGREES @ .050
@ .200
256 258 260 262 264 266 268 270 272 274 278 280 286
171 173 175 177 179 180 182 183 185 187 189 192 198
LOBE LIFT
.420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420
TAPPET LIFT @ TDC 106°
110°
.117 .123 .125 .130 .133 .137 .141 .144 .148 .151 .158 .161 .173
.103 .108 .111 .115 .117 .122 .126 .129 .133 .136 .142 .145 .157
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630
.672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672
.714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714
SOLID ROLLER
SOLID ROLLER
HI-TECH™ .420" ROLLERS
The Hi-Tech™ .420" Rollers are primarily used in oval track racing with good cylinder heads. The ramp designs are easy on valve springs yet produce good power. They are great for long rod motors. They are also popular in bracket and marine applications where power with durability is a must. Also available in Small Block Ford and Big Block Chevy or 50mm sizes to prevent "cam growth" in the grinding process, allowing the engine builder to have more control over the tuning process. CAMSHAFT TYPE
Hi-Tech™ .420" Exh. Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 37.0 (18.5/18.5)
LOBE #
RATED DURATION
4001 4004 4006 4009 4008 4013 4017 4015 4022 4020 4024 4018 4026 4016 4028 4030 4031 4032
284-5 286-5 288-5 290-5 292-5 294-5 296-5 298-5 300-5 302-5 304-5 306-5 308-5 310-5 312-5 314-5 316-5 318-5
DURATION IN DEGREES @ .050
@ .200
248 250 252 254 256 258 260 262 264 266 268 270 272 274 276 278 280 282
165 167 169 171 173 175 177 179 181 183 184 186 188 189 190 192 193 195
LOBE LIFT
.420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420 .420
TAPPET LIFT @ TDC 106°
110°
.108 .112 .116 .119 .123 .127 .131 .136 .140 .143 .146 .150 .154 .157 .160 .163 .166 .170
.094 .098 .101 .105 .108 .112 .116 .120 .124 .127 .130 .134 .138 .141 .144 .148 .151 .154
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630 .630
.672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .672
.714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714 .714
HI-TECH™ .440" INTAKE ROLLERS These lobes are to be used in medium to large cubic inch engines. The Hi-Tech .440" are designed with ported cylinder heads in mind and are easy on springs. These designs are very stable at high engine speeds. CAMSHAFT TYPE
Hi-Tech™ .440" Int. Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 36.7 (19.0/17.7)
LOBE #
RATED DURATION
3207 4076 4119 4077 4078 4079 4080 4081 4082
296-16 301-6 303-6 305-6 309-6 313-6 317-6 321-6 325-6
DURATION IN DEGREES @ .050
@ .200
260 264 266 268 272 276 280 284 287
178 181 183 184 187 189 192 195 198
LOBE LIFT
.440 .440 .440 .440 .440 .440 .440 .440 .440
TAPPET LIFT @ TDC 106°
110°
.132 .141 .144 .147 .153 .157 .161 .168 .173
.116 .125 .129 .132 .137 .142 .146 .153 .158
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.660 .660 .660 .660 .660 .660 .660 .660 .660
.704 .704 .704 .704 .704 .704 .704 .704 .704
.748 .748 .748 .748 .748 .748 .748 .748 .748
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SOLID ROLLER
SOLID ROLLER
HIGH TORQUE .420" EXHAUST ROLLERS
The High Torque .420" Exhaust series is primarily used in drag racing applications with or without ported heads and can be used with a variety of rocker ratios. CAMSHAFT TYPE
LOBE #
RATED DURATION
High Torque .420" Exh. Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 34.3 (14.8/19.5)
1660 1480 4070 4065
307-4 311-4 317-2 323-6
DURATION IN DEGREES @ .050
@ .200
275 279 283 288
192 194 197 200
LOBE LIFT
.420 .420 .420 .420
TAPPET LIFT @ TDC 106°
110°
.165 .173 .172 .177
.152 .156 .156 .161
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.630 .630 .630 .630
.672 .672 .672 .672
.714 .714 .714 .714
HIGH TORQUE .460" ROLLERS The High Torque .460" series is primarily used in drag racing applications with or without ported heads. They are less aggressive than the High Torque .440" designs. CAMSHAFT TYPE
LOBE #
RATED DURATION
High Torque .460" Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 32.6 (16.3/16.3)
1393
DURATION IN DEGREES @ .050
@ .200
319-7
285
200
4075
323-7
287
1395
327-7
290
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.460
.180
.163
.690
.736
.782
202
.460
.185
.169
.690
.736
.782
205
.460
.192
.176
.690
.736
.782
HIGH RATIO - HIGH RPM SUPER STOCK ROLLERS These profiles are designed to increase high RPM performance in NHRA Super Stock applications when coupled with a 1.8:1 to 2.0:1+ rocker arm. Optimized for the higher RPM capability of the latest Super Stock cylinder heads. CAMSHAFT TYPE
LOBE #
RATED DURATION
High Ratio-High RPM Super Stock Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 32.0 (14.7/17.3)
4480 4482 4483 4484 4485 4486
298 302 304 306 308 310
DURATION IN DEGREES @ .050
@ .200
266 270 272 274 276 278
182 186 188 189 191 193
LOBE LIFT
.414 .414 .414 .414 .416 .418
TAPPET LIFT @ TDC 106°
110°
.136 .143 .147 .151 .155 .160
.119 .127 .131 .135 .139 .143
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
.745 .745 .745 .745 .749 .752
.787 .787 .787 .787 .790 .794
.828 .828 .828 .828 .832 .836
SOLID ROLLER
SOLID ROLLER
NC ROLLERS Designed with aggressive opening side of the RT Series lobes and the easier closing rate of the ever popular Hi-Tech™ -5 series, the NC series allows good engine speed, stability and durability. This fast open, slower closing design works very well on the exhaust side of many applications. CAMSHAFT TYPE
NC Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 32.0 (14.5/17.5)
LOBE #
RATED DURATION
4151 4152 4150 4153 4149 4145 4147 4144 4146 4143 4148 4169 4142
284 286 288 290 292 295 296 298 300 302 304 306 310
DURATION IN DEGREES @ .050
@ .200
252 254 256 258 260 262 264 266 268 270 272 274 278
172 173 177 178 181 183 183 185 187 190 192 195 195
LOBE LIFT
.405 .405 .415 .415 .421 .421 .421 .425 .430 .430 .430 .430 .430
TAPPET LIFT @ TDC 106°
110°
.115 .117 .123 .125 .131 .138 .140 .143 .146 .153 .158 .162 .165
.099 .101 .107 .109 .114 .122 .123 .127 .130 .136 .141 .145 .149
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.608 .608 .623 .623 .632 .632 .632 .638 .645 .645 .645 .645 .645
.648 .648 .664 .664 .674 .674 .674 .680 .688 .688 .688 .688 .688
.689 .689 .706 .706 .716 .716 .716 .723 .731 .731 .731 .731 .731
NSC ROLLERS The NSC series is very similar to the original NC series but uses a smoother -6 style closing ramp. This fast open, slower closing design works very well on the exhaust side of many applications, especially those that are larger displacement or higher engine speeds than where the original NC designs would be used. CAMSHAFT TYPE
NSC Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 33.0 (14.4/18.6)
LOBE #
RATED DURATION
4163 4167 4168 4162 4160 4164 4165 4166
309 311 313 315 317 319 321 323
DURATION IN DEGREES @ .050
@ .200
276 278 280 282 284 286 288 290
195 196 198 200 201 203 205 207
LOBE LIFT
.440 .440 .440 .440 .440 .440 .440 .440
TAPPET LIFT @ TDC 106°
110°
.167 .170 .174 .178 .181 .185 .189 .193
.150 .154 .158 .162 .165 .169 .173 .177
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.660 .660 .660 .660 .660 .660 .660 .660
.704 .704 .704 .704 .704 .704 .704 .704
.748 .748 .748 .748 .748 .748 .748 .748
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SOLID ROLLER
SOLID ROLLER
RZ ROLLERS
The RZ Rollers are designed for high RPM circle track, drag race and endurance applications that benefit from higher lift while requiring stability and reliability. Designed for 1.6:1 to 1.8:1 rockers, these profiles incorporate the latest developments in high RPM and high rocker ratio developments. CAMSHAFT TYPE
RZ Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 33.0 (15.0/18.0)
LOBE #
RATED DURATION
4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4276 4277
RZ291 RZ293 RZ295 RZ297 RZ299 RZ301 RZ303 RZ305 RZ307 RZ309 RZ311 RZ313 RZ315 RZ317 RZ319 RZ321 RZ325 RZ329
DURATION IN DEGREES @ .050
@ .200
258 260 262 264 266 268 270 272 274 276 278 280 282 284 286 288 292 296
172 174 176 178 180 182 184 186 188 190 192 194 196 197 199 201 205 208
LOBE LIFT
.427 .428 .430 .430 .431 .432 .433 .434 .435 .436 .437 .438 .439 .440 .441 .442 .444 .446
TAPPET LIFT @ TDC 106°
110°
.118 .122 .126 .129 .133 .137 .141 .145 .149 .153 .157 .161 .164 .168 .172 .176 .183 .191
.104 .107 .111 .114 .118 .122 .125 .129 .133 .137 .141 .145 .148 .152 .156 .160 .167 .175
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.641 .642 .645 .645 .647 .648 .650 .651 .653 .654 .656 .657 .659 .660 .662 .663 .666 .669
.683 .685 .688 .688 .690 .691 .693 .694 .696 .698 .699 .701 .702 .704 .706 .707 .710 .714
.726 .728 .731 .731 .733 .734 .736 .738 .740 .741 .743 .745 .746 .748 .750 .751 .755 .758
RZ LOW LIFT ROLLERS These lower lift versions of the RZ family work very well in high endurance applications where maximum valve lift needs to be limited to ensure maximum valve spring life. CAMSHAFT TYPE
RZ Low Lift Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 33.0 (15.0/18.0)
LOBE #
RATED DURATION
2311 2314 2315 4294 2318 4293 4295 4283 4286 4284 4278 4285 4287 4296 4279 2735 2298
275 283 287 289 291 291 293 295 295 297 299 301 301 303 305 315 317
DURATION IN DEGREES @ .050
@ .200
242 250 254 256 258 258 260 262 262 264 266 268 268 270 272 282 284
154 161 164 167 168 171 171 171 175 174 178 178 180 181 182 194 193
LOBE LIFT
.370 .370 .370 .390 .370 .400 .390 .370 .400 .375 .400 .380 .400 .385 .380 .420 .380
TAPPET LIFT @ TDC 106°
110°
.090 .103 .110 .113 .117 .118 .121 .124 .125 .128 .133 .135 .136 .139 .143 .164 .163
.077 .089 .096 .099 .103 .103 .106 .110 .110 .113 .118 .121 .121 .125 .128 .148 .149
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.555 .555 .555 .585 .555 .600 .585 .555 .600 .563 .600 .570 .600 .578 .570 .630 .570
.592 .592 .592 .624 .592 .640 .624 .592 .640 .600 .640 .608 .640 .616 .608 .672 .608
.629 .629 .629 .663 .629 .680 .663 .629 .680 .638 .680 .646 .680 .655 .646 .714 .646
SOLID ROLLER
SOLID ROLLER
AS ENDURANCE ROLLERS The AS Endurance Roller lobe family is for use in 24-hour or longer endurance roller cam applications or where a slow camshaft is desired to reduce power or shape the torque curve. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
ASI Rated Duration @ .020" Tappet Lift
20540 20541 20542
277 281 285
244 248 252
153 157 161
.360 .360 .360
.094 .101 .108
.082 .088 .094
.576 .576 .576
.612 .612 .612
.648 .648 .648
MI 33.1 (15.7/17.4)
20519 20520
289 293
256 260
167 171
.380 .380
.115 .122
.101 .108
.608 .608
.646 .646
.684 .684
ASX Rated Duration @ .020" Tappet Lift
20525
300
266
175
.380
.132
.118
.608
.646
.684
ALI Rated Duration @ .020" Tappet Lift
20515 20521 20522
284 288 292
252 256 260
166 170 173
.400 .400 .400
.111 .117 .125
.097 .103 .110
.640 .640 .640
.680 .680 .680
.720 .720 .720
ALX Rated Duration @ .020" Tappet Lift
20527
300
266
177
.400
.134
.119
.640
.680
.720
20572
255
222
133
.336
.061
.050
.538
.571
.605
20574
263
230
140
.336
.078
.066
.538
.571
.605
ALL Rated Duration @ .020" Tappet Lift
LOBE LIFT
SRI SRX HIGH RATIO ROLLER The SRI and SRX are extremely smooth high rocker ratio designs, especially suited for engines with very high ratios or any application than needs a very smooth profile. CAMSHAFT TYPE
LOBE #
RATED DURATION
SRI Rated Duration @ .020" Tappet Lift MI 35.6 (17.1/18.5)
12260
SRX Rated Duration @ .020" Tappet Lift MI 35.2 (17.0/18.2)
DURATION IN DEGREES @ .050
@ .200
291
255
163
12261
293
257
12262
295
12266
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.9 2.1 2.3
106°
110°
.3925
.111
.098
.746
.824
.903
165
.3925
.115
.101
.746
.824
.903
259
167
.3925
.118
.105
.746
.824
.903
305
270
178
.4050
.136
.122
.770
.851
.932
12267
307
272
180
.4050
.140
.125
.770
.851
.932
12268
309
274
182
.4050
.143
.129
.770
.851
.932
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
RT ROLLERS
The RT Series provides shorter seat timing and more area than our Hi-Tech™ .420" Series. This results in great torque and power potential. Available in Small Block Ford and Big Block Chevy or 50mm sizes to prevent "cam growth" in the grinding process, allowing the engine builder to have more control over the tuning process of the cam. CAMSHAFT TYPE
RT Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 30.6 (14.4/16.2)
LOBE #
RATED DURATION
4125 4121 4123 4124 4126 4127 4130 4128 4129 4131 4132 4133 4134 4135 4136 4137 4139 4138
RT270-1 RT274-1 RT276-2 RT278-3 RT280-1 RT282-1 RT284-1 RT286-1 RT288-1 RT290-1 RT292-1 RT294-1 RT296-1 RT298-1 RT300-1 RT302-1 RT304-1 RT308-1
DURATION IN DEGREES @ .050
@ .200
240 244 246 248 250 252 254 256 258 260 262 264 266 268 270 272 274 278
163 167 169 171 173 175 177 179 181 183 185 186 189 190 191 193 195 197
LOBE LIFT
.406 .410 .412 .414 .416 .418 .421 .423 .426 .430 .430 .430 .430 .435 .435 .435 .435 .435
TAPPET LIFT @ TDC 106°
110°
.093 .101 .105 .107 .113 .117 .120 .125 .131 .134 .140 .142 .148 .150 .154 .158 .162 .168
.079 .086 .089 .092 .097 .101 .104 .109 .114 .117 .123 .125 .130 .132 .137 .141 .144 .151
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.609 .615 .618 .621 .624 .627 .632 .635 .639 .645 .645 .645 .645 .653 .653 .653 .653 .653
.650 .656 .659 .662 .666 .669 .674 .677 .682 .688 .688 .688 .688 .696 .696 .696 .696 .696
.690 .697 .700 .704 .707 .711 .716 .719 .724 .731 .731 .731 .731 .740 .740 .740 .740 .740
CR ROLLERS The CR Series profiles are excellent for high RPM, high rocker ratio applications where good valve train components can be used. The smaller profiles work well in restricted applications where extended life is required, and the larger profiles are excellent in high RPM open applications. CAMSHAFT TYPE
CR Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 31.2 (14.5/16.7)
LOBE #
RATED DURATION
4345 4346 4347 4348 4349 4382 4383 4384 4385 4386 2486 4387 4388 2488
CR281 CR283 CR285 CR287 CR289 CR291 CR293 CR295 CR297 CR299 299 CR301 CR303 303
DURATION IN DEGREES @ .050
@ .200
250 252 254 256 258 260 262 264 266 268 268 270 272 272
168 170 172 174 176 178 179 181 183 185 186 186 188 190
LOBE LIFT
.395 .395 .395 .395 .395 .395 .395 .395 .395 .395 .420 .395 .395 .420
TAPPET LIFT @ TDC 106°
110°
.111 .115 .119 .123 .127 .131 .135 .139 .143 .147 .147 .150 .154 .156
.096 .100 .104 .107 .111 .115 .119 .123 .127 .131 .131 .134 .138 .139
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
.672 .672 .672 .672 .672 .672 .672 .672 .672 .672 .714 .672 .672 .714
.691 .691 .691 .691 .691 .691 .691 .691 .691 .691 .735 .691 .691 .735
.711 .711 .711 .711 .711 .711 .711 .711 .711 .711 .756 .711 .711 .756
Continued on page 82
SOLID ROLLER
SOLID ROLLER CR ROLLERS Continued CAMSHAFT TYPE
CR Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 31.2 (14.5/16.7)
LOBE #
RATED DURATION
4389 2489 4390 2490 4391 4682 2492 4683 4684 2494 4685 4686 4687
CR305 305 CR307 307 CR309 CR311 311 CR313 CR315 315 CR317 CR319 CR321
DURATION IN DEGREES @ .050
@ .200
274 274 276 276 278 280 280 282 284 284 286 288 290
190 192 192 194 193 195 198 197 199 201 200 202 204
LOBE LIFT
.395 .420 .395 .420 .395 .395 .420 .395 .395 .420 .395 .395 .395
TAPPET LIFT @ TDC 106°
110°
.158 .160 .161 .164 .165 .169 .172 .172 .176 .180 .180 .183 .187
.142 .143 .146 .147 .149 .153 .155 .157 .161 .163 .165 .168 .172
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
.672 .714 .672 .714 .672 .672 .714 .672 .672 .714 .672 .672 .672
.691 .735 .691 .735 .691 .691 .735 .691 .691 .735 .691 .691 .691
.711 .756 .711 .756 .711 .711 .756 .711 .711 .756 .711 .711 .711
CR LIFT RULE ROLLERS These low lift designs are based on the CR Rollers and are specifically designed for lift rule application such as Rev-Oil Pro Cup. Typically they will be used with either 1.65:1 or 1.7:1 rocker ratios, but would be stable with up to 1.8:1 ratios. CAMSHAFT TYPE
CR Lift Rule .367" Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 31.2 (14.5/16.7)
CR Lift Rule .378" Rated Duration @ .020" Tappet Lift Journal = S,B,F,R…
LOBE #
RATED DURATION
4436 4427 4428 4429 4430 4431 4432 4433 4438 4445 4447 4448 4449 4450 4451 4452 4453
DURATION IN DEGREES @ .050
@ .200
275 279 283 287 291 295 299 303 307
244 248 252 256 260 264 268 272 276
161 165 168 172 175 179 182 186 189
283 287 289 291 293 295 297 299
252 256 258 260 262 264 166 268
168 172 175 175 178 179 182 183
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.9 2.1 2.3
106°
110°
.367 .367 .367 .367 .367 .367 .367 .367 .367
.100 .107 .115 .123 .130 .138 .146 .153 .159
.085 .092 .100 .107 .115 .122 .130 .137 .145
.587 .587 .587 .587 .587 .587 .587 .587 .587
.606 .606 .606 .606 .606 .606 .606 .606 .606
.624 .624 .624 .624 .624 .624 .624 .624 .624
.378 .378 .378 .378 .378 .378 .378 .378
.115 .123 .127 .131 .135 .138 .142 .146
.100 .107 .111 .115 .119 .123 .126 .130
.605 .605 .605 .605 .605 .605 .605 .605
.624 .624 .624 .624 .624 .624 .624 .624
.643 .643 .643 .643 .643 .643 .643 .643
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SOLID ROLLER
SOLID ROLLER
RX ROLLERS
These are similar to the RT Series but are designed for a higher RPM operating range. These were developed to allow the performance of RT designs in applications that operate well over 8400 RPM, such as the NASCAR engines. RX profiles were developed using dynamic testing to ensure stability over 9000 RPM, even when coupled with a 1.7:1 rocker arm. CAMSHAFT TYPE
RX Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 32.6 (15.5/17.1)
LOBE #
RATED DURATION
4301 4302 4303 4304 4305 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4340 4341
286 288 290 292 294 296 298 300 302 304 306 308 310 312 314 316 318 320 322
DURATION IN DEGREES @ .050
@ .200
253 255 257 259 261 263 265 267 269 271 273 275 277 279 281 283 285 287 289
172 174 176 177 179 181 183 185 187 189 191 193 195 197 199 201 203 205 207
LOBE LIFT
.427 .428 .429 .430 .431 .432 .433 .434 .435 .436 .437 .438 .439 .440 .440 .440 .440 .440 .440
TAPPET LIFT @ TDC 106°
110°
.114 .118 .122 .126 .130 .134 .139 .143 .147 .151 .155 .160 .164 .168 .172 .176 .180 .185 .189
.099 .103 .107 .110 .114 .118 .122 .126 .130 .134 .138 .143 .147 .151 .155 .159 .163 .167 .172
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.641 .642 .644 .645 .647 .648 .650 .651 .653 .654 .656 .657 .659 .660 .660 .660 .660 .660 .660
.683 .685 .686 .688 .690 .691 .693 .694 .696 .698 .699 .701 .702 .704 .704 .704 .704 .704 .704
.726 .728 .729 .731 .733 .734 .736 .738 .740 .741 .743 .745 .746 .748 .748 .748 .748 .748 .748
TC ROLLERS The TC lobes are specially designed to be stable in small base circle applications or where short duration and high lift are required. CAMSHAFT TYPE
TC Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 31.3 (15.4/15.9)
LOBE #
RATED DURATION
11460 11462 11464 11466 11468 11470 11472 11474 11476
267 271 275 279 283 287 291 295 299
DURATION IN DEGREES @ .050
@ .200
236 240 244 248 252 256 260 264 268
156 160 164 168 172 176 180 184 188
LOBE LIFT
.420 .424 .428 .432 .436 .440 .444 .448 .452
TAPPET LIFT @ TDC 106°
110°
.085 .092 .099 .106 .114 .122 .130 .138 .146
.072 .079 .085 .092 .099 .106 .114 .122 .130
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.630 .636 .642 .648 .654 .660 .666 .672 .678
.672 .678 .685 .691 .698 .704 .710 .717 .723
.714 .721 .728 .734 .741 .748 .755 .762 .768
SOLID ROLLER
SOLID ROLLER
ZT ROLLERS The ZT Rollers are a high rocker ratio, high RPM series designed to take advantage of valve spring developments that allow valve lifts up to and above .750" in endurance applications. These are designed for NASCAR and other endurance applications that have similar RPM and lift requirements. CAMSHAFT TYPE
ZT Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 31.5 (15.4/16.2)
LOBE #
RATED DURATION
4814 4815 4816 4817 4818 4819 4820 4821 4822 4823 4824 4826 4827
290 292 294 296 298 300 302 304 306 308 310 312 314
DURATION IN DEGREES @ .050
@ .200
258 260 262 264 266 268 270 272 274 276 278 280 282
175 177 179 181 182 184 186 188 190 192 194 196 198
LOBE LIFT
.406 .407 .408 .409 .410 .411 .412 .413 .412 .416 .418 .418 .420
TAPPET LIFT @ TDC 106°
110°
.124 .128 .133 .137 .141 .145 .149 .153 .157 .161 .165 .169 .173
.110 .114 .117 .121 .125 .129 .133 .137 .141 .144 .149 .152 .157
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
.690 .692 .694 .695 .697 .699 .700 .702 .700 .707 .711 .711 .714
.711 .712 .714 .716 .718 .719 .721 .723 .721 .728 .732 .732 .735
.731 .733 .734 .736 .738 .740 .742 .743 .742 .749 .752 .752 .756
ZS ROLLERS The ZS Rollers are a high ratio roller series for restricted applications limited to below 8400 RPM. These are very good for applications that benefit from higher lift than the HRR series. These profiles work well with the new generation valve springs such as COMP Cams® #26099 and #26091. The ZS II lobes are the same as the .413" lobe lift versions except these have increasing lobe lift as the duration increases. CAMSHAFT TYPE
ZS .413" Lift Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 30.4 (14.8/15.6)
ZS II Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 30.4 (14.8/15.6)
LOBE #
RATED DURATION
4402 4404 4405 4406 4407 4408 4409 4419 4416 4417 4418 2950 2952 2953 2954 14255 14256 14257 2958
DURATION IN DEGREES @ .050
@ .200
284 288 290 292 294 296 298 300 302 304 306
254 258 260 262 264 266 268 270 272 274 276
175 179 181 183 184 186 188 190 192 193 195
280 284 286 288 290 292 294 296
250 254 256 258 260 262 264 266
172 176 178 180 182 184 186 188
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
106°
110°
.413 .413 .413 .413 .413 .413 .413 .413 .413 .413 .413
.122 .130 .134 .139 .143 .147 .151 .155 .159 .163 .167
.106 .114 .118 .122 .126 .130 .134 .138 .142 .146 .150
.702 .702 .702 .702 .702 .702 .702 .702 .702 .702 .702
.723 .723 .723 .723 .723 .723 .723 .723 .723 .723 .723
.743 .743 .743 .743 .743 .743 .743 .743 .743 .743 .743
.420 .424 .426 .428 .430 .432 .433 .434
.114 .122 .126 .131 .135 .139 .143 .147
.098 .106 .110 .114 .118 .122 .126 .130
.714 .721 .724 .728 .731 .734 .736 .738
.735 .742 .746 .749 .753 .756 .758 .760
.756 .763 .767 .770 .774 .778 .779 .781
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SOLID ROLLER
SOLID ROLLER
TD, TJ & TJS ROLLERS
These TD designs are excellent for high ratio, four gauge, 390 carb rules, such as NASCAR applications. The TJs have slightly more lift but are a little smoother while the TJS rollers are very similar to the TJs except for a slightly softer closing ramp. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
2978 2979 2980 2981 2982 4321 2983 2984 2985 4327 4328 4329 2989
288 290 292 294 296 298 300 302 304 306 308 310 312
258 260 262 264 266 268 270 272 274 276 278 280 282
176 178 180 182 184 186 188 190 192 193 195 197 199
.411 .412 .413 .414 .415 .416 .418 .420 .421 .424 .426 .428 .430
.127 .131 .135 .139 .143 .147 .151 .156 .159 .163 .167 .171 .175
.112 .116 .119 .123 .127 .131 .135 .139 .143 .147 .151 .155 .159
.699 .700 .702 .704 .706 .707 .711 .714 .716 .721 .724 .728 .731
.719 .721 .723 .725 .726 .728 .732 .735 .737 .742 .746 .749 .753
.740 .742 .743 .745 .747 .749 .752 .756 .758 .763 .767 .770 .774
TJ Rated Duration @ .020" Tappet Lift Journal = S,B,F,R…
2962 2963 2964 2965
296 298 300 302
266 268 270 272
184 185 187 189
.420 .422 .424 .426
.143 .147 .151 .156
.127 .131 .135 .139
.714 .717 .721 .724
.735 .739 .742 .746
.756 .760 .763 .767
TJS Rated Duration @ .020" Tappet Lift
2881 2882 2885
297 299 305
266 268 274
183 185 191
.419 .421 .427
.412 .146 .158
.126 .130 .142
.712 .716 .726
.733 .737 .747
.754 .758 .769
CAMSHAFT TYPE
TD Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 30.5 (14.8/15.7)
LOBE LIFT
TS ROLLERS These are an additional series of high rocker ratio profiles that are similar to both the ZT and ZS series, but these are designed for slightly less rocker ratio. CAMSHAFT TYPE
TS Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 31.0 (15.4/15.6)
LOBE #
RATED DURATION
4836 4837 4838 4839 4840 4841 4842
293 295 297 299 301 303 305
DURATION IN DEGREES @ .050
@ .200
262 264 266 268 270 272 274
181 183 185 187 189 191 192
LOBE LIFT
.421 .422 .423 .425 .426 .427 .428
TAPPET LIFT @ TDC 106°
110°
.137 .141 .145 .149 .153 .157 .161
.121 .125 .129 .133 .137 .141 .145
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
.716 .717 .719 .723 .724 .726 .728
.737 .739 .740 .744 .746 .747 .749
.758 .760 .761 .765 .767 .769 .770
SOLID ROLLER
SOLID ROLLER
HIGH RATIO RESTRICTED ROLLERS The HRR designs, when coupled with high rocker ratios, result in extremely quick valve action. 8100 RPM maximum with light valve train. Very good in restricted applications. CAMSHAFT TYPE
High Ratio Restricted Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 30.0 (14.0/16.0)
LOBE #
RATED DURATION
4358 4359 4361 4362 4363 4364 4198 4365 4366 4199 4367 4196 4368 4369 4370 4175 4371 4372 4373 4374 4375 4376 4377 4378 4379 4380
HRR260 HRR262 HRR264 HRR266 HRR268 HRR270 272 HRR272 HRR274 276 HRR276 278 HRR278 HRR280 HRR282 282 HRR284 HRR286 HRR288 HRR290 HRR292 HRR294 HRR296 HRR298 HRR300 HRR302
DURATION IN DEGREES @ .050
@ .200
230 232 234 236 238 240 242 242 244 246 246 248 248 250 252 252 254 256 258 260 262 264 266 268 270 272
152 154 156 158 160 162 163 164 166 167 168 169 170 172 173 172 175 177 179 180 182 184 186 188 190 192
LOBE LIFT
.374 .377 .380 .383 .386 .389 .380 .392 .396 .380 .396 .380 .396 .396 .396 .380 .396 .396 .396 .396 .396 .396 .396 .396 .396 .396
TAPPET LIFT @ TDC 106°
110°
.078 .082 .085 .089 .093 .097 .101 .101 .105 .109 .109 .113 .113 .117 .121 .121 .125 .129 .133 .137 .141 .145 .149 .153 .158 .162
.065 .068 .071 .075 .078 .082 .085 .085 .089 .093 .093 .097 .097 .101 .104 .105 .108 .112 .116 .120 .124 .128 .133 .137 .141 .145
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.75 1.8
.636 .641 .646 .651 .656 .661 .646 .666 .673 .646 .673 .646 .673 .673 .673 .646 .673 .673 .673 .673 .673 .673 .673 .673 .673 .673
.655 .660 .665 .670 .676 .681 .665 .686 .693 .665 .693 .665 .693 .693 .693 .665 .693 .693 .693 .693 .693 .693 .693 .693 .693 .693
.673 .679 .684 .689 .695 .700 .684 .706 .713 .684 .713 .684 .713 .713 .713 .684 .713 .713 .713 .713 .713 .713 .713 .713 .713 .713
RC ROLLERS The RC rollers are designed to be faster off the seat than the RT profiles with more area than the High Torque .440" profiles. These are slightly less aggressive than the TK profiles. Very good for Sprint Car and Late Model applications. Also used in some hydraulic roller applications. CAMSHAFT TYPE
RC Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 30.0 (14.0/16.0)
LOBE #
RATED DURATION
4176 4178 4180 4181 4182 4183 4184 4185 4186
280 284 288 290 292 294 296 298 300
DURATION IN DEGREES @ .050
@ .200
250 254 258 260 262 264 266 268 270
175 178 182 184 186 188 190 192 194
LOBE LIFT
.425 .425 .430 .430 .430 .430 .435 .435 .435
TAPPET LIFT @ TDC 106°
110°
.118 .127 .136 .140 .144 .149 .153 .158 .162
.101 .110 .118 .122 .127 .131 .135 .140 .144
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.638 .638 .645 .645 .645 .645 .653 .653 .653
.680 .680 .688 .688 .688 .688 .696 .696 .696
.723 .723 .731 .731 .731 .731 .740 .740 .740
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SOLID ROLLER
SOLID ROLLER
RP ROLLERS
The RP Rollers are a high ratio roller series for restricted applications limited to below 8400 RPM. These are based off of the latest flat tappet restrictor plate designs but have increased area as allowed with roller tappets. For use with 1.8 to 1.95:1 rocker ratios. CAMSHAFT TYPE
RP Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 30.0 (15.0/15.0)
LOBE #
RATED DURATION
2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520
270 272 274 276 278 280 282 284 286 288 290 292 294 296
DURATION IN DEGREES @ .050
@ .200
240 242 244 246 248 250 252 254 256 258 260 262 264 266
159 161 163 165 166 168 170 172 173 175 177 179 180 182
LOBE LIFT
.381 .381 .381 .381 .381 .381 .381 .381 .381 .381 .381 .381 .381 .381
TAPPET LIFT @ TDC 106°
110°
.093 .097 .101 .104 .108 .112 .115 .119 .123 .127 .131 .135 .138 .142
.080 .083 .086 .090 .093 .097 .101 .104 .108 .112 .115 .119 .123 .127
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.85 1.9
.686 .686 .686 .686 .686 .686 .686 .686 .686 .686 .686 .686 .686 .686
.705 .705 .705 .705 .705 .705 .705 .705 .705 .705 .705 .705 .705 .705
.724 .724 .724 .724 .724 .724 .724 .724 .724 .724 .724 .724 .724 .724
SP ROLLERS The SP Rollers are a high ratio roller series for restricted applications limited to below 8200 RPM. These lobes are more aggressive than the RP series and can be used successfully with lower rocker ratios. For use with 1.7 to 1.9:1 rocker ratios. Also used in some hydraulic roller applications. CAMSHAFT TYPE
SP Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 28.2 (13.8/14.4)
LOBE #
RATED DURATION
1514 1515 4793 4784 4785 4788 4789 4830 4831
264 268 273 275 277 279 281 283 285
DURATION IN DEGREES @ .050
@ .200
236 240 245 247 249 251 253 255 257
158 161 166 168 170 172 174 176 178
LOBE LIFT
.374 .374 .378 .380 .382 .384 .386 .388 .390
TAPPET LIFT @ TDC 106°
110°
.089 .096 .108 .112 .116 .120 .124 .128 .133
.074 .081 .092 .096 .100 .104 .108 .112 .116
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.636 .636 .643 .646 .649 .653 .656 .660 .663
.673 .673 .680 .684 .688 .691 .695 .698 .702
.711 .711 .718 .722 .726 .730 .733 .737 .741
SOLID ROLLER
SOLID ROLLER
HIGH TORQUE .406" ROLLERS The High Torque .406", when coupled with higher rocker ratios (1.7 and up), result in very aggressive valve motion. These provide excellent torque curves and great responsiveness. The smaller lobes are great for restricted applications and the larger lobes provide stronger alternatives to the High Torque .440" profiles when coupled with higher rocker ratios to achieve equivalent valve lift.. CAMSHAFT TYPE
High Torque .406" Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 32.8 (16.4/16.4)
LOBE #
RATED DURATION
4600 4601 1477 4209 4206 4207 4208 4205 1481
280-6 284-6 288-6 292-6 296-4 300-7 304-7 308-7 312-14
DURATION IN DEGREES @ .050
@ .200
248 252 256 260 264 268 272 276 280
169 172 176 180 184 188 192 195 199
LOBE LIFT
.406 .406 .406 .406 .406 .406 .406 .406 .406
TAPPET LIFT @ TDC 106°
110°
.106 .114 .122 .131 .139 .148 .156 .164 .173
.091 .098 .106 .114 .122 .131 .136 .147 .156
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.609 .609 .609 .609 .609 .609 .609 .609 .609
.650 .650 .650 .650 .650 .650 .650 .650 .650
.690 .690 .690 .690 .690 .690 .690 .690 .690
HIGH TORQUE .440" ROLLERS The High Torque .406", when coupled with higher rocker ratios (1.7 and up), result in very aggressive valve motion. These provide excellent torque curves and great responsiveness. The smaller lobes are great for restricted applications and the larger lobes provide stronger alternatives to the High Torque .440" profiles when coupled with higher rocker ratios to achieve equivalent valve lift.. CAMSHAFT TYPE
High Torque .440" Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 32.6 (16.3/16.3)
LOBE #
RATED DURATION
4217 4216 4240 4241 4243 4245 4252 4253 4213 4214 4254
278-8 280-8 284-8 288-8 292-8 296-8 300-8 304-8 308-8 312-8 316-8
DURATION IN DEGREES @ .050
@ .200
250 252 256 260 264 268 272 276 280 284 288
174 176 178 182 186 190 194 197 201 205 210
LOBE LIFT
.440 .440 .440 .440 .440 .440 .440 .440 .440 .440 .440
TAPPET LIFT @ TDC 106°
110°
.115 .119 .122 .131 .140 .149 .157 .177 .185 .191 .198
.099 .102 .105 .114 .123 .131 .139 .160 .167 .174 .180
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.660 .660 .660 .660 .660 .660 .660 .660 .660 .660 .660
.704 .704 .704 .704 .704 .704 .704 .704 .704 .704 .704
.748 .748 .748 .748 .748 .748 .748 .748 .748 .748 .748
HXL ROLLERS The HXL Rollers are intended for high lift applications that require maximum torque and extended RPM. These fall somewhere in between the RX and TK Series in terms of aggressiveness but provide more lobe lift. They are closest to the High Torque .440" lobes but have incorporated our latest profile advancements that should allow higher engine speeds and improved dynamics. CAMSHAFT TYPE
HXL Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 29.7 (14.6/15.1)
LOBE #
RATED DURATION
2217 2222 2223 2224 2225 2226 2227
279 281 283 285 287 289 291
DURATION IN DEGREES @ .050
@ .200
250 252 254 256 258 260 262
173 175 177 179 181 183 185
LOBE LIFT
.432 .434 .436 .438 .440 .442 .444
TAPPET LIFT @ TDC 106°
110°
.114 .118 .122 .126 .130 .135 .139
.098 .102 .106 .110 .114 .118 .122
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.691 .694 .698 .701 .704 .707 .710
.734 .738 .741 .745 .748 .751 .755
.778 .781 .785 .788 .792 .796 .799
Continued on page 89
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SOLID ROLLER
HXL ROLLERS Continued
HXL Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 29.7 (14.6/15.1)
LOBE #
RATED DURATION
2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2208 2209 2210
293 295 297 299 301 303 305 307 309 311 313 315 317
DURATION IN DEGREES @ .050
@ .200
264 266 268 270 272 274 276 278 280 282 284 286 288
187 189 191 193 195 197 199 201 202 204 206 208 210
LOBE LIFT
.446 .448 .450 .452 .454 .454 .454 .454 .454 .454 .454 .454 .454
TAPPET LIFT @ TDC 106°
110°
.144 .148 .152 .157 .161 .166 .170 .174 .178 .183 .187 .191 .195
.126 .130 .135 .139 .143 .148 .152 .156 .161 .165 .169 .173 .177
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.714 .717 .720 .723 .726 .726 .726 .726 .726 .726 .726 .726 .726
.758 .762 .765 .768 .772 .772 .772 .772 .772 .772 .772 .772 .772
.803 .806 .810 .814 .817 .817 .817 .817 .817 .817 .817 .817 .817
SOLID ROLLER
CAMSHAFT TYPE
QRI ROLLERS The QRI series are higher lift lobe profiles based off a modern optimized combination of the TK, TC, HXL and new QNI designs. Designed for STD CS journals and/or 0.900" BCD and up to 1.7:1 ratios. CAMSHAFT TYPE
QRI Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 28.3 (13.9/14.4)
LOBE #
RATED DURATION
11534 11535 11536 11537 11508 11509 11510 11511 11512 11513 11514 11515 11516 11517 11518 11519 11520
262 264 266 268 270 272 274 276 278 280 282 284 286 288 290 292 294
DURATION IN DEGREES @ .050
@ .200
234 236 238 240 242 244 246 248 250 252 254 256 258 260 262 264 266
160 162 164 166 168 170 172 174 176 178 180 182 184 186 188 190 192
LOBE LIFT
.441 .443 .445 .447 .449 .451 .453 .455 .457 .459 .461 .463 .465 .467 .469 .471 .473
TAPPET LIFT @ TDC 106°
110°
.086 .089 .093 .097 .101 .105 .109 .114 .118 .122 .127 .131 .136 .140 .145 .149 .154
.071 .075 .078 .082 .086 .089 .093 .097 .101 .105 .109 .114 .118 .122 .127 .131 .136
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.662 .665 .668 .671 .674 .677 .680 .683 .686 .689 .692 .695 .698 .701 .704 .707 .710
.706 .709 .712 .715 .718 .722 .725 .728 .731 .734 .738 .741 .744 .747 .750 .754 .757
.750 .753 .757 .760 .763 .767 .770 .774 .777 .780 .784 .787 .791 .794 .797 .801 .804
SOLID ROLLER
SOLID ROLLER
HXX ROLLERS The HXX Rollers are exhaust optimized versions of our popular HXL Intake lobes.. CAMSHAFT TYPE
HXX Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 29.7 (14.6/15.1)
LOBE #
RATED DURATION
12404 12405 12406 12407 12198 12199 12200 12201 12202 12203 12204 12205 12206 12207 12208
286 288 290 292 294 296 298 300 302 304 306 308 310 312 314
DURATION IN DEGREES @ .050
@ .200
256 258 260 262 264 266 268 270 272 274 276 278 280 282 284
179 181 183 185 187 189 191 193 194 196 198 200 202 204 206
LOBE LIFT
.445 .445 .445 .455 .445 .445 .445 .445 .445 .445 .445 .445 .445 .445 .445
TAPPET LIFT @ TDC 106°
110°
.126 .130 .135 .139 .143 .147 .152 .156 .161 .165 .169 .174 .178 .183 .187
.110 .114 .118 .122 .126 .130 .134 .139 .143 .147 .152 .156 .161 .165 .169
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.668 .668 .668 .683 .668 .668 .668 .668 .668 .668 .668 .668 .668 .668 .668
.712 .712 .712 .728 .712 .712 .712 .712 .712 .712 .712 .712 .712 .712 .712
.757 .757 .757 .774 .757 .757 .757 .757 .757 .757 .757 .757 .757 .757 .757
HXX HL ROLLERS Higher lift versions on the HXX lobes.. CAMSHAFT TYPE
LOBE #
RATED DURATION
HXX HL Rated Duration @ .020" Tappet Lift
12409 12366 12410 12371 12411 12372 12373
295 297 299 301 303 305 307
DURATION IN DEGREES @ .050
@ .200
265 267 269 271 273 275 277
189 191 193 195 197 199 201
LOBE LIFT
.465 .467 .469 .471 .473 .475 .477
TAPPET LIFT @ TDC 106°
110°
.146 .151 .155 .160 .164 .169 .174
.129 .133 .137 .142 .146 .151 .155
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.698 .701 .704 .707 .710 .713 .716
.744 .747 .750 .754 .757 .760 .763
.791 .794 .797 .801 .804 .808 .811
HXX LL ROLLERS These are softer ramp designs like the HXL designs but with lower lift. Work well for AL block applications with higher ratios or anywhere as an exhaust lobe. CAMSHAFT TYPE
LOBE #
RATED DURATION
HXX LL Rated Duration @ .020" Tappet Lift
12050 12052 12054
292 296 300
DURATION IN DEGREES @ .050
@ .200
262 266 270
180 184 188
LOBE LIFT
.390 .392 .394
TAPPET LIFT @ TDC 106°
110°
.135 .143 .151
.119 .127 .134
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.585 .588 .591
.663 .666 .670
.702 .706 .709
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SOLID ROLLER
IXL ROLLERS
SOLID ROLLER
The IXL Series is very similar to the HXL but is optimized for higher rocker ratios. This family also incorporates a design characteristic which should improve stability at very high RPM. These are quicker off the seat than the RX profiles, but the IXL nose shape will provide better stability with high ratios. CAMSHAFT TYPE
IXL Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 30.0 (14.5/15.5)
IXLL Rated Duration @ .020" Tappet Lift
LOBE #
RATED DURATION
12129 12131 12133 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544
275 279 283 287 289 291 293 295 297 299 301 303 305
14502 14504 14506 14508 14510 14512 14513 14514
282 286 291 295 298 302 304 306
DURATION IN DEGREES @ .050
@ .200
245 249 253 257 259 261 263 265 267 269 271 273 275
163 167 171 175 177 179 181 182 184 186 188 190 192
@ .050
@ .200
252 256 260 264 268 272 274 276
167 171 175 179 183 187 189 191
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
106°
110°
.400 .404 .408 .412 .414 .416 .418 .420 .422 .424 .426 .428 .430
.102 .110 .117 .125 .129 .133 .136 .140 .144 .148 .152 .156 .160
.088 .095 .102 .110 .113 .117 .121 .125 .128 .132 .136 .140 .144
106°
110°
1.8
1.9
2.0
.387 .389 .391 .393 .396 .402 .404 .406
.114 .122 .129 .137 .144 .152 .156 .160
.100 .107 .114 .122 .129 .137 .140 .144
.697 .700 .704 .707 .713 .724 .727 .731
.735 .739 .743 .747 .752 .764 .768 .771
.774 .778 .782 .786 .792 .804 .808 .812
.680 .687 .694 .700 .704 .707 .711 .714 .717 .721 .724 .728 .731
.720 .727 .734 .742 .745 .749 .752 .756 .760 .763 .767 .770 .774
.760 .768 .775 .783 .787 .790 .794 .798 .802 .806 .809 .813 .817
TK ROLLERS The TK Series is our most aggressive standard rocker ratio series. These designs get from .020" to .050" tappet lift and back from .050" to .020" tappet lift in only 28°. That quickness provides more duration at .200" and more area than comparable profiles. Excellent for all out Sprint Car and Late Model applications. Please consult with a COMP Cam® CAM HELP® technician or one of our Engine Builder salesmen for proper component selection. CAMSHAFT TYPE
TK Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 28.2 (13.8/14.4)
LOBE #
RATED DURATION
4639 4640 4641 4642 4643 4609 4610 4611 4612 4613 4614 4572 4615 4573
TK258 TK262 TK266 TK270 TK274 TK277 TK279 TK281 TK283 TK285 TK287 TK289-420 TK289 TK291-420
DURATION IN DEGREES @ .050
@ .200
230 234 238 242 246 249 251 253 255 257 259 261 261 263
156 160 164 168 172 175 177 179 180 182 184 184 186 186
LOBE LIFT
.405 .410 .415 .420 .425 .430 .430 .430 .430 .430 .430 .420 .430 .420
TAPPET LIFT @ TDC 106°
110°
.078 .085 .093 .101 .109 .118 .122 .127 .131 .135 .140 .147 .144 .149
.064 .071 .078 .085 .093 .101 .105 .109 .114 .118 .122 .129 .126 .131
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.608 .615 .623 .630 .638 .645 .645 .645 .645 .645 .645 .630 .645 .630
.648 .656 .664 .672 .680 .688 .688 .688 .688 .688 .688 .672 .688 .672
.689 .697 .706 .714 .723 .731 .731 .731 .731 .731 .731 .714 .731 .714
Continued on page 92
SOLID ROLLER
SOLID ROLLER
TK ROLLERS Continued CAMSHAFT TYPE
TK Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 28.2 (13.8/14.4)
LOBE #
RATED DURATION
4616 4574 4617 4575 4618 4576 4619 4620 4621 4622 4623 4624 4625 4627 4628
TK291 TK293-420 TK293 TK295-420 TK295 TK297-420 TK297 TK299 TK301 TK303 TK305 TK307 TK309 TK311 TK313
DURATION IN DEGREES @ .050
@ .200
263 265 265 267 267 269 269 271 273 275 277 279 281 283 285
188 188 190 190 191 191 193 195 197 199 201 202 204 206 208
LOBE LIFT
.430 .420 .430 .420 .430 .420 .430 .430 .430 .430 .430 .430 .430 .430 .430
TAPPET LIFT @ TDC 106°
110°
.149 .151 .153 .155 .157 .159 .162 .166 .170 .174 .178 .183 .187 .191 .195
.131 .134 .135 .138 .140 .142 .144 .148 .154 .157 .161 .165 .169 .173 .178
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.645 .630 .645 .630 .645 .630 .645 .645 .645 .645 .645 .645 .645 .645 .645
.688 .672 .688 .672 .688 .672 .688 .688 .688 .688 .688 .688 .688 .688 .688
.731 .714 .731 .714 .731 .714 .731 .731 .731 .731 .731 .731 .731 .731 .731
TK LIFT RULE ROLLERS These low lift designs are based on the TK series rollers and are specifically designed for lift rule applications such as Rev-Oil Pro Cup. Typically they will be used with 1.8:1 ratios. CAMSHAFT TYPE
TK Lift Rule .347" Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 28.2 (13.8/14.4)
LOBE #
RATED DURATION
1416 1417 1418 1419 4454 4421 4455 4422 4459 4423 4424 1427 1429
263 267 271 275 277 279 281 283 285 287 291 295 299
DURATION IN DEGREES @ .050
@ .200
235 239 243 247 249 251 253 255 257 259 263 267 271
154 158 161 165 166 168 169 171 172 174 177 180 184
LOBE LIFT
.347 .347 .347 .347 .347 .347 .347 .347 .347 .347 .347 .347 .347
TAPPET LIFT @ TDC 106°
110°
.089 .096 .104 .111 .115 .119 .123 .126 .130 .134 .141 .147 .154
.074 .081 .089 .096 .100 .104 .107 .111 .115 .118 .126 .133 .140
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.75 1.8 1.85
.607 .607 .607 .607 .607 .607 .607 .607 .607 .607 .607 .607 .607
.625 .625 .625 .625 .625 .625 .625 .625 .625 .625 .625 .625 .625
.642 .642 .642 .642 .642 .642 .642 .642 .642 .642 .642 .642 .642
SPL ROLLERS The SPL Rollers are very similar to the TK family but have special ramps designed to be used with looser lash values. These lobes are designed for hot lash settings in the .022" to .028" range. Otherwise, they should perform as well as the TK family in high torque applications that respond well to aggressive lobe profiles. CAMSHAFT TYPE
LOBE #
RATED DURATION
SPL Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 30.6 (15.2/15.4)
2906 2907 2908 2909
291 295 299 303
DURATION IN DEGREES @ .050
@ .200
260 264 268 272
184 188 192 195
LOBE LIFT
.435 .435 .435 .435
TAPPET LIFT @ TDC 106°
110°
.137 .146 .154 .163
.120 .128 .137 .145
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.696 .696 .696 .696
.740 .740 .740 .740
.783 .783 .783 .783
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SOLID ROLLER
VK LIFT RULE ROLLERS
SOLID ROLLER
These low lift designs are similar to the low lift TKs but optimized with quicker ramps for the lower lobe lift. Designed for lift rule solid roller applications including revised NMRA specs. CAMSHAFT TYPE
VK Lift Rule .323" Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 27.2 (13.3/13.9)
LOBE #
RATED DURATION
2688 2689 2690 2691 2692 2693 2694 2695 2687 2686 2685 2684
276 280 284 288 292 296 300 304 308 312 316 320
DURATION IN DEGREES @ .050
@ .200
249 253 257 261 265 269 273 277 281 285 289 293
161 164 167 171 174 178 181 184 188 191 195 198
LOBE LIFT
.323 .323 .323 .323 .323 .323 .323 .323 .323 .323 .323 .323
TAPPET LIFT @ TDC 106°
110°
.112 .119 .126 .133 .140 .147 .153 .159 .165 .170 .176 .181
.098 .105 .112 .119 .126 .133 .139 .146 .152 .158 .163 .169
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.55 1.6 1.65
.501 .501 .501 .501 .501 .501 .501 .501 .501 .501 .501 .501
.517 .517 .517 .517 .517 .517 .517 .517 .517 .517 .517 .517
.533 .533 .533 .533 .533 .533 .533 .533 .533 .533 .533 .533
CSZ ROLLERS The CSZ Rollers are "tweaked" versions of the DSZ profiles for use in standard journal Small Block Chevy applications and higher lift Big Block Chevy or 50mm. These are not quite as quick as the DSZ profiles, and they give up a little area and stability compared to the larger journal versions. However, this as close to a DSZ as you can get with a smaller journal. Also good for hydraulic rollers if noise is not a primary concern. CAMSHAFT TYPE
CSZ Rated Duration @ .020" Tappet Lift Journal = S MI 27.7 (13.5/14.2)
LOBE #
RATED DURATION
12540 12581 12582 12588 12543 12583 12584 12589 12543 12550 12552 12554 12555 12556 12558 12560
240 242 244 252 252 254 256 260 252 268 272 276 278 280 284 288
DURATION IN DEGREES @ .050
@ .200
212 214 216 224 224 226 228 232 224 240 244 248 250 252 256 260
133 135 137 144 147 148 150 154 147 165 169 173 175 177 181 185
LOBE LIFT
.325 .325 .325 .325 .348 .348 .348 .348 .348 .394 .398 .402 .404 .406 .410 .414
TAPPET LIFT @ TDC 106°
110°
.049 .052 .055 .068 .068 .071 .075 .082 .068 .098 .106 .114 .118 .123 .132 .140
.039 .041 .044 .055 .055 .058 .061 .068 .055 .082 .090 .098 .102 .106 .114 .123
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.488 .488 .488 .488 .522 .522 .522 .522 .522 .591 .597 .603 .606 .609 .615 .621
.520 .520 .520 .520 .557 .557 .557 .557 .557 .630 .637 .643 .646 .650 .656 .662
.553 .553 .553 .553 .592 .592 .592 .592 .592 .670 .677 .683 .687 .690 .697 .704
Continued on page 94
SOLID ROLLER
SOLID ROLLER
CSZ ROLLERS Continued CAMSHAFT TYPE
CSZ H Rated Duration @ .020" Tappet Lift Journal = S, B MI 27.7 (13.5/14.2)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
12564 12566 12568 12570 12571 12572 12573 12574 12575 12576
256 260 264 268 270 272 274 276 278 280
228 232 236 240 242 244 246 248 250 252
154 158 162 166 168 170 172 174 176 178
.399 .403 .407 .411 .413 .415 .417 .419 .421 .423
.075 .082 .090 .098 .102 .106 .110 .114 .119 .123
.061 .068 .075 .082 .086 .090 .094 .098 .102 .106
.599 .605 .611 .617 .620 .623 .626 .629 .632 .635
.638 .645 .651 .658 .661 .664 .667 .670 .674 .677
.678 .685 .692 .699 .702 .706 .709 .712 .716 .719
12577 12578 12580
282 284 288
254 256 260
180 182 186
.425 .427 .431
.127 .132 .141
.110 .114 .123
.638 .641 .647
.680 .683 .690
.723 .726 .733
LOBE LIFT
DSZ ROLLERS The DSZ Rollers are tight lash designs based on our high lift DSP and DSS series but optimized with quicker ramps for shorter duration applications. These lobes have shorter seat timing than even the TK series. DSZ Rollers provide great torque and power in limited engine speed or limited ratio applications. DSZ profiles are also very good with limited travel hydraulic roller lifters if noise is not a primary concern. CAMSHAFT TYPE
DSZ Series Rated Duration @ .020" Tappet Lift Journal = B, F, R, M MI 27.1 (13.0/14.1)
DSZ H Series Rated Duration @ .020" Tappet Lift Journal = F, R, M MI 27.1 (13.0/14.1)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
12500 12502 12504 12506 12508 12510
267 271 275 279 283 287
240 244 248 252 256 260
166 170 174 177 181 185
.394 .398 .402 .406 .410 .414
.098 .106 .115 .123 .132 .141
.083 .090 .098 .106 .115 .123
.591 .597 .603 .609 .615 .621
.630 .637 .643 .650 .656 .662
.670 .677 .683 .690 .697 .704
12522 12524 12526 12527 12528 12530
271 275 279 281 283 287
244 248 252 254 256 260
170 174 178 180 182 186
.415 .419 .423 .425 .427 .431
.106 .115 .124 .128 .132 .141
.090 .098 .106 .111 .115 .124
.623 .629 .635 .638 .641 .647
.664 .670 .677 .680 .683 .690
.706 .712 .719 .723 .726 .733
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
These higher lift designs are based on the original TK series rollers, but with higher lobe lift for applications with larger journals only. CAMSHAFT TYPE
TK - .455" Rated Duration @ .020" Tappet Lift Journal = B,F,R,M MI 28.2 (13.8/14.4)
LOBE #
RATED DURATION
1554 1589 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1576
269 271 273 275 277 279 281 283 285 287 289 291 293 295 297 299 301 303
DURATION IN DEGREES @ .050
@ .200
241 243 245 247 249 251 253 255 257 259 261 263 265 267 269 271 273 275
168 170 172 174 176 178 179 181 183 185 187 189 190 192 194 196 198 199
LOBE LIFT
.455 .455 .455 .455 .455 .455 .455 .455 .455 .455 .455 .455 .455 .455 .455 .455 .455 .455
TAPPET LIFT @ TDC 106°
110°
.101 .105 .109 .113 .118 .122 .127 .131 .135 .140 .144 .148 .153 .157 .162 .166 .170 .174
.085 .089 .093 .097 .101 .105 .109 .113 .118 .122 .126 .130 .135 .139 .144 .148 .154 .156
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.683 .683 .683 .683 .683 .683 .683 .683 .683 .683 .683 .683 .683 .683 .683 .683 .683 .683
.728 .728 .728 .728 .728 .728 .728 .728 .728 .728 .728 .728 .728 .728 .728 .728 .728 .728
.774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774
SOLID ROLLER
TK .455" ROLLERS
TK HL & SP-TK HI LIFT ROLLERS These higher lift designs are based on the TK .455" series rollers, but have faster opening side velocities and more lobe lift. For use with 1.948" or larger journals only. CAMSHAFT TYPE
SP-TK Rated Duration @ .020" Tappet Lift Journal = B,F,R,M MI 28.2 (13.8/14.4)
LOBE #
RATED DURATION
1519 1520 1521 1522 1523 1524
276 280 284 288 292 296
DURATION IN DEGREES @ .050
@ .200
248 252 256 260 264 268
175 179 183 187 190 194
LOBE LIFT
.470 .470 .470 .470 .470 .470
TAPPET LIFT @ TDC 106°
110°
.114 .123 .131 .140 .149 .158
.097 .105 .113 .122 .131 .140
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.705 .705 .705 .705 .705 .705
.752 .752 .752 .752 .752 .752
.799 .799 .799 .799 .799 .799
DIX ROLLERS The DIX series is similar to the RX but with substantially more area under the curve.. CAMSHAFT TYPE
LOBE #
RATED DURATION
DIX Rated Duration @ .020" Tappet Lift MI 29.6 (14.2/15.4) Journal = B,F,R,M
12100
DURATION IN DEGREES @ .050
@ .200
304
274
196
12102
306
276
12103
308
278
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.439
.165
.147
.702
.746
.790
198
.439
.169
.151
.702
.746
.790
200
.439
.173
.155
.702
.746
.790
SOLID ROLLER
SOLID ROLLER
UB ROLLERS The UB Series Rollers are based on some of our most popular high RPM, NASCAR-style .875" flat tappet designs but are optimized to take advantage of the additional tappet velocity allowed with roller lifters. These are quicker off the seat than the HXL Series but have slightly less high lift area. Performance will be similar to the HXL, but certain port designs and valve train systems will have a clear preference. CAMSHAFT TYPE
UB Rated Duration @ .020" Tappet Lift Journal = B,F,R,M MI 29.4 (14.4/15.0)
UB Rated Duration @ .020" Tappet Lift Journal = B,F,R,M MI 29.4 (14.4/15.0)
LOBE #
RATED DURATION
2214 2215 2246 2247 2238 2239 2240 2241 2242 2243 2244 2245 2380 2381 2386 2397
287 289 291 293 295 297 299 301 303 305 307 309 311 313 317 321
2876 2877 2878 2879 2265 2267 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2284
277 279 281 283 285 287 289 291 293 295 297 299 301 303 305 307 309
DURATION IN DEGREES @ .050
@ .200
257 259 261 263 265 267 269 271 273 275 277 279 281 283 287 291
179 181 183 185 186 188 190 192 194 196 198 200 202 204 207 211
@ .050
@ .200
247 249 251 253 255 257 259 261 263 265 267 269 271 273 275 277 279
168 170 172 173 176 178 179 181 183 185 187 189 191 193 195 197 199
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.446 .447 .448 .449 .450 .451 .452 .453 .454 .455 .456 .457 .458 .459 .461 .463
.126 .130 .135 .139 .143 .147 .152 .156 .160 .164 .168 .172 .177 .181 .189 .198
.110 .114 .118 .122 .128 .130 .135 .139 .143 .147 .151 .155 .159 .164 .172 .181
106°
110°
1.7
1.8
1.9
.419 .420 .421 .422 .423 .424 .425 .426 .427 .428 .430 .432 .434 .436 .438 .440 .442
.106 .110 .114 .118 .122 .126 .130 .134 .138 .142 .146 .150 .155 .159 .163 .167 .171
.092 .095 .099 .103 .106 .110 .114 .118 .122 .126 .130 .134 .138 .142 .146 .150 .154
.712 .714 .716 .717 .719 .721 .723 .724 .726 .728 .731 .734 .738 .741 .745 .748 .751
.754 .756 .758 .760 .761 .763 .765 .767 .769 .770 .774 .778 .781 .785 .788 .792 .796
.796 .798 .800 .802 .804 .806 .808 .809 .811 .813 .817 .821 .825 .828 .832 .836 .840
.714 .715 .717 .718 .720 .722 .723 .725 .726 .728 .730 .731 .733 .734 .738 .741
.758 .760 .762 .763 .765 .767 .768 .770 .772 .774 .775 .777 .779 .780 .784 .787
.803 .805 .806 .808 .810 .812 .814 .815 .817 .819 .821 .823 .824 .826 .830 .833
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
UBL ROLLERS
The UBL Rollers are based on the UB Roller designs but are faster off the seat for improved performance in limited engine speed and lower lobe lift applications. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
UBL Rated Duration @ .020" Tappet Lift Journal = B,F,R,M MI 29.4 (14.4/15.0)
2195 2196
283 287
254 258
174 179
.410 .410
.120 .128
.105 .113
.656 .656
.697 .697
.738 .738
2198 2199
295 299
266 270
185 189
.410 .410
.144 .152
.128 .136
.656 .656
.697 .697
.738 .738
LOBE LIFT
UBA ROLLERS The UBA Series is based on the UB design but is faster off the seat for improved performance in limited engine speed applications. CAMSHAFT TYPE
UBA Rated Duration @ .020" Tappet Lift Journal = B,F,R,M MI 28.6 (13.9/14.7)
LOBE #
RATED DURATION
2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259
285 287 289 291 293 295 297 299 301 303 305 307
DURATION IN DEGREES @ .050
@ .200
256 258 260 262 264 266 268 270 272 274 276 278
179 181 183 185 187 189 191 193 195 197 199 201
LOBE LIFT
.444 .446 .448 .450 .452 .454 .456 .458 .460 .462 .464 .465
TAPPET LIFT @ TDC 106°
110°
.126 .131 .135 .139 .144 .148 .153 .157 .161 .166 .170 .175
.110 .114 .118 .122 .126 .131 .135 .139 .144 .148 .152 .157
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.710 .714 .717 .720 .723 .726 .730 .733 .736 .739 .742 .744
.755 .758 .762 .765 .768 .772 .775 .779 .782 .785 .789 .791
.799 .803 .806 .810 .814 .817 .821 .824 .828 .832 .835 .837
UBLL ROLLERS The UBLL Rollers are based on the UB Roller designs but are faster off the seat for improved performance in limited engine speed and lower lobe lift applications. CAMSHAFT TYPE
LOBE #
RATED DURATION
UBLL Rated Duration @ .020" Tappet Lift Journal = B,F,R,M MI 28.6 (13.9/14.7)
2201
DURATION IN DEGREES @ .050
@ .200
289
260
177
2202
291
262
2203
293
264
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.9 2.0 2.1
106°
110°
.389
.131
.116
.739
.778
.817
179
.390
.135
.119
.741
.780
.819
181
.391
.139
.123
.743
.782
.821
SOLID ROLLER
SOLID ROLLER
UBR ROLLERS The UBR series is similar to the original UB series but with a significant opening ramp segment added for less valve spring surge and slightly more closing ramp. This should increase stability, especially with very stiff, high ratio rockers and applications that cannot run the lash below 0.015". CAMSHAFT TYPE
UBR Rated Duration @ .020" Tappet Lift MI 29.3 (14.2/15.1)
LOBE #
RATED DURATION
14142
DURATION IN DEGREES @ .050
@ .200
293
264
185
14144
297
268
14146
301
272
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
106°
110°
.438
.142
.126
.745
.788
.832
189
.442
.151
.134
.751
.796
.840
193
.446
.160
.142
.758
.803
.847
GCI & GCX ROLLERS The GCI and GCX lobes have a bit more ramp than some of the other modern profiles but have excellent area. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
GCI Rated Duration @ .020" Tappet Lift Journal = B,F,R,M MI 28.7 (13.8/14.9)
2682 2683 2570 2582 2583
290 292 294 296 298
261 263 265 267 269
185 187 189 191 193
.453 .455 .457 .459 .461
.139 .143 .147 .152 .156
.122 .126 .130 .134 .139
.680 .683 .686 .689 .692
.725 .728 .731 .734 .738
.770 .774 .777 .780 .784
GCX Rated Duration @ .020" Tappet Lift Journal = B,F,R,M MI 27.5 (13.2/14.3)
2730 2731 2571 2590 2591
295 297 299 301 303
268 270 272 274 276
191 193 195 197 199
.457 .459 .461 .463 .465
.155 .159 .163 .167 .172
.137 .142 .145 .150 .154
.686 .689 .692 .695 .698
.731 .734 .738 .741 .744
.777 .780 .784 .787 .791
LOBE LIFT
ULG UVX HIGH RATIO ROLLERS The ULG and UVX are smoother than the UBLL for even higher rocker ratios, especially for converting older NASCAR Cup engines with very high ratios over to roller cams. CAMSHAFT TYPE
LOBE #
RATED DURATION
ULG Rated Duration @ .020" Tappet Lift MI 30.4 (14.8/15.6)
14004
UVX Rated Duration @ .020" Tappet Lift
DURATION IN DEGREES @ .050
@ .200
282
252
167
14006
286
256
14008
290
14013
304
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.1 2.2 2.3
106°
110°
.388
.114
.100
.815
.854
.892
171
.388
.122
.107
.815
.854
.892
260
175
.388
.129
.114
.815
.854
.892
272
183
.388
.145
.131
.815
.854
.892
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
LDP XDP ENDURANCE ROLLERS
The LPD, LRP and XPD are faster, 24-hour endurance roller cam applications with quicker profiles that can be used in well optimized applications. These also make some of the best possible tight lash street profiles for LS-type applications with light and stiff valve trains. CAMSHAFT TYPE
LOBE #
RATED DURATION
LDP Rated Duration @ .020" Tappet Lift MI 28.7 (13.6/15.1)
20400 20401 20402 20404
268 270 272 276
LRP Rated Duration @ .020" Tappet Lift MI 29.2 (13.8/15.4)
XDP Rated Duration @ .006" Tappet Lift MI 29.9 (14.2/15.7)
DURATION IN DEGREES @ .050
@ .200
239 241 243 247
163 164 166 170
@ .050
@ .200
LOBE LIFT
.397 .397 .397 .397
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
106°
110°
.094 .098 .102 .110
.079 .083 .087 .094
.715 .715 .715 .715
.754 .754 .754 .754
.794 .794 .794 .794
106°
110°
1.7
1.8
1.9
20428
268
239
161
.383
.093
.079
.651
.689
.728
20430
272
243
164
.383
.101
.087
.651
.689
.728
20432
276
247
168
.383
.109
.095
.651
.689
.728
@ .050
@ .200
106°
110°
1.8
1.9
2.0
239 243 245 247
159 162 164 166
.093 .101 .105 .109
.079 .086 .090 .093
.664 .664 .664 .664
.701 .701 .701 .701
.738 .738 .738 .738
20410 20412 20413 20414
269 273 275 277
.369 .369 .369 .369
HPX ROLLERS The HPX Rollers are higher lift, more aggressive versions of the HXX lobes for use in larger journal applications. These also work well with less rocker ratio and can be used on the intake or exhaust. CAMSHAFT TYPE
HPX Rated Duration @ .020" Tappet Lift Journal = B,R,M MI 28.5 (14.0/14.5)
LOBE #
RATED DURATION
12183 12185 12187 12188 12189 12190 12191 12192 12193 12194 12195 12196 12197 12230 12231 12232 12233 12234
288 292 294 296 298 300 302 304 306 308 310 312 314 316 318 320 322 324
DURATION IN DEGREES @ .050
@ .200
260 264 266 268 270 272 274 276 278 280 282 284 286 288 290 292 294 296
187 191 193 195 197 199 201 203 205 207 209 211 213 215 217 219 221 223
LOBE LIFT
.471 .475 .477 .479 .481 .483 .485 .487 .489 .491 .493 .495 .495 .495 .495 .495 .495 .495
TAPPET LIFT @ TDC 106°
110°
.140 .150 .154 .159 .164 .169 .174 .179 .183 .189 .193 .199 .203 .208 .213 .218 .222 .227
.122 .131 .135 .140 .144 .150 .154 .159 .164 .169 .174 .179 .183 .188 .193 .198 .203 .207
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.707 .713 .716 .719 .722 .725 .728 .731 .734 .737 .740 .743 .743 .743 .743 .743 .743 .743
.754 .760 .763 .766 .770 .773 .776 .779 .782 .786 .789 .792 .792 .792 .792 .792 .792 .792
.801 .808 .811 .814 .818 .821 .825 .828 .831 .835 .838 .842 .842 .842 .842 .842 .842 .842
SOLID ROLLER
SOLID ROLLER
DLB ROLLERS The DLB rollers are very smooth, higher RPM profiles similar to both the TS and DRZ Drag profiles. These are a very good choice for any extremely high RPM drag racing or mid-endurance application that require high lift, high RPM and a wide power range. Require high rate valve springs. CAMSHAFT TYPE
DLB Rated Duration @ .020" Tappet Lift Journal = R,M MI 30.6 (15.0/15.6)
DLB LL Rated Duration @ .020" Tappet Lift Journal = B,R,M MI 30.6 (15.0/15.6)
LOBE #
RATED DURATION
12476 12478 12480 12482 12483 12484 12485 12486 14280 14282 14284 14285 14286 14287 14288
DURATION IN DEGREES @ .050
@ .200
297 301 305 309 311 313 315 317
266 270 274 278 280 282 284 286
188 192 196 200 202 204 206 208
297 301 305 307 309 311 313
266 270 274 276 278 280 282
186 190 194 196 198 200 202
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.519 .525 .531 .537 .540 .543 .546 .549
.144 .153 .162 .171 .176 .181 .185 .190
.127 .135 .144 .153 .158 .162 .167 .171
.830 .840 .850 .859 .864 .869 .874 .878
.882 .893 .903 .913 .918 .923 .928 .933
.934 .945 .956 .967 .972 .977 .983 .988
.473 .477 .481 .483 .485 .487 .489
.143 .151 .160 .165 .169 .174 .178
.126 .135 .143 .147 .152 .156 .160
.757 .763 .770 .773 .776 .779 .782
.804 .811 .818 .821 .825 .828 .831
.851 .859 .866 .869 .873 .877 .880
DNW ROLLERS The DNW rollers are similar to the DLB series but work well in longer endurance applications that use lower rate valve springs. Very good for short duration applications that operated under 9500 RPM. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.7 1.9
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
DNW Pro Rated Duration @ .020" Tappet Lift
11888 11889 11890 11891 11892
292 294 296 298 300
261 263 265 267 269
186 188 190 192 194
.518 .520 .522 .524 .526
.136 .140 .145 .150 .154
.119 .123 .127 .131 .136
.777 .780 .783 .786 .789
.881 .884 .887 .891 .894
.984 .988 .992 .996 .999
11902 11903 11904 11906 11908
300 302 304 308 312
269 271 273 277 281
194 196 198 202 206
.555 .557 .559 .563 .567
.155 .159 .164 .174 .184
.136 .140 .145 .155 .164
.833 .836 .839 .845 .851
.944 .947 .950 .957 .964
1.055 1.058 1.062 1.070 1.077
Journal = F,R,M MI 30.8 (15.0/15.8)
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
The DLS Series is a slightly smoother version, similar to the DLB series, and even more stable than the RX Drag designs for very high RPM applications where excellent durability is required.
CAMSHAFT TYPE
DLS Rated Duration @ .020" Tappet Lift Journal = B,R,M MI 32.2 (15.7/16.5)
LOBE #
RATED DURATION
12494 12956 12957 12958 12498 12959 12963 12964 12965
300 302 304 306 308 310 312 314 316
DURATION IN DEGREES @ .050
@ .200
268 270 272 274 276 278 280 282 284
188 190 192 194 196 198 200 202 204
LOBE LIFT
.507 .508 .509 .510 .511 .512 .513 .514 .515
TAPPET LIFT @ TDC 106°
110°
.146 .150 .155 .159 .164 .168 .173 .177 .177
.129 .133 .137 .142 .146 .150 .155 .159 .159
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.811 .813 .814 .816 .818 .819 .821 .822 .824
.862 .864 .865 .867 .869 .870 .872 .874 .876
.913 .914 .916 .918 .920 .922 .923 .925 .927
SOLID ROLLER
DLS ROLLERS
DSP ROLLERS The DSP Rollers fit nicely between the UBA and DSS families. These profiles work great either in lower ratio, high RPM applications or in lower engine speed applications where you can use a faster lobe. CAMSHAFT TYPE
DSP Rated Duration @ .020" Tappet Lift Journal = B,R,M MI 28.5 (13.8/14.7)
LOBE #
RATED DURATION
12170 12171 12172 12173 12174 12175 12280 12176 12281 12177 12282 12178 14293 12179 14294 12180 14925 12181 14296 12182 12162 12163 12274 12275
279 281 283 285 287 289 291 291 293 293 295 295 297 297 299 299 301 301 303 303 305 307 309 311
DURATION IN DEGREES @ .050
@ .200
250 252 254 256 258 260 262 262 264 264 266 266 268 268 270 270 272 272 274 274 276 278 280 282
175 177 179 181 183 185 187 187 189 189 191 191 193 193 195 195 197 197 199 199 201 203 205 207
LOBE LIFT
.461 .463 .465 .466 .467 .468 .462 .469 .463 .470 .464 .471 .465 .472 .466 .473 .467 .474 .468 .475 .476 .477 .478 .479
TAPPET LIFT @ TDC 106°
110°
.115 .120 .124 .128 .133 .137 .141 .142 .146 .146 .150 .151 .155 .155 .159 .160 .164 .165 .168 .169 .174 .179 .183 .188
.099 .103 .107 .111 .115 .120 .124 .124 .128 .128 .132 .133 .137 .137 .141 .142 .146 .146 .150 .151 .155 .160 .164 .169
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.738 .741 .744 .746 .747 .749 .739 .750 .741 .752 .742 .754 .744 .755 .746 .757 .747 .758 .749 .760 .762 .763 .765 .766
.784 .787 .791 .792 .794 .796 .785 .797 .787 .799 .789 .801 .791 .802 .792 .804 .794 .806 .796 .808 .809 .811 .813 .814
.830 .833 .837 .839 .841 .842 .832 .844 .833 .846 .835 .848 .837 .850 .839 .851 .841 .853 .842 .855 .857 .859 .860 .862
SOLID ROLLER
SOLID ROLLER
DSS ROLLERS The DSS Rollers are based off the best aspects of the HXL and DR Series. These work very well in high torque applications that can take advantage of an aggressive high lobe lift design. The DSS series is a very good choice for applications where valve motion similar to that of an aggressive high ratio lobe is desired without going with an extreme rocker ratio. Available for 1.948" and larger journal sizes but cannot be ground on standard journal Small Block Chevy or small base circle cores. CAMSHAFT TYPE
DSS Rated Duration @ .020" Tappet Lift Journal = B,R,M MI 28.0 (13.6/14.4)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
11503 11504 11505 11506 2531 2545 2551
276 278 280 282 284 286 288
248 250 252 254 256 258 260
175 177 179 181 183 185 187
.466 .468 .470 .472 .474 .475 .476
.113 .117 .121 .126 .130 .135 .139
.096 .100 .104 .109 .113 .117 .121
.699 .702 .705 .708 .711 .713 .714
.746 .749 .752 .755 .758 .760 .762
.792 .796 .799 .802 .806 .808 .809
2555 2557 2559 2560 2521 2522 2523 2524 2525 2526 2527 2528 2529
299 292 294 296 298 300 302 304 306 308 310 312 314
262 264 266 268 270 272 274 276 278 280 282 284 286
189 191 192 194 196 198 200 202 204 206 208 210 212
.477 .478 .479 .480 .481 .482 .483 .484 .485 .486 .487 .488 .489
.143 .148 .153 .157 .162 .166 .171 .176 .180 .185 .189 .194 .199
.125 .130 .134 .139 .143 .148 .152 .157 .161 .166 .170 .175 .180
.716 .717 .719 .720 .722 .723 .725 .726 .728 .729 .731 .732 .734
.763 .765 .766 .768 .770 .771 .773 .774 .776 .778 .779 .781 .782
.811 .813 .814 .816 .818 .819 .821 .823 .825 .826 .828 .830 .831
LOBE LIFT
DSL ROLLERS The DSL Rollers are based off the DSP and DSS Series but with increased lobe lift. The DSL Series is a very good choice for applications where valve motion similar to that of an aggressive high ratio lobe is desired without going with a high ratio. Available for 55mm/2.165" and larger journal sizes but cannot be ground on standard journal Big Block Chevy, Small Block Chevy or small base circle cores. CAMSHAFT TYPE
DSL Rated Duration @ .020" Tappet Lift Journal = R,M MI 28.4 (13.6/14.7)
LOBE #
RATED DURATION
12374 12375 12376 12377 12378 12379 12380 12381 12382 12383 12384 12385 12386
286 288 290 292 294 292 298 300 302 304 306 308 310
DURATION IN DEGREES @ .050
@ .200
258 260 262 264 266 268 270 272 274 276 278 280 282
185 187 189 191 193 195 197 199 201 203 205 207 209
LOBE LIFT
.502 .504 .506 508 .510 .512 .514 .516 .518 .520 .522 .524 .526
TAPPET LIFT @ TDC 106°
110°
.135 .139 .144 .149 .154 .159 .163 .168 .173 .178 .183 .188 .193
.117 .121 .126 .130 .135 .139 .144 .149 .154 .159 .163 .168 .173
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.753 .756 .759 .762 .765 .768 .771 .774 .777 .780 .783 .786 .789
.803 .806 .810 .813 .816 .819 .822 .826 .829 .832 .835 .838 .842
.853 .857 .860 .864 .867 .870 .874 .877 .881 .884 .887 .891 .894
Continued on page 103
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
CAMSHAFT TYPE
DSL Rated Duration @ .020" Tappet Lift Journal = R,M MI 28.4 (13.6/14.7)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
14387 14388
312 314
284 286
211 213
.528 .530
.198 .203
.178 .183
.792 .795
.845 .848
.898 .901
14490 14492 14494 14496
298 302 306 310
270 274 278 282
198 202 206 209
.535 .535 .535 .535
.164 .174 .184 .193
.144 .154 .164 .173
.803 .803 .803 .803
.856 .856 .856 .856
.910 .910 .910 .910
LOBE LIFT
SOLID ROLLER
DSL ROLLERS Continued
OTC ROLLERS The OTC series is designed for very tight lash (.008" to .015" hot). These fall right between the DLB and DSL profiles in terms of area but can be more stable as these tighter clearance designs shock the system less by using acceleration at the lash point instead of higher opening and closing velocity for quick action off the seat. When going to a tight lash design, decrease the duration by at least 2° for every .004" tighter lash setting to keep the same new valve duration. May require block and/or oil heaters, especially for use on colder days. CAMSHAFT TYPE
OTC Rated Duration @ .020" Tappet Lift Journal = B,R,M MI 28.3 (13.8/14.5)
LOBE #
RATED DURATION
14820 14821 14822 14823 14824 14825 14826
293 295 297 299 301 303 305
DURATION IN DEGREES @ .050
@ .200
265 267 269 271 273 275 277
188 190 192 194 196 198 199
LOBE LIFT
.474 .475 .476 .477 .478 .478 .478
TAPPET LIFT @ TDC 106°
110°
.145 .150 .154 .158 .163 .167 .172
.128 .132 .137 .141 .145 .150 .154
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.758 .760 .762 .763 .765 .765 .765
.806 .808 .809 .811 .813 .813 .813
.853 .855 .857 .859 .860 .860 .860
ETC ROLLERS The ETCs are designed to fill the role for longer endurance applications than the OTC and are a little more forgiving if the hot lash grows beyond .015". The intended lash range is still .008" to .015" hot. These fall a little closer to the RX and UB profiles in terms of application but should be even more stable that the UB in applications where the lash can set to the intended range. Decrease the duration by at least 2° for every .004" tighter lash setting to keep the same new valve duration. May require block and/or oil heaters, especially for use on colder days. CAMSHAFT TYPE
LOBE #
RATED DURATION
ETC Rated Duration @ .020" Tappet Lift
14862 14864 14866 14868 14870
292 296 300 304 308
Journal = B,R,M MI 29.5 (14.4/15.1)
DURATION IN DEGREES @ .050
@ .200
262 266 270 274 278
181 185 189 193 197
LOBE LIFT
.436 .440 .444 .448 .452
TAPPET LIFT @ TDC 106°
110°
.135 .143 .151 .159 .168
.119 .127 .135 .143 .151
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.698 .704 .710 .717 .723
.741 .748 .755 .762 .768
.785 .792 .799 .806 .814
SOLID ROLLER
SOLID ROLLER
DTT ROLLERS The DTT is like a slower opening version of the DSS with a closing ramp like the DSL. These should be smoother and better in high RPM applications. CAMSHAFT TYPE
DTT Rated Duration @ .020" Tappet Lift Journal = R,M MI 28.9 (14.0/14.9)
LOBE #
RATED DURATION
14020 14021 14022 14023 14024 14025 14026
DURATION IN DEGREES @ .050
@ .200
300 302 304 306 308 310 312
271 273 275 277 279 281 283
195 197 199 201 203 205 207
14028 14030
316 320
287 291
14616 14617 14618 14619 14620 14621 14622 14623 14624 14625 14626 14627 14628
292 294 296 298 300 302 304 306 308 310 312 314 316
14658
296
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.480 .482 .484 .486 .488 .490 .492
.164 .168 .173 .177 .182 .186 .191
.146 .150 .155 .159 .164 .168 .173
.720 .723 .726 .729 .732 .735 .738
.768 .771 .774 .778 .781 .784 .787
.816 .819 .823 .826 .830 .833 .836
211 215
.496 .500
.200 .209
.182 .191
.794 .800
.843 .850
.893 .900
263 265 267 269 271 273 275 277 279 281 283 285 287
186 188 190 192 194 196 198 200 202 204 206 208 210
.455 .457 .459 .461 .463 .465 .467 .469 .471 .473 .475 .477 .479
.144 .148 .153 .157 .161 .166 .170 .175 .179 .184 .188 .192 .196
.127 .131 .136 .140 .144 .148 .153 .157 .161 .166 .170 .175 .179
.728 .731 .734 .738 .741 .744 .747 .750 .754 .757 .760 .763 .766
.774 .777 .780 .784 .787 .791 .794 .797 .801 .804 .808 .811 .814
.819 .823 .826 .830 .833 .837 .841 .844 .848 .851 .855 .859 .862
267
191
.490
.154
.136
.784
.833
.882
DPC & DPD ROLLERS The DPD lobes are for 2.125", 55mm or larger journals and are slightly quicker than the aggressive DSS Series. The DPC can be used on smaller journals and give approximately the same valve motion when used with about +0.15 more rocker ratio. CAMSHAFT TYPE
LOBE #
RATED DURATION
DPC Rated Duration @ .020" Tappet Lift Journal = R,M MI 28.6 (13.6/15.0)
12648 12649 12650 12652 12654
278 280 282 286 290
DPD Rated Duration @ .020" Tappet Lift Journal = R,M MI 27.8 (13.2/14.6)
11728 11730 11732 11734 12746 12748
260 264 268 272 276 280
DURATION IN DEGREES @ .050
@ .200
249 251 253 257 261
174 176 177 182 185
@ .050
@ .200
232 236 240 244 248 252
161 165 169 173 177 181
LOBE LIFT
.440 .440 .440 .440 .440 .4677 .4697 .4717 .4737 .4757 .4777
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
106°
110°
.114 .118 .122 .131 .140
.098 .102 .106 .114 .122
.748 .748 .748 .748 .748
.792 .792 .792 .792 .792
.836 .836 .836 .836 .836
106°
110°
1.65
1.75
1.85
.082 .090 .098 .106 .115 .124
.068 .075 .082 .090 .098 .106
.772 .775 .778 .782 .785 .788
.818 .822 .825 .829 .832 .836
.865 .869 .873 .876 .880 .884
Continued on page 105
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
DPC & DPD ROLLERS Continued LOBE #
RATED DURATION
12749 12750 12751 12752 12753 12754 11736 11737
DURATION IN DEGREES @ .050
@ .200
282 284 286 288 290 292 294 296
254 256 258 260 262 264 266 268
183 185 187 188 190 192 194 196
11710
284
256
DPD Rated Duration @ .020" Tappet Lift
14748
280
14749
Journal = M
14750
DPD Rated Duration @ .020" Tappet Lift Journal = R,M MI 27.8 (13.2/14.6)
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.65 1.75 1.85
106°
110°
.4777 .4777 .4777 .4777 .4777 .4777 .4777 .4777
.128 .133 .137 .142 .147 .152 .156 .161
.110 .115 .119 .124 .128 .133 .137 .142
.788 .788 .788 .788 .788 .788 .788 .788
.836 .836 .836 .836 .836 .836 .836 .836
.884 .884 .884 .884 .884 .884 .884 .884
185
.484
.133
.115
.799
.847
.895
252
181
.4980
.124
.106
.822
.872
.921
282
254
183
.4980
.129
.111
.822
.872
.921
284
256
185
.4980
.133
.115
.822
.872
.921
SOLID ROLLER
CAMSHAFT TYPE
HOI & HOX ROLLERS The HOI design is like the UBA but faster without the lobe lift of the DSS. The HOX fits in between the HPX and HXX series in terms of lift but is almost as aggressive as the high lift HPX family. These work very well with either lower ratios or with less extreme engine speed. CAMSHAFT TYPE
HOI Rated Duration @ .020" Tappet Lift Journal = R,M MI 27.3 (13.2/14.1)
HOX Rated Duration @ .020" Tappet Lift Journal = R,M MI 28.5 (14.0/14.5)
Journal = M
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
12899 12900 12901 12905 12907 12908 12909 12910 12604 12664
274 276 278 282 286 288 290 292 294 290
247 249 251 255 259 261 263 265 267 263
174 176 178 182 186 188 190 192 194 189
.461 .462 .463 .465 .465 .465 .465 .465 .465 .448
.112 .116 .120 .129 .138 .143 .147 .152 .157 .146
.095 .099 .103 .112 .120 .125 .129 .133 .138 .128
.692 .693 .695 .698 .698 .698 .698 .698 .698 .672
.738 .739 .741 .744 .744 .744 .744 .744 .744 .717
.784 .785 .787 .791 .791 .791 .791 .791 .791 .762
12322 12324
297 301
269 273
194 198
.452 .452
.159 .168
.140 .149
.678 .678
.723 .723
.768 .768
12300 12301 12303 12304 12305 12306 12307
297 299 301 303 305 307 309
269 271 273 275 277 279 281
195 197 199 201 203 205 206
.465 .465 .465 .465 .465 .465 .465
.159 .164 .169 .173 .175 .182 .187
.141 .145 .150 .155 .159 .164 .169
.698 .698 .698 .698 .698 .698 .698
.744 .744 .744 .744 .744 .744 .744
.791 .791 .791 .791 .791 .791 .791
11711
301
273
199
.471
.169
.150
.707
.754
.801
14761 14762 14763
297 299 301
269 271 273
196 198 200
.498 .498 .498
.160 .165 .169
.142 .146 .150
.747 .747 .747
.797 .797 .797
.847 .847 .847
LOBE LIFT
SOLID ROLLER
SOLID ROLLER
XDP ROLLERS The XDP Rollers are based off the DPD and HPX series, with short lash ramps for tight lash applications. Can be used for either intake or exhaust side and provide outstanding area along with short seat timing. CAMSHAFT TYPE
XDP Series Rated Duration @ .020" Tappet Lift MI 26.9 (13.1/13.8)
LOBE #
RATED DURATION
11607 11609 11611 11113 11115 11116 11117 11119
280 284 288 292 296 298 300 304
DURATION IN DEGREES @ .050
@ .200
253 257 261 265 269 271 273 277
181 185 189 193 197 199 201 205
LOBE LIFT
.465 .465 .465 .465 .465 .465 .465 .465
TAPPET LIFT @ TDC 106°
110°
.127 .136 .145 .155 .164 .169 .174 .183
.109 .118 .127 .136 .145 .150 .155 .164
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.698 .244 .244 .244 .244 .244 .244 .244
.744 .260 .260 .260 .260 .260 .260 .260
.791 .277 .277 .277 .277 .277 .277 .277
DZL ROLLERS The DZL rollers are based off a combination of the DSL and our extremely agressive UL series. The DZL series maximizes the area under the curve avalible for 55mm journal applications with a .800" or larger roller lifter wheel (RE Suffix). These should be very good in NHRA Super Stock applictions or any other limited RPM application that can take advantage of an aggressive .520" lift intake profile. CAMSHAFT TYPE
LOBE #
RATED DURATION
DZL Rollers Rated Duration @ .020" Tappet Lift
14682
Journal = RE+ MI 26.9 (13.2/13.7)
DURATION IN DEGREES @ .050
@ .200
297
270
201
14683
299
272
14684
301
274
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.520
.170
.150
.832
.884
.936
203
.520
.175
.155
.832
.884
.936
205
.520
.181
.160
.832
.884
.936
UL ROLLERS The UL Roller lobes are extremely aggressive for 55mm+ journal sizes, .850" roller wheels, and lower rocker ratios. Best for use in either applications like Super Stock class racing when component life may be 2-4 passes or limited engine speed applications. These are not for the faint of heart. CAMSHAFT TYPE
UL Rollers Rated Duration @ .020" Tappet Lift Journal = RG,M MI 25.6 (12.6/13.0)
LOBE #
RATED DURATION
11918 11919 11920 11922 11924 11926 11928
295 297 299 303 307 311 315
DURATION IN DEGREES @ .050
@ .200
269 271 273 277 281 285 289
205 206 208 212 216 220 224
LOBE LIFT
.545 .545 .545 .545 .545 .545 .545
TAPPET LIFT @ TDC 106°
110°
.178 .184 .190 .201 .213 .224 .235
.156 .161 .167 .178 .190 .201 .212
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.818 .818 .818 .818 .818 .818 .818
.872 .872 .872 .872 .872 .872 .872
.927 .927 .927 .927 .927 .927 .927
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
KZU ROLLERS
The KZU Roller lobes are extremely aggressive for 55mm+ journal sizes, .900" roller wheels, and lower rocker ratios. These are even one step past the UL series. CAMSHAFT TYPE
LOBE #
RATED DURATION
KZU Rollers Rated Duration @ .020" Tappet Lift
11954 11955 11956 11957 11958
299 301 303 305 307
Journal = RN,RH,M MI 24.9 (12.3/12.6)
DURATION IN DEGREES @ .050
@ .200
274 276 278 280 282
211 213 215 217 219
LOBE LIFT
.547 .547 .547 .547 .547
TAPPET LIFT @ TDC 106°
110°
.199 .205 .210 .216 .222
.175 .181 .187 .193 .198
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.821 .821 .821 .821 .821
.875 .875 .875 .875 .875
.930 .930 .930 .930 .930
KEM ROLLERS The KEM roller lobes are slightly softer than the KZU but still extremely aggressive roller lobes for 55mm+ journal sizes, .750" roller wheels, and lower rocker ratios. These are even one step past the UL series in the mid-lift rang, and far past the DSS and DEM series everywhere.
CAMSHAFT TYPE
LOBE #
RATED DURATION
KEM Rated Duration @ .020" Tappet Lift
11962
Journal = R,Q, M MI 26.0 (12.9/13.1)
DURATION IN DEGREES @ .050
@ .200
269
243
178
11964
273
247
11966
275
251
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.520
.106
.091
.780
.832
.884
182
.524
.119
.100
.786
.838
.891
186
.528
.128
.108
.792
.845
.898
CE DRAG RACE INTAKE ROLLERS The CE Drag Race Intake profiles are intended for very large port, high flow cylinder head applications. They work well in the high RPM range where Comp Eliminator and similar high RPM small displacement engines operate. CAMSHAFT TYPE
CE Drag Race Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 40.0 (20.0/20.0)
LOBE #
RATED DURATION
1286 1288 1295 1260 1278 1268 1271 1272
310 314 316 318 318 320 320 322
DURATION IN DEGREES @ .050
@ .200
274 278 280 282 282 284 284 286
189 192 194 194 196 196 198 198
LOBE LIFT
.484 .484 .484 .474 .484 .476 .484 .478
TAPPET LIFT @ TDC 106°
110°
.154 .162 .166 .160 .170 .165 .174 .169
.138 .146 .150 .144 .153 .148 .157 .152
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.774 .774 .774 .758 .774 .762 .774 .765
.823 .823 .823 .806 .823 .809 .823 .813
.871 .871 .871 .853 .871 .857 .871 .860
SOLID ROLLER
SOLID ROLLER
HIGH RPM INTAKE ROLLERS The High RPM Intake Roller is used on highly modified, high RPM drag race motors. They are used primarily with ported heads that incorporate lightweight valves and high spring loads. LOBE #
RATED DURATION
1301 1309 1302 4107 4068 4085 4091 4063 1490 4118
High RPM Intake Rated Duration @ .020" Tappet Lift MI 35.0 (14.3/20.7)
CAMSHAFT TYPE
High RPM Intake Rated Duration @ .020" Tappet Lift MI 40.0 (20.0/20.0)
DURATION IN DEGREES @ .050
@ .200
318-6 324-7 324-6 328-6 328-5 328-11 330-10 332-7 332-6 336-4
278 284 284 288 288 288 287 292 292 296
195 198 200 201 203 203 203 204 206 209
1030
324-30
288
1046
326-30
293
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.465 .456 .471 .456 .476 .483 .480 .456 .476 .476
.161 .171 .172 .177 .180 .179 .180 .184 .188 .195
.144 .154 .155 .161 .163 .162 .163 .167 .171 .178
.698 .684 .707 .684 .714 .725 .720 .684 .714 .714
.744 .730 .754 .730 .762 .773 .768 .730 .762 .762
.791 .775 .801 .775 .809 .821 .816 .775 .809 .809
207
.510
.188
.171
.765
.816
.867
211
.510
.198
.180
.765
.816
.867
DASH 31 ROLLERS The Dash 31 Rollers are a more aggressive cousin of the original -30 lobes that were popular in Pro Stock in the early 90s. These have been used successfully in Pro Stock but are preferred for use in applications operating below 9000 RPM. These profiles result in excellent torque and make very good power up to the limiting speed of the valve train. CAMSHAFT TYPE
LOBE #
RATED DURATION
Dash 31 Rollers Rated Duration @ .020" Tappet Lift
1186
MI 31.0 (15.5/15.5)MI
DURATION IN DEGREES @ .050
@ .200
306-31
275
198
1188
308-31
277
1176
310-31
1180
312-31
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.520
.166
.147
.832
.884
.936
200
.520
.171
.152
.832
.884
.936
279
202
.520
.176
.157
.832
.884
.936
281
204
.520
.181
.162
.832
.884
.936
MOUNTAIN MOTOR ROLLERS These are assorted intake profiles that have been developed for large cubic inch, blown, and/or nitrous applications that respond favorably to more area and are not required to run over 9000 RPM. These have been used with high rocker ratios to result in over 1.000" valve lift in lower RPM applications. CAMSHAFT TYPE
LOBE #
RATED DURATION
Mountain Motor Rated Duration @ .020" Tappet Lift MI 29.6 (14.1/15.5)
1027
DURATION IN DEGREES @ .050
@ .200
322
292
214
1028
326
296
1240
324
294
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
106°
110°
.517
.206
.187
.879
.931
.982
218
.525
.216
.197
.893
.945
.998
214
.520
.201
.182
.884
.936
.988
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
The REV Drag Race Rollers use some of the latest ramp designs to provide excellent torque, power and high speed stability for high RPM competition drag race applications. When coupled with high rocker ratios, these profiles provide more area than comparable standard ratio designs. CAMSHAFT TYPE
REV Drag Race Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 32.6 (15.5/17.1)
LOBE #
RATED DURATION
1770 1771 1839 1840 1841 1842 1843 1844 1845 1846
301 303 305 307 309 311 313 315 317 319
DURATION IN DEGREES @ .050
@ .200
268 270 272 274 276 278 280 282 284 286
188 190 192 194 196 198 199 201 203 205
LOBE LIFT
.460 .460 .460 .460 .460 .460 .460 .460 .460 .460
TAPPET LIFT @ TDC 106°
110°
.147 .152 .156 .160 .164 .169 .173 .177 .181 .186
.130 .135 .139 .143 .147 .151 .156 .160 .164 .168
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.736 .736 .736 .736 .736 .736 .736 .736 .736 .736
.782 .782 .782 .782 .782 .782 .782 .782 .782 .782
.828 .828 .828 .828 .828 .828 .828 .828 .828 .828
RX DRAG RACE INTAKE ROLLERS The RX Drag Race Rollers are similar to the REV designs, except they have more lift and use sections of our popular RX ramp. These designs have proven to provide an outstanding combination of high RPM power and stability while not sacrificing torque. Excellent in applications from high end bracket engines to Comp Eliminator and Pro Stock. CAMSHAFT TYPE
RX Drag Race .470" Lobe Lift Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 32.6 (15.5/17.1)
RX Drag Race .484" Lobe Lift Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 32.6 (15.5/17.1)
LOBE #
RATED DURATION
1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1718 1819 1820
DURATION IN DEGREES @ .050
@ .200
294 296 298 300 302 304 306 308 310 312 314 316 318 320 322
261 263 265 267 269 271 273 275 277 279 281 283 285 287 289
181 183 185 187 189 191 193 195 196 198 200 202 204 206 208
1824
330
297
1826 1827 1828 1829 1719 1831 1832
310 312 314 316 318 320 322
277 279 281 283 285 287 289
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.470 .470 .470 .470 .470 .470 .470 .470 .470 .470 .470 .470 .470 .470 .470
.131 .135 .139 .143 .148 .152 .156 .161 .165 .169 .174 .178 .183 .186 .191
.114 .118 .122 .127 .131 .135 .139 .143 .147 .152 .156 .160 .165 .169 .173
.752 .752 .752 .752 .752 .752 .752 .752 .752 .752 .752 .752 .752 .752 .752
.799 .799 .799 .799 .799 .799 .799 .799 .799 .799 .799 .799 .799 .799 .799
.846 .846 .846 .846 .846 .846 .846 .846 .846 .846 .846 .846 .846 .846 .846
215
.470
.208
.190
.752
.799
.846
197 199 201 203 204 206 208
.484 .484 .484 .484 .484 .484 .484
.165 .170 .174 .179 .183 .188 .191
.148 .152 .156 .161 .165 .169 .174
.774 .774 .774 .774 .774 .774 .774
.823 .823 .823 .823 .823 .823 .823
.871 .871 .871 .871 .871 .871 .871
SOLID ROLLER
REV DRAG RACE INTAKE ROLLERS
SOLID ROLLER
SOLID ROLLER
RX PRO DRAG RACE INTAKE ROLLERS These use the same ramps as the RX Drag Race .484" lobes but have more lift for all out applications. CAMSHAFT TYPE
RX Pro Drag Race Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 32.6 (15.5/17.1)
RX Drag Race .515" Lobe Lift Rated Duration @ .020" Tappet Lift
LOBE #
RATED DURATION
1722 1724 1726 1727 1728 1729 1730 1739 1740 1741 1742 1743 1744 1736 1745 1737 1746 1747 1748 1749
DURATION IN DEGREES @ .050
@ .200
308 310 312 314 316 318 320 322
275 277 279 281 283 285 287 289
195 197 199 201 203 205 207 209
306 308 310 312 314 316 318 320 322 326 330 334
273 275 277 279 281 283 285 287 289 293 297 301
194 196 197 199 201 203 205 207 209 213 217 220
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.488 .491 .492 .493 .496 .497 .499 .500
.161 .165 .170 .175 .180 .184 .188 .193
.143 .148 .152 .156 .160 .165 .170 .174
.781 .786 .787 .789 .794 .795 .798 .800
.830 .835 .836 .838 .843 .845 .848 .850
.878 .884 .886 .887 .893 .895 .898 .900
.515 .515 .515 .515 .515 .515 .515 .515 .515 .515 .515 .515
.157 .161 .166 .170 .175 .180 .184 .189 .193 .202 .211 .220
.139 .144 .148 .152 .157 .161 .166 .170 .175 .184 .192 .201
.824 .824 .824 .824 .824 .824 .824 .824 .824 .824 .824 .824
.876 .876 .876 .876 .876 .876 .876 .876 .876 .876 .876 .876
.927 .927 .927 .927 .927 .927 .927 .927 .927 .927 .927 .927
HIGH RPM EXHAUST ROLLERS These lobes are used on the exhaust side of highly modified, high RPM race engines. The cylinder head efficiency directly determines the design used. CAMSHAFT TYPE
High RPM Exhaust Rated Duration @ .020" Tappet Lift MI 40.0 (20.0/20.0)
LOBE #
RATED DURATION
4050 4067 4074 1495 4055 1484 1320 1485 4247 1487 1306 1489 4051 4064
319-1 322-3 326-4 328-2 330-1 330-5 332-2 334-3 336-5 338-2 340-3 342-2 342-3 344-3
DURATION IN DEGREES @ .050
@ .200
280 284 288 291 292 292 292 296 296 300 300 302 302 304
185 190 194 222 196 196 203 200 205 204 208 207 210 214
LOBE LIFT
.400 .420 .420 .427 .420 .420 .440 .420 .440 .420 .440 .420 .460 .470
TAPPET LIFT @ TDC 106°
110°
.152 .160 .166 .181 .168 .173 .182 .179 .188 .185 .193 .192 .198 .207
.137 .145 .151 .165 .152 .158 .166 .165 .172 .171 .177 .177 .182 .190
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.600 .630 .630 .641 .630 .630 .660 .630 .660 .630 .660 .630 .690 .705
.640 .672 .672 .683 .672 .672 .704 .672 .704 .672 .704 .672 .736 .752
.680 .714 .714 .726 .714 .714 .748 .714 .748 .714 .748 .714 .782 .799
Continued on page 111
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
HIGH RPM EXHAUST ROLLERS Continued
High RPM Exhaust Rated Duration @ .020" Tappet Lift MI 40.0 (20.0/20.0)
LOBE #
RATED DURATION
1494 4052 4053 1152 4056 4057
344-4 344-5 348-1 352-1 356-5 360-5
DURATION IN DEGREES @ .050
@ .200
304 304 308 312 316 320
211 214 217 222 227 230
LOBE LIFT
.440 .460 .460 .477 .480 .480
TAPPET LIFT @ TDC 106°
110°
.201 .207 .212 .222 .231 .238
.185 .190 .195 .205 .214 .221
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.660 .690 .690 .716 .720 .720
.704 .736 .736 .763 .768 .768
.748 .782 .782 .811 .816 .816
SOLID ROLLER
CAMSHAFT TYPE
JX DRAG RACE EXHAUST ROLLERS The JX Drag Race Exhaust profiles are good complements to either the CE, REV or RX intake designs. They are intended for very large port, high flow cylinder head applications and work well in the high RPM range where Comp Eliminator and similar high RPM small displacement engines operate. CAMSHAFT TYPE
JX Drag Race Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 41.5 (20.7/20.7)
LOBE #
RATED DURATION
1764 1765 1766 1285 1261 1287 1291 1263 1289 1269 1293 1273 1767 1768 1769
327 329 331 333 335 335 337 339 339 341 341 343 345 347 349
DURATION IN DEGREES @ .050
@ .200
286 288 290 292 294 294 296 298 298 300 300 302 304 306 308
190 192 194 196 198 198 200 201 202 203 203 205 207 209 211
LOBE LIFT
.460 .460 .460 .460 .446 .460 .460 .446 .460 .448 .460 .450 .460 .460 .460
TAPPET LIFT @ TDC 106°
110°
.156 .160 .163 .167 .171 .171 .175 .179 .179 .183 .183 .187 .191 .195 .198
.141 .145 .148 .152 .156 .156 .160 .163 .163 .167 .167 .171 .175 .179 .183
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.736 .736 .736 .736 .714 .736 .736 .714 .736 .717 .736 .720 .736 .736 .736
.782 .782 .782 .782 .758 .782 .782 .758 .782 .762 .782 .765 .782 .782 .782
.828 .828 .828 .828 .803 .828 .828 .803 .828 .806 .828 .810 .828 .828 .828
XCX DRAG RACE EXHAUST ROLLERS The XCX Rrollers provide state-of-the-art ramp designs with the ramp characteristics required to decrease pumping losses and allow exhaust gasses from overlap to provide signal to accelerate the intake charge into the cylinder in large port, drag race applications. These modern designs are very stable and respond well to rocker ratio increases. CAMSHAFT TYPE
XCX Drag Race Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 38.0 (19.0/19.0)
LOBE #
RATED DURATION
1850 1851 1960 1860 1962 1861 1862 1964 1864
320 322 324 326 328 328 330 332 334
DURATION IN DEGREES @ .050
@ .200
282 284 286 288 290 290 292 294 296
194 197 198 200 202 202 204 206 208
LOBE LIFT
.460 .466 .450 .470 .450 .470 .470 .450 .470
TAPPET LIFT @ TDC 106°
110°
.162 .167 .170 .175 .179 .179 .183 .187 .192
.146 .151 .154 .158 .162 .162 .166 .170 .175
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.736 .746 .720 .752 .720 .752 .752 .720 .752
.782 .792 .765 .799 .765 .799 .799 .765 .799
.828 .839 .810 .846 .810 .846 .846 .810 .846
Continued on page 112
SOLID ROLLER
SOLID ROLLER
XCX DRAG RACE EXHAUST ROLLERS Continued CAMSHAFT TYPE
XCX Drag Race Rated Duration @ .020" Tappet Lift Journal = N,S,B,R… MI 38.0 (19.0/19.0)
XCX .484 Drag Rated Duration @ .020" Tappet Lift Journal = S,B,F,R… MI 38.0 (19.0/19.0)
XCX Pro Drag Race Rated Duration @ .020" Tappet Lift Journal = B,F,R,M… MI 38.0 (19.0/19.0)
LOBE #
RATED DURATION
1966 1866 1968 1868 1970 1870
DURATION IN DEGREES @ .050
@ .200
336 338 340 342 344 346
298 300 302 304 306 308
210 212 214 216 217 220
1751 1752 1753 1758 1759 1760 1761 1763 1772 1785 1773 1777
318 322 326 330 334 338 342 344 346 348 350 356
280 284 288 292 296 300 304 306 308 310 312 318
1871 1872 1873 1874 1875 1876 1877 1878 1879 1869 1893
330 332 334 336 338 340 342 344 346 348 350
292 294 296 298 300 302 304 306 308 310 312
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
106°
110°
.450 .470 .450 .470 .450 .470
.195 .200 .203 .209 .211 .217
.178 .183 .186 .191 .194 .200
.720 .752 .720 .752 .720 .752
.765 .799 .765 .799 .765 .799
.810 .846 .810 .846 .810 .846
193 197 201 205 209 212 216 218 220 222 224 230
.484 .484 .484 .484 .484 .484 .484 .484 .484 .484 .484 .484
.159 .167 .175 .184 .192 .201 .210 .214 .218 .222 .226 .239
.142 .150 .158 .167 .175 .184 .192 .196 .200 .205 .209 .222
.774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774 .774
.823 .823 .823 .823 .823 .823 .823 .823 .823 .823 .823 .823
.871 .871 .871 .871 .871 .871 .871 .871 .871 .871 .871 .871
205 207 209 211 213 215 217 219 221 223 225
.500 .502 .504 .506 .508 .510 .512 .514 .516 .520 .522
.184 .188 .193 .197 .202 .206 .211 .215 .220 .224 .229
.167 .171 .175 .180 .184 .188 .193 .197 .202 .206 .210
.800 .803 .806 .810 .813 .816 .819 .822 .826 .832 .835
.850 .853 .857 .860 .864 .867 .870 .874 .877 .884 .887
.900 .904 .907 .911 .914 .918 .922 .925 .929 .936 .940
XJX DRAG EXHAUST ROLLERS The XJX Drag Race lobes are like the XCX but with higher acceleration rates, more lift, and more area under the curve. The asymmetric design with higher opening acceleration helps move more exhaust gas at bottom dead center, reducing losses as the piston comes up, driving the remaining exhaust from the cylinder. These profiles are designed for very stiff valve train systems with 60mm journals and larger, 0.850" diameter roller lifter wheels. CAMSHAFT TYPE
XJX Drag Exh. Rated Duration @ .020" Tappet Lift Journal = B,F,R,M… MI 37.6 (18.1/19.5)
LOBE #
RATED DURATION
1880 1884 11000 11001 2054 11002 1680 1886
324 332 334 334 334 334 334 336
DURATION IN DEGREES @ .050
@ .200
286 294 296 296 296 296 296 298
204 212 213 214 214 214 214 216
LOBE LIFT
.502 .522 .502 .517 .526 .532 .538 .532
TAPPET LIFT @ TDC 106°
110°
.179 .199 .201 .203 .203 .204 .204 .209
.161 .180 .183 .184 .184 .185 .184 .189
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.803 .835 .803 .827 .842 .851 .861 .851
.853 .887 .853 .879 .894 .904 .915 .904
.904 .940 .904 .931 .947 .958 .968 .958
Continued on page 113
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
XJX DRAG EXHAUST ROLLERS Continued
XJX Drag Exh. Rated Duration @ .020" Tappet Lift Journal = B,F,R,M… MI 37.6 (18.1/19.5)
LOBE #
RATED DURATION
1681 1108 1682 1110 1601 1111 1239 1683 11103 1112 11003 1227 1684 11104 1245 1685 11105 1686 11106 1687 11107 1688 1699
336 338 338 339 339 340 340 340 340 341 341 342 342 342 344 344 344 346 346 348 348 350 352
DURATION IN DEGREES @ .050
@ .200
298 300 300 301 301 302 302 302 302 303 303 304 304 304 306 306 306 308 308 310 310 312 314
216 218 218 218 219 219 220 220 220 220 221 221 222 222 223 224 224 226 226 228 228 230 232
LOBE LIFT
.540 .521 .542 .522 .544 .523 .535 .544 .561 .524 .543 .525 .546 .563 .525 .548 .565 .550 .567 .552 .569 .554 .556
TAPPET LIFT @ TDC 106°
110°
.209 .212 .214 .215 .216 .217 .218 .219 .219 .219 .214 .222 .224 .224 .226 .229 .229 .234 .234 .240 .240 .245 .249
.189 .193 .194 .195 .196 .198 .198 .199 .199 .200 .194 .202 .204 .204 .207 .209 .209 .214 .214 .220 .220 .225 .230
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.864 .834 .867 .835 .870 .837 .856 .870 .898 .838 .869 .840 .874 .901 .840 .877 .904 .880 .907 .883 .910 .886 .890
.918 .886 .921 .887 .925 .889 .910 .925 .954 .891 .923 .893 .928 .957 .893 .932 .961 .935 .964 .938 .967 .942 .945
.972 .938 .976 .940 .979 .941 .963 .979 1.010 .943 .977 .945 .983 1.013 .945 .986 1.017 .990 1.021 .994 1.024 .997 1.001
XJS EXHAUST DRAG RACE ROLLERS The XJS Drag Race lobes are like the XJX but possibly a touch smoother with higher lift. CAMSHAFT TYPE
LOBE #
RATED DURATION
XJS Drag Race Rated Duration @ .020" Tappet Lift Journal = R,M,K… MI 37.6 (18.1/19.5)
2008 14049 14050 14051 14052 14053 14054
346 348 350 352 354 356 358
DURATION IN DEGREES @ .050
@ .200
308 310 312 314 316 318 320
226 228 230 232 234 236 238
LOBE LIFT
.567 .569 .571 .573 .575 .577 .579
TAPPET LIFT @ TDC 106°
110°
.234 .239 .244 .249 .254 .259 .264
.214 .219 .224 .229 .234 .239 .244
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.964 .967 .971 .974 .978 .981 .984
1.021 1.024 1.028 1.031 1.035 1.039 1.042
1.077 1.081 1.085 1.089 1.093 1.096 1.100
SOLID ROLLER
CAMSHAFT TYPE
SOLID ROLLER
SOLID ROLLER
PRO MOD EXHAUST ROLLERS The Pro Mod Exhaust Series is very similar to the original High RPM Exhaust Series but with higher lifts and larger durations. These are excellent for either Mountain Motors or Pro Mod applications where more time and more area are required to scavenge the cylinder. CAMSHAFT TYPE
LOBE #
RATED DURATION
Pro Mod Exh. Rated Duration @ .020" Tappet Lift Journal = B,F,R,M… MI 39.6 (19.8/19.8)
1181 1183 1185 1187 1189
352 356 360 364 368
DURATION IN DEGREES @ .050
@ .200
312 316 320 324 328
226 228 232 235 240
LOBE LIFT
.510 .510 .510 .510 .510
TAPPET LIFT @ TDC 106°
110°
.231 .235 .244 .250 .259
.212 .217 .226 .233 .242
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.816 .816 .816 .816 .816
.867 .867 .867 .867 .867
.918 .918 .918 .918 .918
VOI PRO DRAG RACE ROLLERS The VOI Pro Drag lobes are a newer family, smoother than the DR and TSP lobes. They are used in professional class drag racing or similar applications and are excellent for use at very high RPM. CAMSHAFT TYPE
LOBE #
RATED DURATION
VOI Pro Rated Duration @ .020" Tappet Lift MI 30.7 (15.1/15.6)
11166 11170 11171 11172
313 317 319 321
DURATION IN DEGREES @ .050
@ .200
282 286 288 290
203 207 209 211
LOBE LIFT
.529 .531 .532 .533
TAPPET LIFT @ TDC 106°
110°
.183 .192 .197 .201
.165 .174 .178 .183
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
.952 .956 .958 .959
1.005 1.009 1.011 1.013
1.058 1.062 1.064 1.066
DR PRO DRAG INTAKE ROLLERS The DR Pro Drag lobes are more aggressive than the RX Pro Drag lobes. They are used in professional class drag racing or similar applications and are not recommended for use above 10,000 RPM. These use our latest design techniques to provide excellent area and improved dynamics over similar profiles. CAMSHAFT TYPE
DR Pro Drag Int. Rated Duration @ .020" Tappet Lift Journal = B,F,R,M… MI 31.0 (15.3/15.7)
LOBE #
RATED DURATION
1912 1914 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934
301 305 307 309 311 313 315 317 319 321 323 325 327
DURATION IN DEGREES @ .050
@ .200
270 274 276 278 280 282 284 286 288 290 292 294 296
193 197 199 201 203 205 207 209 211 213 215 217 219
LOBE LIFT
.507 .509 .520 .521 .521 .522 .523 .524 .525 .526 .527 .528 .529
TAPPET LIFT @ TDC 106°
110°
.155 .164 .169 .173 .178 .183 .188 .193 .198 .202 .207 .212 .217
.137 .146 .150 .155 .159 .164 .169 .173 .178 .183 .188 .192 .197
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.862 .865 .884 .886 .886 .887 .889 .891 .893 .894 .896 .898 .899
.913 .916 .936 .938 .938 .940 .941 .943 .945 .947 .949 .950 .952
.963 .967 .988 .990 .990 .992 .994 .996 .998 .999 1.001 1.003 1.005
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SOLID ROLLER
SOLID ROLLER
RS DRAG INTAKE ROLLERS
The RS Drag Intake Rollers are similar to the DR designs, except with slightly quicker opening, more lift and a new controlled velocity design. These will be excellent in high rocker/high lift/high RPM applications, such as Comp Eliminator and Pro Stock classes where cylinder heads require .900" to 1.050" valve lift to perform. For use with 2.125" or larger cam bearings.. CAMSHAFT TYPE
RS Drag Int. Rated Duration @ .020" Tappet Lift Journal = R,M,K… MI 30.5 (14.9/15.6)
LOBE #
RATED DURATION
1577 1578 1579 1580 1581 1582 1585
306 308 310 312 314 316 318
DURATION IN DEGREES @ .050
@ .200
276 278 280 282 284 286 288
199 201 203 205 207 209 211
LOBE LIFT
.532 .534 .536 .538 .540 .542 .544
TAPPET LIFT @ TDC 106°
110°
.169 .174 .179 .183 .188 .193 .198
.151 .155 .160 .165 .169 .174 .179
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.904 .908 .911 .915 .918 .921 .925
.958 .961 .965 .968 .972 .976 .979
1.011 1.015 1.018 1.022 1.026 1.030 1.034
PQ PRO STOCK DRAG ROLLERS The PQ Pro Drag lobes are slightly smoother, higher lift designs based loosely on the DR Pro Drag lobes. They are use in professional class drag racing or similar applications. CAMSHAFT TYPE
LOBE #
RATED DURATION
PQ Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 30.5 (14.9/15.6)
1901 1903 1936 1937
304 306 308 310
DURATION IN DEGREES @ .050
@ .200
273 275 277 279
196 198 200 202
LOBE LIFT
.562 .564 .566 .568
TAPPET LIFT @ TDC 106°
110°
.161 .166 .170 .175
.143 .147 .152 .156
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
.899 .902 .906 .909
.955 .959 .962 .966
1.012 1.015 1.019 1.022
TS PRO ROLLERS The TS Pro Series is an aggressive Pro Stock series with faster ramps than the DR Drag Series. These designs get from .020" to .050" tappet lift and back in only 30°, resulting in the quickest drag race rollers COMP Cams® has released. CAMSHAFT TYPE
TS Pro Rated Duration @ .020" Tappet Lift Journal = F,R,M,K… MI 30.3 (14.7/15.6)
LOBE #
RATED DURATION
1402 1372 1403 1373 1398 1374 1399 1375 1400 1376 1377 1526 1527
307 TS309 309 TS311 311 TS313 313 TS315 315 TS317 TS319 TS321 TS323
DURATION IN DEGREES @ .050
@ .200
276 278 278 280 280 282 282 284 284 286 288 290 292
200 202 202 204 204 206 206 208 208 210 212 214 216
LOBE LIFT
.543 .535 .545 .537 .547 .539 .549 .541 .551 .543 .545 .547 .549
TAPPET LIFT @ TDC 106°
110°
.172 .176 .177 .181 .182 .186 .187 .191 .192 .196 .201 .206 .211
.153 .157 .158 .162 .162 .167 .167 .172 .172 .176 .181 .186 .191
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.923 .910 .927 .913 .930 .916 .933 .920 .937 .923 .927 .821 .824
.977 .963 .981 .967 .985 .970 .988 .974 .992 .977 .981 .875 .878
1.032 1.017 1.036 1.020 1.039 1.024 1.043 1.028 1.047 1.032 1.036 .930 .933
SOLID ROLLER
SOLID ROLLER
TS+ PRO ROLLERS The TS+ PRO series is based off the TS lobe series, but with even faster ramps and higher acceleration (almost like the early motion that would be achived with the TS and a 10% higher rocker ratio). Excellent for Pro Stock style drag racing applications. CAMSHAFT TYPE
TS+ Pro Rated Duration @ .020" Tappet Lift Journal = R,M,K… MI 29.2 (14.1/15.1)
LOBE #
RATED DURATION
1382 1383 1384 1385 1386 1388
307 309 311 313 315 317
DURATION IN DEGREES @ .050
@ .200
278 280 282 284 286 288
204 206 208 210 212 215
LOBE LIFT
TAPPET LIFT @ TDC
.540 .542 .544 .546 .548 .624
106°
110°
.182 .187 .192 .197 .202 .211
.162 .167 .172 .177 .182 .189
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.918 .921 .925 .928 .932 1.061
.972 .976 .979 .983 .986 1.123
1.026 1.030 1.034 1.037 1.041 1.186
TSP PRO ROLLERS The TSP Rollers are very modern, all purpose drag race lobes based loosely on the High RPM TS Pro Stock Drag lobes but with slightly lower acceleration and lift. These are an excellent choice for 2.165" and smaller journal camshafts where very high lobe lift lobes can compromise the base circle diameter, core strength and stability under high loads. These have shorter seat timing than older Fuel/Blown Alc lobes but should be very good in their place if run with tighter lash. CAMSHAFT TYPE
LOBE #
RATED DURATION
TSP Pro Rated Duration @ .020" Tappet Lift Journal = R,M,K… MI 30.6 (14.8/15.8)
11124 11126 11127 11128 11130 11132
318 322 324 326 330 334
DURATION IN DEGREES @ .050
@ .200
287 291 293 295 299 303
209 213 215 217 221 225
LOBE LIFT
TAPPET LIFT @ TDC
.529 .531 .532 .533 .535 .537
106°
110°
.191 .201 .206 .211 .221 .231
.172 .182 .187 .191 .201 .211
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.899 .903 .904 .906 .910 .913
.952 .956 .958 .959 .963 .967
1.005 1.009 1.011 1.013 1.017 1.020
DRZ PRO STOCK DRAG ROLLERS These profiles are high RPM Pro Stock designs for use in modern professional drag race classes. CAMSHAFT TYPE
DRZ Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = R,M,K,A… MI 30.6 (14.9/15.7)
LOBE #
RATED DURATION
1975 1976 1977 1978 1979 1980 1981 1971
306 308 310 312 314 316 318 320
DURATION IN DEGREES @ .050
@ .200
275 277 279 281 283 285 287 289
200 201 203 205 206 208 210 212
LOBE LIFT
TAPPET LIFT @ TDC
.560 .562 .564 .566 .568 .570 .572 .574
106°
110°
.168 .172 .177 .182 .186 .191 .196 .201
.149 .154 .158 .163 .167 .172 .177 .181
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.008 1.012 1.015 1.019 1.022 1.026 1.030 1.033
1.064 1.068 1.072 1.075 1.079 1.083 1.087 1.091
1.120 1.124 1.128 1.132 1.136 1.140 1.144 1.148
DQS PRO STOCK DRAG ROLLERS These profiles are high RPM Pro Stock designs for use in modern professional drag race classes. CAMSHAFT TYPE
LOBE #
RATED DURATION
DQS Pro Stock Drag Rated Duration @ .020" Tappet Lift
1939
MI 29.7 (14.6/15.1)
DURATION IN DEGREES @ .050
@ .200
309
279
204
1943
311
281
1945
313
283
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
106°
110°
.566
.180
.160
1.019
1.075
1.132
206
.568
.185
.166
1.022
1.079
1.136
208
.570
.190
.170
1.026
1.083
1.140
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SOLID ROLLER
DRS DRAG ROLLERS
SOLID ROLLER
The DRS Drag Rollers are the "evil cousin" of the DR drags. These are designed for very stiff valve train systems incorporating 60mm or larger cam journals. The major intensity of these are less than 30°, and these lobes provide more area under the curve than earlier DR designs. CAMSHAFT TYPE
DRS Drag Rated Duration @ .020" Tappet Lift Journal = R,M,K,A… MI 29.6 (14.4/15.2)
LOBE #
RATED DURATION
1986 1987 1988 1989 1990 1991 1992 1993 1982
302 304 306 308 310 312 314 316 320
DURATION IN DEGREES @ .050
@ .200
273 275 277 279 281 283 285 287 291
199 201 203 205 207 209 211 213 217
LOBE LIFT
.560 .563 .566 .569 .572 .575 .578 .581 .585
TAPPET LIFT @ TDC 106°
110°
.168 .173 .178 .183 .188 .193 .198 .203 .213
.148 .153 .158 .163 .167 .172 .177 .182 .192
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.008 1.013 1.019 1.024 1.030 1.035 1.040 1.046 1.053
1.064 1.070 1.075 1.081 1.087 1.093 1.098 1.104 1.112
1.120 1.126 1.132 1.138 1.144 1.150 1.156 1.162 1.170
DRD PRO STOCK DRAG ROLLERS The DRD Drag Race lobes are basically slightly improved higher lift versions of the DRS series that were developed on a later generation of design software. 60mm or larger cam journals. The major intensity of these are below 30 degrees, and these lobes provide outstanding area and surprising control at high RPM. CAMSHAFT TYPE
LOBE #
RATED DURATION
DRD Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = R,M,K,A… MI 29.3 (14.4/14.9)
11975 11976 11977 11978 11979
302 304 306 308 310
DURATION IN DEGREES @ .050
@ .200
273 275 277 279 281
200 202 204 206 208
LOBE LIFT
.572 .574 .576 .578 .580
TAPPET LIFT @ TDC 106°
110°
.170 .175 .180 .185 .190
.150 .155 .160 .165 .170
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.030 1.033 1.037 1.040 1.044
1.087 1.091 1.094 1.098 1.102
1.144 1.148 1.152 1.156 1.160
DRM PRO STOCK DRAG ROLLERS These profiles are modern Pro Stock style designs for use in professional drag race classes with increased area and acceleration compared to the DRD. These are outstanding if applications that do not require higher RPM or spring life compared to the DRD. CAMSHAFT TYPE
DRM Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 29.0 (14.2/14.8)
LOBE #
RATED DURATION
2387 2390 2391 2399 2392 2393
303 305 307 308 309 311
DURATION IN DEGREES @ .050
@ .200
274 276 278 279 280 282
202 204 206 207 208 210
LOBE LIFT
.570 .572 .574 .575 .576 .578
TAPPET LIFT @ TDC 106°
110°
.175 .180 .185 .188 .190 .196
.155 .160 .165 .167 .170 .175
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.026 1.030 1.033 1.035 1.037 1.040
1.083 1.087 1.091 1.093 1.094 1.098
1.140 1.144 1.148 1.150 1.152 1.156
SOLID ROLLER
SOLID ROLLER
DRI PRO STOCK DRAG ROLLERS The DRI Pro Stock designs fill the gap between current Pro Stock and Mountain Motor designs. For 60mm+ journals and .850" roller wheels. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
DRI Pro Stock Drag Rated Duration @ .020" Tappet Lift
2037 2039 2041 2042 2043 2044 2045 12060 12061
308 309 310 312 314 316 318 320 322
279 280 281 283 285 287 289 291 293
208 209 210 212 214 216 218 220 222
.575 .576 .577 .579 .581 .583 .585 .587 .589
.190 .192 .195 .200 .205 .211 .216 .222 .227
.169 .171 .174 .179 .184 .189 .195 .200 .205
1.035 1.037 1.039 1.042 1.046 1.049 1.053 1.057 1.060
1.093 1.094 1.096 1.100 1.104 1.108 1.112 1.115 1.119
1.150 1.152 1.154 1.158 1.162 1.166 1.170 1.174 1.178
2290 2291 2292 2293 2294 2295 2296 2297 2299
306 308 310 312 314 316 318 320 322
277 279 281 283 285 287 289 291 293
206 208 210 212 214 216 218 220 222
.582 .584 .586 .588 .590 .592 .594 .596 .598
.185 .190 .195 .201 .206 .212 .217 .223 .229
.164 .169 .174 .179 .184 .190 .195 .201 .206
1.048 1.051 1.055 1.058 1.062 1.066 1.069 1.073 1.076
1.106 1.110 1.113 1.117 1.121 1.125 1.129 1.132 1.136
1.164 1.168 1.172 1.176 1.180 1.184 1.188 1.192 1.196
@ .050
@ .200
106°
110°
1.7
1.8
1.9
281 285 289 293
210 214 218 222
.197 .208 .220 .231
.175 .186 .197 .208
1.074 1.081 1.088 1.088
1.138 1.145 1.152 1.152
1.201 1.208 1.216 1.216
Journal = RG,M,K,… MI 28.9 (14.2/14.7)
DRI Pro Stock Drag Rated Duration @ .020" Tappet Lift
1568 1570 1572 1567
310 314 318 322
LOBE LIFT
.632 .636 .640 .645
DZI PRO STOCK DRAG ROLLERS These profiles are higher RPM versions of the DRI designs for use in modern professional drag race classes. These are very much like a higher lift DRS. CAMSHAFT TYPE
LOBE #
RATED DURATION
DZI Pro Stock Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 29.8 (14.6/15.2)
2057 2058 2095 2182 2184
305 307 309 311 313
DURATION IN DEGREES @ .050
@ .200
275 277 279 281 283
201 204 206 208 209
LOBE LIFT
.571 .573 .575 .577 .579
TAPPET LIFT @ TDC 106°
110°
.173 .179 .184 .189 .194
.154 .159 .164 .169 .173
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.028 1.031 1.035 1.039 1.042
1.085 1.089 1.093 1.096 1.100
1.142 1.146 1.150 1.154 1.158
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
DRP PRO STOCK DRAG ROLLERS
These profiles are a Pro Stock style design very close to the DRD series but would achieve basically the same motion with a slightly lower rocker ratio. For use in modern professional drag race classes. CAMSHAFT TYPE
LOBE #
RATED DURATION
DRP Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 29.8 (14.6/15.2)
2385 2586 2587 2588 2589
309 311 313 315 317
DURATION IN DEGREES @ .050
@ .200
281 283 285 287 289
210 212 214 216 218
LOBE LIFT
.593 .595 .597 .599 .601
TAPPET LIFT @ TDC 106°
110°
.195 .201 .206 .212 .217
.174 .180 .185 .190 .196
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
1.008 1.012 1.015 1.018 1.022
1.067 1.071 1.075 1.078 1.082
1.127 1.131 1.134 1.138 1.142
DKL PRO DRAG ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
DKL Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 28.6 (14.1/14.5)
2430
DURATION IN DEGREES @ .050
@ .200
301
272
201
2419
303
274
2420
305
276
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
106°
110°
.578
.171
.151
1.040
1.098
1.156
203
.581
.176
.156
1.046
1.104
1.162
205
.584
.182
.161
1.051
1.110
1.168
TDS PRO STOCK DRAG ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
TDS Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 29.4 (14.5/14.9)
12066 12067 12068 12084 12090 12091
305 307 309 317 319 321
DURATION IN DEGREES @ .050
@ .200
276 278 280 288 290 292
202 204 206 214 216 218
LOBE LIFT
.569 .571 .573 .552 .554 .552
TAPPET LIFT @ TDC 106°
110°
.176 .181 .186 .205 .210 .215
.156 .161 .166 .185 .190 .195
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.024 1.028 1.031 .994 .997 .994
1.081 1.085 1.089 1.049 1.053 1.049
1.138 1.142 1.146 1.104 1.108 1.104
HDZ PRO STOCK DRAG ROLLERS The HDZ series is a very high RPM Pro Stock style design with design influences from the HXL series used in high RPM Super Stock type applications but with increased area and far more lift. CAMSHAFT TYPE
LOBE #
RATED DURATION
HDZ Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 28.3 (13.9/14.4)
11230 11231 11232 11236
DURATION IN DEGREES @ .050
@ .200
303 305 307
275 277 279
204 206 208
303
275
204
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
106°
110°
.579 .581 .583
.179 .184 .189
.158 .163 .168
1.042 1.046 1.049
1.100 1.104 1.108
1.158 1.162 1.166
.605
.180
.159
1.089
1.150
1.210
SOLID ROLLER
SOLID ROLLER
CPI DRAG RACE ROLLERS The CPI is a smoother design with slightly more ramp than the PRI Drag Series from Competition Eliminator style engines trying to maximize engine speed.
CAMSHAFT TYPE
CPI Rated Duration @ .020" Tappet Lift Journal = B, R, M MI 29.7 (14.5/15.2)
CPI Rated Duration @ .020" Tappet Lift Journal = R,M MI 29.7 (14.5/15.2)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
14848 14849 14850 14851 14852 14853 14854 14855 14856
289 291 293 295 297 299 301 305 305
259 261 263 265 267 269 271 273 275
182 184 186 188 190 192 194 195 199
.496 .498 .500 .502 .504 .506 .508 .510 .512
.131 .135 .139 .144 .148 .152 .157 .161 .166
.114 .118 .122 .126 .131 .135 .139 .144 .148
.843 .847 .850 .853 .857 .860 .864 .867 .870
.893 .896 .900 .904 .907 .911 .914 .918 .922
.942 .946 .950 .954 .958 .961 .965 .969 .973
14888 14889 14890 14891 14892 14893 14894
297 299 301 303 305 307 309
267 269 271 273 275 277 279
190 192 194 196 198 200 202
.535 .537 .539 .541 .543 .545 .547
.148 .153 .157 .162 .167 .172 .176
.131 .135 .139 .144 .148 .153 .157
.910 .913 .916 .920 .923 .927 .930
.963 .967 .970 .974 .977 .981 .985
1.017 1.020 1.024 1.028 1.032 1.036 1.039
14898 14899 14900 14901 14902
301 303 305 307 309
271 273 275 277 279
194 196 198 200 202
.559 .561 .563 .565 .567
.157 .162 .167 .172 .176
.139 .144 .148 .153 .157
.950 .954 .957 .961 .964
1.006 1.010 1.013 1.017 1.021
1.062 1.066 1.070 1.074 1.077
LOBE LIFT
PRI PLI PRO STOCK DRAG ROLLERS The PRI and PLI are great baseline Pro Stock intake style drag race roller lobes with excellent area under the curve and require less valve relief than lobes with similar ramp quickness and area. CAMSHAFT TYPE
PRI Pro Stock Rated Duration @ .020" Tappet Lift Journal = R, M, K... MI 28.4 (14.0/14.4)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.90
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
14406 14407 14408 14409 14410
296 298 300 302 304
268 270 272 274 276
193 195 197 199 201
.530 .532 .534 .536 .538
.153 .158 .162 .167 .172
.135 .139 .144 .148 .153
.901 .904 .908 .911 .915
.954 .958 .961 .965 .968
1.007 1.011 1.015 1.018 1.022
14416
296
268
193
.540
.153
.135
.918
.972
1.026
LOBE LIFT
Continued on page 121
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.75 1.85 1.85
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
PRI Pro Stock Drag Rated Duration @ .020" Tappet Lift
12416 12417 12418 12419 12420 12421 12422 12423 12424
296 298 300 302 304 306 308 310 312
268 270 272 274 276 278 280 282 284
193 195 197 199 201 203 205 207 209
.563 .565 .567 .569 .571 .573 .575 .577 .579
.153 .158 .163 .167 .172 .177 .182 .187 .192
.135 .139 .144 .148 .153 .158 .163 .167 .172
.985 .989 .992 .996 .999 1.003 1.006 1.010 1.013
1.042 1.045 1.049 1.053 1.056 1.060 1.064 1.067 1.071
1.098 1.102 1.106 1.110 1.113 1.117 1.121 1.125 1.129
12425 12426
314 316
286 288
211 213
.581 .583
.197 .202
.177 .182
1.017 1.020
1.075 1.079
1.133 1.137
@ .050
@ .200
106°
110°
1.7
1.8
1.9
12308 12309 12310 12311 12312
298 300 302 304 306
270 272 274 276 278
197 199 201 203 205
.580 .582 .584 .586 .588
.161 .166 .117 .176 .181
.142 .147 .151 .156 .161
.986 .989 .993 .996 1.000
1.044 1.048 1.051 1.055 1.058
1.102 1.106 1.110 1.113 1.117
12408
288
260
187
.570
.138
.120
.969
1.026
1.083
12400 12393 12394 12412
302 304 306 310
274 276 278 282
201 203 205 209
.603 .605 .607 .607
.171 .176 .181 .192
.152 .156 .161 .172
1.025 1.029 1.032 1.032
1.085 1.089 1.093 1.093
1.146 1.150 1.153 1.153
14240 14241 14242 14243 14244 14245 14246 14247 14248
302 304 306 308 310 312 314 316 318
274 276 278 280 282 284 286 288 290
202 204 206 208 210 212 214 216 218
.581 .583 .585 .587 .589 .591 .593 .595 .597
.175 .180 .186 .191 .196 .202 .207 .212 .218
.155 .160 .165 .170 .175 .180 .186 .190 .196
.988 .991 .995 .998 1.001 1.005 1.008 1.012 1.015
1.046 1.049 1.053 1.057 1.060 1.064 1.067 1.071 1.075
1.104 1.108 1.112 1.115 1.119 1.123 1.127 1.131 1.134
12428 12429 12430 12431 12432 12433
298 300 302 304 306 308
271 273 275 277 279 281
199 201 203 205 207 209
.613 .615 .617 .619 .621
.167 .172 .178 .183 .188
.147 .152 .157 .162 .167
.981 .984 .987 .990 .994
1.042 1.046 1.049 1.052 1.056
1.103 1.107 1.111 1.114 1.118
12434 12435 12436
310 312 314
283 285 287
211 213 215
.623 .625 .627 .629
.193 .199 .204 .210
.172 .178 .183 .188
.997 1.000 1.003 1.006
1.059 1.063 1.066 1.069
1.121 1.125 1.129 1.132
Journal = RE,M,K… MI 28.4 (14.0/14.4)
PGI Pro Stock Drag Rated Duration @ .020" Tappet Lift
PGI Pro Stock Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 27.8 (13.7/14.1)
POI Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 27.6 (13.6/14.0)
PLI Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 27.2 (13.4/13.8)
LOBE LIFT
SOLID ROLLER
PRI PLI PRO STOCK DRAG ROLLERS Continued
SOLID ROLLER PZI PRO STOCK DRAG ROLLERS
SOLID ROLLER
The PZI series is a tweaked version of the PRI & PLI Series that should perform better in applications running very close to coil bind, but these do require just a bit more valve clearance. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
PZI Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 27.8 (13.6/14.2)
12716 12721 12722 12723 12724 12725 12726 12727 12728
298 300 302 304 306 308 310 312 314
270 272 274 276 278 280 282 284 286
198 200 202 204 206 208 210 212 214
.572 .574 .576 .578 .580 .582 .584 .586 .588
.165 .170 .175 .180 .185 .190 .196 .201 .206
.145 .150 .155 .160 .165 .170 .175 .180 .185
.972 .976 .979 .983 .986 .989 .993 .996 1.000
1.030 1.033 1.037 1.040 1.044 1.048 1.051 1.055 1.058
1.087 1.091 1.094 1.098 1.102 1.106 1.110 1.113 1.117
PZI Mid Lift Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 27.8 (13.6/14.2)
12840 12841 12842 12843 12844 12845 12813 12850 12851 12852
298 300 302 304 306 308 310 302 304 306
270 272 274 276 278 280 282 274 276 278
199 200 202 204 206 208 210 202 204 206
.587 .589 .591 .593 .595 .597 .599 .606 .608 .610
.165 .170 .175 .180 .185 .190 .196 .175 .180 .185
.145 .150 .155 .160 .165 .170 .175 .155 .160 .165
.998 1.001 1.005 1.008 1.012 1.015 1.018 1.030 1.034 1.037
1.057 1.060 1.064 1.067 1.071 1.075 1.078 1.091 1.094 1.098
1.115 1.119 1.123 1.127 1.131 1.134 1.138 1.151 1.155 1.159
12939 12941 12942 12943 12740 12741 12742 12893 12894 12895 12896
298 300 302 304 306 308 310 312 314 316 318
270 272 274 276 278 280 282 284 286 288 290
198 200 202 204 206 208 210 212 214 216 218
.597 .599 .601 .603 .605 .607 .609 .611 .613 .615 .617
.165 .170 .175 .180 .186 .191 .196 .202 .207 .213 .218
.145 .150 .155 .160 .165 .170 .175 .180 .186 .191 .196
1.015 1.018 1.022 1.025 1.029 1.032 1.035 1.039 1.042 1.046 1.049
1.075 1.078 1.082 1.085 1.089 1.093 1.096 1.100 1.103 1.107 1.111
1.134 1.138 1.142 1.146 1.150 1.153 1.157 1.161 1.165 1.169 1.172
12743 12744 12745
302 304 306
274 276 278
202 204 206
.612 .614 .616
.175 .180 .185
.155 .160 .165
1.040 1.044 1.047
1.102 1.105 1.109
1.163 1.167 1.170
12495 12496 12497
302 304 306
274 276 278
202 204 206
.627 .629 .631
.175 .181 .186
.155 .160 .165
1.066 1.069 1.073
1.129 1.132 1.136
1.191 1.195 1.199
12759 12768 12756 12757 12758
301 303 305 307 309
274 276 278 280 282
204 206 208 210 212
.616 .618 .620 .622 .624
.180 .185 .191 .196 .202
.159 .164 .169 .174 .180
1.047 1.051 1.054 1.057 1.061
1.109 1.112 1.116 1.120 1.123
1.170 1.174 1.178 1.182 1.186
PZI Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 27.7 (13.6/14.1)
PZJ Rated Duration @ .020" Tappet Lift MI 27.0 (13.3/13.7)
LOBE LIFT
Continued on page 123
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
PZI PRO STOCK DRAG ROLLERS Continued LOBE #
RATED DURATION
PZJ Rated Duration @ .020" Tappet Lift Journal = K,A…
12209 12210 12211 12212 12213
PZJ Rated Duration @ .020" Tappet Lift MI 27.0 (13.3/13.7) Journal = K,A…
DURATION IN DEGREES @ .050
@ .200
301 303 305 307 309
274 276 278 280 282
204 206 208 210 212
12991 12992 12993 12994 12995
301 303 305 307 309
274 276 278 280 282
PZL Rated Duration @ .020" Tappet Lift MI 27.0 (13.3/13.7)
12984 12985 12769 12987 12988
301 303 305 307 309
PZM Rated Duration @ .020" Tappet Lift MI 26.6 (13.1/13.5)
12982
302.5
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
106°
110°
.631 .633 .635 .637 .639
.180 .185 .191 .196 .202
.159 .164 .169 .174 .180
1.073 1.076 1.080 1.083 1.086
1.136 1.139 1.143 1.147 1.150
1.199 1.203 1.207 1.210 1.214
204 206 208 210 212
.643 .645 .647 .649 .651
.180 .185 .191 .197 .202
.159 .164 .169 .175 .180
1.093 1.097 1.100 1.103 1.107
1.157 1.161 1.165 1.168 1.172
1.222 1.226 1.229 1.233 1.237
274 276 278 280 282
203 205 207 209 211
.579 .581 .583 .585 .587
.178 .183 .188 .194 .199
.157 .162 .167 .173 .178
.984 .988 .991 .995 .998
1.042 1.046 1.049 1.053 1.057
1.100 1.104 1.108 1.112 1.115
276
206
.583
.186
.165
.991
1.049
1.108
SOLID ROLLER
CAMSHAFT TYPE
PEZ PFZ PZZ PRO STOCK ROLLERS The PEZ, PZF and PZZ series are progressively smoother than the PZI & PZL series and should perform extremely well in applications stretching engine speed above what could be achived with earlier high lift and high area series. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
PEZ Rated Duration @ .020" Tappet Lift MI 27.9 (13.7/14.2)
12730 12737 12738 12739 12709
304 306 308 310 312
276 278 280 282 284
204 206 208 210 212
.581 .583 .585 .587 .589
.180 .185 .191 .196 .201
.160 .165 .170 .175 .180
.988 .991 .995 .998 1.001
1.046 1.049 1.053 1.057 1.060
1.104 1.108 1.112 1.115 1.119
11740 11748
308 308
280 280
208 208
.593 .617
.191 .191
.170 .170
1.008 1.049
1.067 1.111
1.127 1.172
11743
308
280
208
.593
.192
.171
1.008
1.067
1.127
11526
316
288
215
.564
.210
.190
.959
1.015
1.072
11480
308
280
208
.586
.190
.170
.996
1.055
1.113
11494 11495 11496
316 318 320
288 290 292
216 218 220
.636 .638 .640
.213 .218 .224
.191 .196 .202
1.081 1.085 1.088
1.145 1.148 1.152
1.208 1.212 1.216
11530 11531 11532
316 318 320
288 290 292
216 218 220
.668 .670 .672
.214 .220 .225
.192 .197 .203
1.136 1.139 1.142
1.202 1.206 1.210
1.269 1.273 1.277
PFZ Rated Duration @ .020" Tappet Lift MI 27.5 (13.5/14.0)
PZM Rated Duration @ .020" Tappet Lift MI 26.6 (13.1/13.5)
LOBE LIFT
SOLID ROLLER
SOLID ROLLER
SPH & SPI PRO STOCK DRAG ROLLERS The PZI series is a tweaked version of the PRI & PLI Series that should perform better in applications running very close to coil bind, but these do require just a bit more valve clearance. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
SPH Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 28.3 (13.9/14.4)
12254 12255 12256 12257 12258
303 305 307 309 311
275 277 279 281 283
203 205 207 209 211
.569 .571 .573 .575 .577
.177 .183 .188 .193 .198
.157 .162 .167 .173 .178
1.024 1.028 1.031 1.035 1.039
1.081 1.085 1.089 1.093 1.096
1.138 1.142 1.146 1.150 1.154
SPI Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 28.3 (13.9/14.4)
12214 12215 12216 12217 12218 12219 12220
303 305 307 309 311 313 315
275 277 279 281 283 285 287
203 205 207 209 211 213 215
.577 .579 .581 .583 .585 .587 .589
.178 .183 .188 .193 .198 .204 .209
.158 .163 .167 .173 .178 .183 .188
1.039 1.042 1.046 1.049 1.053 1.057 1.060
1.096 1.100 1.104 1.108 1.112 1.115 1.119
1.154 1.158 1.162 1.166 1.170 1.174 1.178
LOBE LIFT
JI PRO STOCK DRAG ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
JI Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 27.2 (13.4/13.8)
12390
DURATION IN DEGREES @ .050
@ .200
301
274
205
12391
303
276
12392
305
278
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
106°
110°
.574
.180
.159
1.033
1.091
1.148
207
.576
.186
.164
1.037
1.094
1.152
209
.578
.191
.170
1.040
1.098
1.156
PNI PRO STOCK DRAG ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
PNI Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 29.0 (14.3/14.7)
12294 12295 12296 12297 12298
315 317 319 321 323
DURATION IN DEGREES @ .050
@ .200
286 288 290 292 294
215 217 219 221 223
LOBE LIFT
.628 .630 .632 .634 .636
TAPPET LIFT @ TDC 106°
110°
.208 .214 .220 .225 .231
.186 .192 .197 .203 .208
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.130 1.134 1.138 1.141 1.145
1.193 1.197 1.201 1.205 1.208
1.256 1.260 1.264 1.268 1.272
DKN PRO STOCK DRAG ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
DKN Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 27.8 (13.7/14.1)
11258 11259 11260 11261 11262 11263 11265
299 301 303 305 307 309 311
DURATION IN DEGREES @ .050
@ .200
271 273 275 277 279 281 283
201 203 205 207 209 211 213
LOBE LIFT
.583 .585 .587 .589 .591 .593 .595
TAPPET LIFT @ TDC 106°
110°
.171 .176 .181 .187 .192 .198 .203
.150 .155 .160 .166 .171 .176 .182
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.049 1.053 1.057 1.060 1.064 1.067 1.071
1.108 1.112 1.115 1.119 1.123 1.127 1.131
1.166 1.170 1.174 1.178 1.182 1.186 1.190
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
FPI PRO STOCK DRAG ROLLERS
SOLID ROLLER
The FPI profiles are very high acceleration Pro Stock/Pro Mod style designs faster than any of the "D" or "P" series. Can provide great power with very stiff valve train and high valve spring loads but require care. CAMSHAFT TYPE
LOBE #
RATED DURATION
FPI Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = K,A… MI 27.9 (13.7/14.2)
12044 12045 12046 12047 12048
304 306 308 310 312
DURATION IN DEGREES @ .050
@ .200
276 278 280 282 284
206 208 210 212 214
LOBE LIFT
.612 .614 .616 .618 .620
TAPPET LIFT @ TDC 106°
110°
.183 .188 .194 .199 .205
.162 .167 .172 .178 .183
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
1.040 1.044 1.047 1.051 1.054
1.102 1.105 1.109 1.112 1.116
1.163 1.167 1.170 1.174 1.178
FOS PRO STOCK DRAG ROLLERS The FOS Series is like the FPI but a smoother design that can provide good control at high engine speed with a very stiff valve train system and tight lash settings. CAMSHAFT TYPE
FOS Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = K,A… MI 29.1 (14.1/15.0)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
12021 12022 12023 12094 12095
305 307 309 311 313
276 278 280 282 284
205 207 209 211 213
.615 .617 .619 .621 .623
.186 .191 .197 .202 .208
.165 .170 .176 .181 .186
1.046 1.049 1.052 1.056 1.059
1.107 1.111 1.114 1.118 1.121
1.169 1.172 1.176 1.180 1.184
12096 12127 12149
315 317 321
286 288 292
215 217 221
.623 .623 .623
.213 .219 .229
.191 .197 .208
1.059 1.059 1.059
1.121 1.121 1.121
1.184 1.184 1.184
LOBE LIFT
FSL PRO STOCK DRAG ROLLERS The FLS is like the FOS but for systems that require looser lash or do not have as stiff of a valve train system. Work well on the exhaust in smaller cubic inch and as an intake in larger cubic inch applications. CAMSHAFT TYPE
LOBE #
RATED DURATION
FSL Pro Stock Rated Duration @ .020" Tappet Lift MI 30.5 (14.7/15.8)
11192 11194 11195 11196
323 327 329 331
DURATION IN DEGREES @ .050
@ .200
292 296 298 300
219 223 225 227
LOBE LIFT
.620 .622 .623 .624
TAPPET LIFT @ TDC 106°
110°
.221 .232 .237 .243
.199 .210 .215 .221
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
1.054 1.057 1.059 1.061
1.116 1.120 1.121 1.123
1.178 1.182 1.184 1.186
FDZ PRO STOCK DRAG ROLLERS The FDZ is even faster than the FPI for maximum area in controlled engine speed applications or to obtain the area associated with high rocker ratios with lower ratio systems. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
FDZ Pro Stock Rated Duration @ .020" Tappet Lift Journal = K,A,0… MI 26.7 (13.1/13.6)
11060 11061 11062
303 305 307
276 278 280
209 211 211
.620 .622 .624
.190 .196 .207
.168 .173 .179
1.054 1.057 1.061
1.116 1.120 1.123
1.178 1.182 1.186
11066
303
276
209
.639
.190
.168
1.086
1.150
1.214
LOBE LIFT
SOLID ROLLER
SOLID ROLLER
FGZ PRO STOCK DRAG ROLLERS The FGZ are smoothed out versions on the FGZ for similar type applications but are definitely more stable as engine speeds increase. These work very well achiving outstanding area in lower ratio applications. CAMSHAFT TYPE
LOBE #
RATED DURATION
FGZ Pro Stock Rated Duration @ .020" Tappet Lift Journal = A,0… MI 26.8 (13.1/13.7)
11064 11075 11076 11077 11078
301 303 305 307 309
DURATION IN DEGREES @ .050
@ .200
274 276 278 280 282
207 209 211 213 215
LOBE LIFT
.660 .662 .664 .666 .668
TAPPET LIFT @ TDC 106°
110°
.190 .196 .202 .208 .214
.168 .173 .179 .185 .190
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
1.122 1.125 1.129 1.132 1.136
1.188 1.192 1.195 1.199 1.202
1.254 1.258 1.262 1.265 1.269
FPJ PRO STOCK DRAG ROLLERS The FPJ fast ramp with almost constant positive acceleration design philosophy in between the "D", "S" and "P" families. Slightly quicker than the FPI. CAMSHAFT TYPE
LOBE #
RATED DURATION
FPJ Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 27.0 (13.2/13.8)
12488
DURATION IN DEGREES @ .050
@ .200
302
275
206
12489
304
277
12490
306
279
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
106°
110°
.596
.184
.163
1.013
1.073
1.132
208
.598
.190
.168
1.017
1.076
1.136
210
.600
.195
.173
1.020
1.080
1.140
DJP ROLLERS The DJP is a newer entry in the "D" series of Pro Stock style lobes with faster ramps than all the earlier designs. Require tight lash and very stiff rocker arm systems. CAMSHAFT TYPE
DJP Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 26.3 (13.0/13.3)
LOBE #
RATED DURATION
11268 11269 11270 11271 11272 11273 11275
296 298 300 302 304 306 308
DURATION IN DEGREES @ .050
@ .200
270 272 274 276 278 280 282
202 204 206 208 210 212 214
LOBE LIFT
.611 .613 .615 .617 .619 .621 .623
TAPPET LIFT @ TDC 106°
110°
.172 .178 .183 .188 .194 .200 .205
.151 .156 .161 .167 .172 .177 .183
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.7 1.9
.917 .920 .923 .926 .929 .932 .935
1.039 1.042 1.046 1.049 1.052 1.056 1.059
1.161 1.165 1.169 1.172 1.176 1.180 1.184
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
12399 12341 12342 12343 12344
314 316 318 320 324
285 287 289 291 293
213 215 217 219 221
.656 .658 .660 .662 .664
.204 .209 .215 .221 .227
.182 .187 .193 .198 .204
1.181 1.184 1.188 1.192 1.195
1.246 1.250 1.254 1.258 1.262
1.312 1.316 1.320 1.324 1.328
11352 11353 11354
318 320 324
289 291 293
217 219 221
.688 .690 .692
.216 .222 .227
.193 .199 .204
1.238 1.242 1.246
1.307 1.311 1.315
1.376 1.380 1.384
PBM Pro Mod Drag Rated Duration @ .020" Tappet Lift MI 30.3 (14.5/15.8)
11368
317
287
214
.653
.208
.186
1.175
1.241
1.306
11369
319
289
216
.655
.214
.191
1.179
1.245
1.310
11370
321
291
218
.657
.219
.197
1.183
1.248
1.314
PBL Pro Mod Drag Rated Duration @ .020" Tappet Lift MI 30.9 (14.7/16.2)
11375
316
285
211
.622
.208
.186
1.120
1.182
1.244
11376
318
287
213
.624
.214
.191
1.123
1.186
1.248
11377
320
289
215
.626
.219
.197
1.127
1.189
1.252
CAMSHAFT TYPE
PSB Pro Mod Drag Rated Duration @ .020" Tappet Lift Journal = L,K,A… MI 29.1 (14.2/14.9)
LOBE LIFT
SOLID ROLLER
PSB PBM PBL PRO MOD DRAG ROLLERS
PSA PRO STOCK DRAG ROLLERS The PSA series is a smoother version than the PSB with otherwise similar characteristics for higher RPM applications that require more spring life than provided with the PSB. CAMSHAFT TYPE
LOBE #
RATED DURATION
PSA Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = MG,K,A… MI 29.4 (14.4/15.0)
12330 12331 12332 12333 12334
313 315 317 319 321
DURATION IN DEGREES @ .050
@ .200
284 286 288 290 292
211 213 215 217 219
LOBE LIFT
.632 .634 .636 .638 .640
TAPPET LIFT @ TDC 106°
110°
.198 .203 .209 .215 .220
.177 .182 .187 .193 .197
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.138 1.141 1.145 1.148 1.152
1.201 1.205 1.208 1.212 1.216
1.264 1.268 1.272 1.276 1.280
PMZ PRO MOD DRAG ROLLERS The PMZ Pro Mod style designs are similar to the PSB Series with increased area for lower RPM applications. CAMSHAFT TYPE
LOBE #
RATED DURATION
PMZ Pro Mod Drag Rated Duration @ .020" Tappet Lift Journal = L,K,A… MI 27.3 (13.1/14.2)
12352 12353 12356 12357 12358
314 316 318 320 322
DURATION IN DEGREES @ .050
@ .200
287 289 291 293 295
219 221 223 225 227
LOBE LIFT
.666 .668 .670 .672 .674
TAPPET LIFT @ TDC 106°
110°
.220 .226 .232 .239 .245
.196 .202 .208 .214 .220
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.199 1.202 1.206 1.210 1.213
1.265 1.269 1.273 1.277 1.281
1.332 1.336 1.340 1.344 1.348
SOLID ROLLER
SOLID ROLLER
PIC PRO STOCK DRAG ROLLERS Lower ratio intake design for 70mm, 75mm or 78mm effective journal size cams and low (1.5:1 to 1.7 ratios). CAMSHAFT TYPE
LOBE #
RATED DURATION
PIC Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = A,C,O… MI 27.8 (13.6/14.2)
11080 11081 11082 11083 11084
312 314 316 318 320
DURATION IN DEGREES @ .050
@ .200
284 286 288 290 292
215 217 219 221 223
LOBE LIFT
.718 .720 .722 .724 .726
TAPPET LIFT @ TDC 106°
110°
.209 .215 .221 .228 .234
.186 .192 .197 .203 .209
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
1.077 1.080 1.083 1.086 1.089
1.149 1.152 1.155 1.158 1.162
1.221 1.224 1.227 1.231 1.234
DRX DRAG EXHAUST ROLLERS The DRX Drag Exhaust lobes are a faster version of our XCX designs. They have a faster opening to increase torque and have more area under the curve. These work well with DRS intake lobes on 60mm or larger cores. CAMSHAFT TYPE
LOBE #
RATED DURATION
DRX Drag Exh. Rated Duration @ .020" Tappet Lift Journal = R,M,K… MI 35.0 (16.0/19.0)
1995 1996 1997 1998 1999
335 337 339 341 343
DURATION IN DEGREES @ .050
@ .200
300 302 304 306 308
215 217 219 221 223
LOBE LIFT
.529 .531 .533 .535 .537
TAPPET LIFT @ TDC 106°
110°
.202 .207 .212 .216 .221
.185 .189 .193 .198 .202
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
.952 .956 .959 .963 .967
1.005 1.009 1.013 1.017 1.020
1.058 1.062 1.066 1.070 1.074
XK PRO STOCK DRAG ROLLERS These profiles are high RPM Pro Stock designs for use in modern professional drag race classes. The XK series is two steps faster than the XCX and one step faster than the XJX series. CAMSHAFT TYPE
XK Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = R,M,K… MI 36.2 (18.0/18.2)
LOBE #
RATED DURATION
1734 1735 1723 1695 2724 2725 2726 2727 2728
334 336 337 338 340 342 344 346 348
DURATION IN DEGREES @ .050
@ .200
297 299 300 301 303 305 307 309 311
217 219 220 222 223 225 227 229 231
LOBE LIFT
.566 .566 .566 .566 .568 .570 .572 .574 .576
TAPPET LIFT @ TDC 106°
110°
.215 .220 .222 .225 .229 .234 .239 .244 .249
.194 .199 .202 .204 .208 .213 .218 .223 .228
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.019 1.019 1.019 1.019 1.022 1.026 1.030 1.033 1.037
1.075 1.075 1.075 1.075 1.079 1.083 1.087 1.091 1.094
1.132 1.132 1.132 1.132 1.136 1.140 1.144 1.148 1.152
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SOLID ROLLER
These profiles are increased lift versions of the original XK series. CAMSHAFT TYPE
XKL Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 36.0 (17.9/18.1)
LOBE #
RATED DURATION
1833 1834 1775 1835 1836 1837 1847 1848 1849 1858 1859
334 336 338 340 342 344 346 348 350 352 354
DURATION IN DEGREES @ .050
@ .200
298 300 302 304 306 308 310 312 314 316 318
220 222 224 226 228 230 232 234 236 238 240
LOBE LIFT
.588 .590 .592 .594 .596 .598 .600 .602 .604 .606 .608
TAPPET LIFT @ TDC 106°
110°
.220 .226 .231 .236 .242 .247 .253 .258 .264 .269 .275
.200 .205 .210 .215 .220 .226 .231 .236 .242 .247 .253
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
1.000 1.003 1.006 1.010 1.013 1.017 1.020 1.023 1.027 1.030 1.034
1.058 1.062 1.066 1.069 1.073 1.076 1.080 1.084 1.087 1.091 1.094
1.117 1.121 1.125 1.129 1.132 1.136 1.140 1.144 1.148 1.151 1.155
SOLID ROLLER
XKL PRO STOCK DRAG ROLLERS
XK .635" PRO STOCK DRAG EXHAUST ROLLERS The XK Pro Stock Drag Exhaust lobes are a faster version of our XCX designs. The .635" lift series is optimized for big inch applications and 62.85 or 65mm journals. CAMSHAFT TYPE
XK .635" Pro Stock Drag Exh. Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 36.0 (17.9/18.1)
LOBE #
RATED DURATION
11560 11561 1562 1563 11563 1564 1565 1569 1571
344 346 348 352 354 356 360 362 364
DURATION IN DEGREES @ .050
@ .200
307 309 311 315 317 319 323 325 327
228 230 232 236 238 240 244 246 248
LOBE LIFT
.635 .635 .635 .635 .635 .635 .635 .635 .635
TAPPET LIFT @ TDC 106°
110°
.242 .248 .254 .264 .270 .275 .286 .291 .296
.220 .226 .232 .242 .248 .253 .264 .269 .274
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
1.080 1.080 1.080 1.080 1.080 1.080 1.080 1.080 1.080
1.143 1.143 1.143 1.143 1.143 1.143 1.143 1.143 1.143
1.207 1.207 1.207 1.207 1.207 1.207 1.207 1.207 1.207
XKH EXHAUST ROLLERS These profiles are increased lift versions of the XK .635" series. CAMSHAFT TYPE
XKH Exh. Rated Duration @ .020" Tappet Lift Journal = L,K,A… MI 34.3 (16.9/17.4)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
1825
344
310
233
.673
.258
.236
1.144
1.211
1.279
1789 1792 1823 1794
356 360 362 364
322 326 328 330
245 249 251 253
.685 .689 .691 .693
.293 .304 .310 .316
.270 .281 .287 .292
1.165 1.171 1.175 1.178
1.233 1.240 1.244 1.247
1.302 1.309 1.313 1.317
1790
357
323
247
.700
.299
.276
1.190
1.260
1.330
LOBE LIFT
SOLID ROLLER
SOLID ROLLER
XM PRO EXHAUST ROLLERS The XM Pro Exhaust profiles are similar to the XKX but have higher acceleration and more area. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
XM Pro Exh. Rated Duration @ .020" Tappet Lift MI 35.3 (17.5/17.8)
2078
331
296
219
.553
.217
.197
.940
.995
1.051
2079
333
298
221
.555
.222
.202
.944
.999
1.055
2055
335
300
222
.557
.227
.206
.947
1.003
1.058
LOBE LIFT
ZLX PRO STOCK DRAG EXHAUST ROLLERS The ZLX Pro Stock Drag Exhaust Series is based off of the popular XKX Exhaust Series but is quicker off the seat. CAMSHAFT TYPE
ZLX Pro Stock Drag Exh. Rated Duration @ .020" Tappet Lift Journal = R,M,K,A… MI 33.0 (15.8/17.2)
LOBE #
RATED DURATION
12823 12825 12827 12829 12831 12833 12835 12836 12837 12839
336 340 344 348 352 356 360 362 364 368
DURATION IN DEGREES @ .050
@ .200
303 307 311 315 319 323 327 329 331 335
225 229 233 236 240 244 248 251 253 257
LOBE LIFT
.570 .570 .570 .570 .570 .570 .570 .570 .570 .570
TAPPET LIFT @ TDC 106°
110°
.233 .244 .254 .264 .274 .284 .294 .298 .303 .312
.213 .223 .234 .244 .254 .264 .274 .278 .283 .293
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.026 1.026 1.026 1.026 1.026 1.026 1.026 1.026 1.026 1.026
1.083 1.083 1.083 1.083 1.083 1.083 1.083 1.083 1.083 1.083
1.140 1.140 1.140 1.140 1.140 1.140 1.140 1.140 1.140 1.140
NX PRO STOCK DRAG EXHAUST ROLLERS Like the XM series, the NX Pro Exhaust profiles are similar to the XKX but with higher acceleration and more area. These also have slightly shorter ramps that work very well with steeper valve seats. CAMSHAFT TYPE
LOBE #
RATED DURATION
NX Pro Stock Drag Exh. Rated Duration @ .020" Tappet Lift Journal = R,M,K,A… MI 31.2 (15.1/16.1)
2577 2578 2579 2580 2581
332 334 336 338 340
DURATION IN DEGREES @ .050
@ .200
301 303 305 307 309
224 226 228 230 232
LOBE LIFT
.562 .564 .566 .568 .570
TAPPET LIFT @ TDC 106°
110°
.230 .235 .240 .246 .251
.211 .215 .220 .226 .231
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.012 1.015 1.019 1.022 1.026
1.068 1.072 1.075 1.079 1.083
1.124 1.128 1.132 1.136 1.140
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
NXX ROLLERS
The NXX is similar to the XKX Drag Rollers but optimized for lower RPM applications. They work especially well in nitrous applications; the increased area under the curve (compared to most exhaust designs) reduces exhaust pumping losses. These asymmetric designs have lower opening acceleration to provide a wide power band and limit loading when opening against high cylinder pressures. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.7 1.8
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
11302 11303 11304 11305 11306 11307 11308 11309 11310 11311 11312 11313
323 325 327 329 331 333 335 337 339 341 343 345
292 294 296 298 300 302 304 306 308 210 312 314
213 215 217 219 221 223 225 227 229 231 233 235
.516 .518 .520 .522 .524 .526 .528 .530 .532 .534 .536 .538
.202 .207 .211 .216 .221 .225 .229 .235 .239 .244 .248 .253
.183 .188 .192 .197 .202 .206 .211 .216 .220 .225 .229 .234
.826 .829 .832 .835 .838 .842 .845 .848 .851 .854 .858 .861
.877 .881 .884 .887 .891 .894 .898 .901 .904 .908 .911 .915
.929 .932 .936 .940 .943 .947 .950 .954 .958 .961 .965 .968
11314 11315 11316 11317 11318
347 349 351 353 355
316 318 320 322 324
237 239 241 243 245
.540 .542 .544 .546 .548
.257 .262 .267 .272 .276
.239 .244 .248 .253 .258
.864 .867 .870 .874 .877
.918 .921 .925 .928 .932
.972 .976 .979 .983 .986
NXH Rated Duration @ .020" Tappet Lift Journal = R,M,K,A… MI 30.6 (14.8/15.8)
11340 11342 11344 11346 11348
341 345 349 353 357
310 314 318 322 326
231 235 239 243 247
.550 .554 .558 .562 .566
.247 .257 .266 .276 .285
.228 .237 .247 .257 .266
.880 .886 .893 .899 .906
.935 .942 .949 .955 .962
.990 .997 1.004 1.012 1.019
NXL Rated Duration @ Journal = M,L,K,A… MI 29.6 (14.3/15.3)
12338 12339 12349 11363 11364
355 357 359 361 363
325 327 329 331 333
250 252 254 256 258
.630 .630 .630 .630 .630
.302 .307 .312 .317 .322
.281 .286 .291 .296 .301
1.008 1.008 1.008 1.008 1.008
1.071 1.071 1.071 1.071 1.071
1.134 1.134 1.134 1.134 1.134
CAMSHAFT TYPE
NXX Rated Duration @ .020" Tappet Lift Journal = B,R,M,K… MI 30.8 (14.9/15.9)
LOBE LIFT
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SOLID ROLLER
SOLID ROLLER
CPX DRAG RACE ROLLERS The CPX is the newest exhaust companion to the CPI Drag Series from Competition Eliminator style engines trying to maximize engine speed. CAMSHAFT TYPE
CPX Rated Duration @ .020" Tappet Lift Journal = R,M MI 31.7 (15.4/16.3)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
14929 14931 14933
321 325 329
289 293 297
208 212 216
.503 .503 .503
.191 .200 .209
.173 .182 .191
.855 .855 .855
.905 .905 .905
.956 .956 .956
14907 14908 14909 14910 14911 14912 14913
317 319 321 323 325 327 329
285 287 289 291 293 295 297
204 206 208 210 212 214 216
.519 .521 .523 .525 .527 .529 .531
.183 .187 .192 .196 .201 .206 .210
.165 .169 .174 .178 .183 .187 .192
.882 .886 .889 .893 .896 .899 .903
.934 .938 .941 .945 .949 .952 .956
.986 .990 .994 .998 1.001 1.005 1.009
14947 14949 14951 14953
317 321 325 329
285 289 293 297
205 209 213 217
.555 .559 .563 .567
.183 .192 .202 .212
.165 .174 .183 .192
.944 .950 .957 .964
.999 1.006 1.013 1.021
1.055 1.062 1.070 1.077
LOBE LIFT
VOX PRO DRAG RACE ROLLERS The VOX Rollers are designed to work with the VOI intakes and are quicker than most exhaust lobes and could be used as an intake if needed. CAMSHAFT TYPE
LOBE #
RATED DURATION
VOX Pro Rated Duration @ .020" Tappet Lift MI 31.1 (15.3/15.8)MI 30.8 (14.9/15.9)
11173
DURATION IN DEGREES @ .050
@ .200
328
297
217
11175
332
301
11177
336
305
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
106°
110°
.529
.207
.189
.952
1.005
1.058
221
.531
.217
.198
.956
1.009
1.062
225
.533
.226
.207
.959
1.013
1.066
TSX PRO ROLLERS These are an excellent choice for 2.165" and smaller journal camshafts where very high lobe lift lobes can compromise the base circle diameter, core strength and stability under high loads. These have shorter seat timing than older Fuel/Blown ALC lobes but should be very good in their place if run with tighter lash. CAMSHAFT TYPE
TPX Pro Rated Duration @ .020" Tappet Lift Journal = R,M… MI 32.7 (15.7/17.0)
LOBE #
RATED DURATION
11145 11147 11149 11151 11153 11155 11157
330 334 338 342 346 350 354
DURATION IN DEGREES @ .050
@ .200
297 301 305 309 313 317 321
216 220 224 228 232 236 240
LOBE LIFT
.525 .527 .529 .531 .533 .535 .537
TAPPET LIFT @ TDC 106°
110°
.209 .218 .228 .237 .246 .256 .265
.190 .199 .209 .218 .227 .237 .246
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.893 .896 .899 .903 .906 .910 .913
.945 .949 .952 .956 .959 .963 .967
.998 1.001 1.005 1.009 1.013 1.017 1.020
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
PRX PLX PRO STOCK DRAG ROLLERS
The PRX and PLX are great baseline Pro Stock exhaust style drag race roller lobes with excellent area under the curve and require less valve relief than lobes with similar ramp quickness and area. CAMSHAFT TYPE
PRX Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = R,M,K,A… MI 31.2 (14.9/16.3)
PLX Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 30.3 (14.4/16.9)
LOBE #
RATED DURATION
12731 12732 12733 12735 12736 12437 12438 12439 12440 12441 12442 12443 12444 12445 12446 12447 12448 12449 12450 12451
305 307 309 313 315 317 319 321 323 325 327 329 331 333 335 337 339 341 343 345
12455 12456 12457 12458 12459 12460 12461 12462 12463 12264 12265
327 329 331 333 335 337 339 341 343 345 347
DURATION IN DEGREES @ .050
@ .200
274 276 278 282 284 286 288 290 292 294 296 298 300 302 304 306 308 310 312 314
197 199 201 205 207 209 211 213 215 217 219 221 223 225 227 229 231 233 235 237
@ .050
@ .200
297 299 301 303 305 307 309 311 313 315 317
223 225 227 229 231 233 235 237 239 241 243
LOBE LIFT
.540 .542 .544 .548 .550 .552 .554 .556 .558 .560 .562 .564 .566 .568 .570 .572 .574 .576 .578 .580 .608 .610 .612 .614 .616 .618 .620 .622 .624 .626 .628
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.75 1.85 1.95
106°
110°
.164 .169 .174 .183 .188 .193 .198 .203 .208 .213 .218 .223 .228 .234 .239 .244 .249 .254 .259 .264
.145 .150 .155 .164 .169 .173 .178 .183 .188 .193 .198 .203 .208 .213 .218 .223 .228 .233 .239 .244
.945 .949 .952 .959 .963 .966 .970 .973 .977 .980 .984 .987 .991 .994 .998 1.001 1.005 1.008 1.012 1.015
.999 1.003 1.006 1.014 1.018 1.021 1.025 1.029 1.032 1.036 1.040 1.043 1.047 1.051 1.055 1.058 1.062 1.066 1.069 1.073
1.053 1.057 1.061 1.069 1.073 1.076 1.080 1.084 1.088 1.092 1.096 1.100 1.104 1.108 1.112 1.115 1.119 1.123 1.127 1.131
106°
110°
1.6
1.7
1.8
.231 .237 .253 .248 .253 .259 .265 .270 .276 .281 .287
.209 .215 .231 .226 .231 .237 .242 .248 .253 .259 .264
.973 .976 .979 .982 .986 .989 .992 .995 .998 1.002 1.005
1.034 1.037 1.040 1.044 1.047 1.051 1.054 1.057 1.061 1.064 1.068
1.094 1.098 1.102 1.105 1.109 1.112 1.116 1.120 1.123 1.127 1.130
PRZ PRO STOCK DRAG ROLLERS Like lower PLX but could achieve similar motion with lower rocker ratios or achieve more lift, and acceleration if used with the same ratio. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
PRZ Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 30.1 (14.2/15.9)
12470
334
304
230
.596
.249
.228
1.013
1.073
1.132
12471
336
306
232
.598
.255
.233
1.017
1.076
1.136
12472
338
308
234
.600
.260
.238
1.020
1.080
1.140
LOBE LIFT
SOLID ROLLER
SOLID ROLLER
PVX PRO STOCK DRAG ROLLERS Like PLX but with some offset to increase PTV clearance by about .006" at the tappet on the exhaust. CAMSHAFT TYPE
LOBE #
RATED DURATION
PVX Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 29.0 (13.9/15.1)
12776 12778
DURATION IN DEGREES @ .050
@ .200
328
299
226
332
303
230
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.60 1.70 1.80
106°
110°
.610
.231
.209
.976
1.037
1.098
.614
.242
.220
.982
1.044
1.105
SPX PRO STOCK DRAG ROLLERS The SPX exhaust series is simmilar to the XJX, NX and NXX while optimized to work extremely well with the SPH and SPI Intake Series. CAMSHAFT TYPE
SPX Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = R,M,K,A… MI 35.8 (17.6/18.2)
LOBE #
RATED DURATION
12221 12222 12223 12224 12225 12226 12227 12228 12229
328 330 332 334 336 338 340 342 344
DURATION IN DEGREES @ .050
@ .200
292 294 296 298 300 302 304 306 308
211 213 215 217 219 221 223 225 227
LOBE LIFT
.555 .557 .559 .561 .563 .565 .567 .569 .571
TAPPET LIFT @ TDC 106°
110°
.199 .204 .209 .214 .219 .224 .229 .234 .239
.180 .185 .189 .194 .199 .204 .209 .214 .219
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
.999 1.003 1.006 1.010 1.013 1.017 1.021 1.024 1.028
1.055 1.058 1.062 1.066 1.070 1.074 1.077 1.081 1.085
1.110 1.114 1.118 1.122 1.126 1.130 1.134 1.138 1.142
XCM PRO STOCK DRAG ROLLERS The XCM exhaust series is simmilar to the SPX except faster with more lift, area and acceleration. CAMSHAFT TYPE
LOBE #
RATED DURATION
XCM Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 35.0 (17.2/17.8)
12398
DURATION IN DEGREES @ .050
@ .200
341
306
228
12402
343
308
12403
345
310
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
106°
110°
.601
.242
.221
1.082
1.142
1.202
230
.603
.248
.226
1.085
1.146
1.206
232
.605
.253
.231
1.089
1.150
1.210
XNR ROLLERS New exhaust profile like PRX but with almost no ramp. CAMSHAFT TYPE
LOBE #
RATED DURATION
XNR Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 30.5 (14.9/15.6)
12804 12805 12806 12807 12808
331 333 335 337 339
DURATION IN DEGREES @ .050
@ .200
300 302 304 306 308
223 225 227 229 231
LOBE LIFT
.588 .590 .592 .594 .596
TAPPET LIFT @ TDC 106°
110°
.229 .234 .240 .245 .250
.208 .214 .219 .224 .229
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
1.000 1.003 1.006 1.010 1.013
1.058 1.062 1.066 1.069 1.073
1.117 1.121 1.125 1.129 1.132
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
SXZ PRO STOCK DRAG ROLLERS
The SXZ series is our experiment with a fast opening, slower closing, high accleration exhaust series. These are designed to dealay the exhaust opening for increased torque while opening very quickly to minimize exhaust pumping losses. May be very sensitive to headers and collector configuration. CAMSHAFT TYPE
LOBE #
RATED DURATION
SXZ Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 28.5 (13.8/14.7)
12795
DURATION IN DEGREES @ .050
@ .200
333
305
232
12796
335
307
12797
337
309
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
106°
110°
.577
.251
.230
1.039
1.096
1.154
234
.579
.256
.235
1.042
1.100
1.158
236
.581
.261
.241
1.046
1.104
1.162
XRX PRO STOCK DRAG ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
XRX Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 30.8 (15.0/15.8)
2383
DURATION IN DEGREES @ .050
@ .200
331
300
224
2384
333
302
2369
335
304
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
106°
110°
.565
.231
.211
.961
1.017
1.074
226
.567
.237
.216
.964
1.021
1.077
228
.569
.242
.221
.967
1.024
1.081
PVS PRO STOCK DRAG EXHAUST ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
PVS Pro Stock Drag Exh. Rated Duration @ .020" Tappet Lift MI 33.8 (16.4/17.4)
12474 12475 12467 12586 12587
334 336 338 340 342
DURATION IN DEGREES @ .050
@ .200
300 302 304 306 308
220 222 224 226 228
LOBE LIFT
.560 .562 .564 .566 .568
TAPPET LIFT @ TDC 106°
110°
.219 .224 .229 .234 .239
.200 .204 .209 .214 .219
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.75 1.85 1.95
.980 .984 .987 .991 .994
1.036 1.040 1.043 1.047 1.051
1.092 1.096 1.100 1.104 1.108
ZZX PRO STOCK DRAG EXHAUST ROLLERS The ZZX Exhaust lobes have a special ramp offset to give slightly more piston to valve clearance while otherwise behaving very much like the fast ramp PZN series. CAMSHAFT TYPE
LOBE #
RATED DURATION
ZZX Pro Stock Drag Exh. Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 27.8 (13.6/14.2)
12951 12952 12953 12954 12955
326 328 330 332 334
DURATION IN DEGREES @ .050
@ .200
298 300 302 304 306
226 228 230 232 234
LOBE LIFT
.576 .578 .580 .582 .584
TAPPET LIFT @ TDC 106°
110°
.234 .239 .245 .250 .255
.212 .217 .222 .228 .234
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.75 1.85 1.95
1.008 1.012 1.015 1.019 1.022
1.066 1.069 1.073 1.077 1.080
1.123 1.127 1.131 1.135 1.139
SOLID ROLLER
SOLID ROLLER
PZN PZJ PYJ PRO STOCK DRAG ROLLERS The PZN, PZJ and PYJ quicker ramp Pro Stock Exhaust designs have proven themselves as an upgrade over the older XJX & XKX style designs in steep seat angle applications. The PZNs are the fastest and most aggressive, while the PZJ and PYJ lobes are smoother and better at high engine speed. CAMSHAFT TYPE
PZN Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 28.6 (13.8/14.8)
PZJ Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 29.1 (14.3/14.8)
PYJ Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = M,K,A… MI 29.7 (14.4/15.3)
LOBE #
RATED DURATION
12538 12539 12541 12542 12544 12545 12546 12547 12548 12549 12551
DURATION IN DEGREES @ .050
@ .200
320 322 324 326 328 330 332 334 336 338 340
291 293 295 297 299 301 303 305 307 309 311
218 220 222 224 226 228 230 232 234 236 238
12590
336
307
12605 12606 12596 12607 12619 12620 12621 12629
328 330 331 332 334 336 338 340
12611 12623 12624 12625 12626
329 331 333 335 337
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.75 1.85 1.95
106°
110°
.561 .563 .565 .567 .569 .571 .573 .575 .577 .579 .581
.214 .219 .224 .230 .235 .240 .245 .251 .256 .261 .266
.193 .198 .203 .209 .214 .219 .224 .229 .235 .240 .245
.982 .985 .989 .992 .996 .999 1.003 1.006 1.010 1.013 1.017
1.038 1.042 1.045 1.049 1.053 1.056 1.060 1.064 1.067 1.071 1.075
1.094 1.098 1.102 1.106 1.110 1.113 1.117 1.121 1.125 1.129 1.133
234
.595
.258
.237
1.041
1.101
1.160
299 301 302 303 305 307 309 311
223 225 226 227 229 231 233 235
.569 .571 .572 .573 .575 .577 .579 .581
.227 .232 .235 .238 .242 .248 .253 .259
.206 .212 .214 .217 .222 .227 .232 .238
.996 .999 1.001 1.003 1.006 1.010 1.013 1.017
1.053 1.056 1.058 1.060 1.064 1.067 1.071 1.075
1.110 1.113 1.115 1.117 1.121 1.125 1.129 1.133
299 301 303 305 307
223 225 227 229 231
.569 .571 .573 .575 .577
.225 .230 .235 .241 .246
.205 .210 .215 .220 .225
.996 .999 1.003 1.006 1.010
1.053 1.056 1.060 1.064 1.067
1.110 1.113 1.117 1.121 1.125
DXP PRO STOCK DRAG ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
DXP Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 30.0 (14.5/15.5)
12114 12116 12117 12118
334 338 340 342
DURATION IN DEGREES @ .050
@ .200
304 308 310 312
228 232 234 236
LOBE LIFT
.566 .570 .572 .574
TAPPET LIFT @ TDC 106°
110°
.241 .251 .257 .262
.221 .231 .236 .241
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.7 1.8 1.9
.962 .969 .972 .976
1.019 1.026 1.030 1.033
1.075 1.083 1.087 1.091
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
XCH Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 28.4 (13.8/14.6)
11282
328
300
227
.562
.239
.218
1.012
1.068
1.124
11283
330
302
229
.564
.244
.223
1.015
1.072
1.128
11284
332
304
231
.566
.249
.229
1.019
1.075
1.132
LOBE LIFT
TXJ PRO STOCK DRAG ROLLERS CAMSHAFT TYPE
LOBE #
RATED DURATION
TXJ Pro Stock Drag Rated Duration @ .020" Tappet Lift MI 33.5 (16.3/17.2)
12072 12073 12074 12075 12076
330 332 334 336 338
DURATION IN DEGREES @ .050
@ .200
297 299 301 303 305
218 220 222 224 226
LOBE LIFT
.551 .553 .555 .556 .557
TAPPET LIFT @ TDC 106°
110°
.214 .219 .224 .229 .234
.194 .199 .204 .209 .214
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
.992 .995 .999 1.001 1.003
1.047 1.051 1.055 1.056 1.058
1.102 1.106 1.110 1.112 1.114
PNX PRO STOCK DRAG ROLLERS CAMSHAFT TYPE
PNX Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = MG,K,A… MI 32.1 (15.0/17.1)
LOBE #
RATED DURATION
12325 12313 12314 12315 12316 12317 12318
351 353 355 357 359 361 363
DURATION IN DEGREES @ .050
@ .200
319 321 323 325 327 329 331
241 243 245 247 249 251 253
LOBE LIFT
.595 .597 .599 .601 .603 .605 .607
TAPPET LIFT @ TDC 106°
110°
.276 .281 .286 .291 .296 .301 .306
.255 .260 .266 .271 .276 .281 .286
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
1.071 1.075 1.078 1.082 1.085 1.089 1.093
1.131 1.134 1.138 1.142 1.146 1.150 1.153
1.190 1.194 1.198 1.202 1.206 1.210 1.214
PQX PQD PRO STOCK DRAG ROLLERS DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.6 1.8 2.0
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
PQX Pro Stock Drag Rated Duration @ .020" Tappet Lift
11023 11026 11027 11028 11029
332 334 336 338 340
302 304 306 308 310
229 231 233 235 237
.626 .628 .630 .632 .634
.248 .253 .258 .265 .270
.225 .231 .236 .242 .248
1.002 1.005 1.008 1.011 1.014
1.127 1.130 1.134 1.138 1.141
1.252 1.256 1.260 1.264 1.268
11051
328
299
227
.628
.243
.221
1.005
1.130
1.256
11052
330
301
229
.630
.250
.226
1.008
1.134
1.260
11053
332
303
231
.632
.255
.232
1.011
1.138
1.264
Journal = MG, K, A... MI 30.2 (14.3/15.9) PQD Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = MG, K,A.. MI 28.7 (14.0/14.7)
LOBE LIFT
SOLID ROLLER
XCH PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
XMZ XJZ PRO MOD EXHAUST DRAG ROLLERS The XMZ and XJZ lobes are outstanding in Pro Mod type applications where one needs maximum area under the curve to remove spent gasses and reduce exhaust pumping losses. The XJZ lobes are just a bit smoother for higher RPM applications where spring life is a concern. CAMSHAFT TYPE
XMZ Pro Mod Exh. Rated Duration @ .020" Tappet Lift Journal = L,K,A… MI 27.7 (13.5/14.2)
XJZ Pro Mod. Exh. Rated Duration @ .020" Tappet Lift Journal = L,K,A… MI 29.5 (14.4/15.1)
LOBE #
RATED DURATION
12328 12329 12361 12362 12367 12368 12369
DURATION IN DEGREES @ .050
@ .200
349 351 353 355 357 359 361
321 323 325 327 329 331 333
250 252 254 256 258 260 263
12387 12388 12389 12401
357 359 361 365
329 331 333 337
14038 14039 14040 14042 14044
350 352 354 358 362
320 322 324 328 332
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.8 1.9 2.0
106°
110°
.627 .629 .631 .633 .635 .637 .639
.309 .315 .321 .327 .333 .337 .343
.287 .292 .299 .305 .310 .315 .321
1.129 1.132 1.136 1.139 1.143 1.147 1.150
1.191 1.195 1.199 1.203 1.207 1.210 1.214
1.254 1.258 1.262 1.266 1.270 1.274 1.278
259 261 263 267
.660 .662 .664 .668
.335 .340 .346 .358
.312 .317 .323 .334
1.188 1.192 1.195 1.202
1.254 1.258 1.262 1.269
1.320 1.324 1.328 1.336
246 248 250 254 258
.638 .640 .642 .644 .646
.292 .297 .303 .313 .324
.270 .275 .281 .291 .302
1.148 1.152 1.156 1.159 1.163
1.212 1.216 1.220 1.224 1.227
1.276 1.280 1.284 1.288 1.292
PXC PRO STOCK DRAG ROLLERS Lower ratio exhaust design for 70mm, 75mm or 78mm effective journal size cams and low (1.5:1 to 1.7) ratios. CAMSHAFT TYPE
LOBE #
RATED DURATION
PXC Pro Stock Drag Rated Duration @ .020" Tappet Lift Journal = A,C,O… MI 33.9 (16.3/17.6)
11090 11091 11092 11093 11094
348 350 352 354 356
DURATION IN DEGREES @ .050
@ .200
314 316 318 320 322
238 240 242 244 246
LOBE LIFT
.698 .700 .702 .704 .706
TAPPET LIFT @ TDC 106°
110°
.276 .282 .288 .294 .300
.252 .258 .264 .270 .276
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
1.047 1.050 1.053 1.056 1.059
1.117 1.120 1.123 1.126 1.130
1.187 1.190 1.193 1.197 1.200
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
SOLID ROLLER
UDR FUEL & ALC INTAKE ROLLERS
The UDR designs take advantage of our latest design techniques and provide higher lift and more area than older designs while improving stability for higher RPM operation, even with the Hemi style valve train geometry. Work extremely well in any application that needs excellent area and durability, especially those that cannot run as stiff or light of a valve train & rocker system as might be found in Pro Stock. CAMSHAFT TYPE
UDR Rollers Rated Duration @ .020" Tappet Lift Journal = B,R,M… MI 32.9 (16.2/16.7)
LOBE #
RATED DURATION
2067 2069 2068 2047 2073 2048 2074 2049 2075 2050 2076 2051 2077
306 308 310 312 314 316 318 320 322 324 326 328 330
DURATION IN DEGREES @ .050
@ .200
273 275 277 279 281 283 285 287 289 291 293 295 297
192 194 196 198 199 202 203 205 207 209 211 213 215
LOBE LIFT
.520 .521 .523 .525 .526 .526 .526 .526 .526 .526 .526 .526 .526
TAPPET LIFT @ TDC 106°
110°
.154 .158 .162 .167 .171 .176 .180 .185 .189 .194 .199 .203 .208
.137 .141 .145 .149 .153 .158 .162 .167 .171 .175 .180 .185 .189
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.68 1.73 1.78
.874 .875 .879 .882 .884 .884 .884 .884 .884 .884 .884 .884 .884
.900 .901 .905 .908 .910 .910 .910 .910 .910 .910 .910 .910 .910
.926 .927 .931 .935 .936 .936 .936 .936 .936 .936 .936 .936 .936
FDR FUEL & ALC INTAKE ROLLERS The FDR designs are similar to the UDR designs but have more lift and faster ramps. These are designed for slightly lower RPM than the UDR series but should be stable in most applications. For 2.124"+ journals and .800"+ roller wheels. CAMSHAFT TYPE
FDR Fuel & ALC Int. Rated Duration @ .020" Tappet Lift Journal = R,M… MI 32.4 (16.1/16.3)
LOBE #
RATED DURATION
2082 2083 2084 2085 2086 2094
319 323 327 331 333 335
DURATION IN DEGREES @ .050
@ .200
287 291 295 299 301 303
207 211 215 219 221 223
LOBE LIFT
.536 .536 .536 .536 .536 .536
TAPPET LIFT @ TDC 106°
110°
.187 .197 .206 .216 .221 .226
.169 .178 .187 .197 .202 .206
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.68 1.73 1.78
.900 .900 .900 .900 .900 .900
.927 .927 .927 .927 .927 .927
.954 .954 .954 .954 .954 .954
SOLID ROLLER
SOLID ROLLER
FCX FUEL & ALC EXHAUST ROLLERS The FCX designs are based on our popular XCX exhaust designs but have limited opening acceleration to accommodate the increased cylinder pressures seen at exhaust opening in these applications. These will work on the intake side but are optimized for the exhaust. For 2.124"+ journals and .800"+ roller wheels. CAMSHAFT TYPE
FCX Fuel Rollers Rated Duration @ .020" Tappet Lift Journal = B,R,M… MI 38.5 (19.0/19.5)
LOBE #
RATED DURATION
2171 2169 2172 2162 2163 2164 2165 2170 2166 2174 2167
316 320 322 324 328 332 336 338 340 342 344
DURATION IN DEGREES @ .050
@ .200
277 281 283 285 289 293 297 299 301 303 305
191 195 197 199 203 207 211 213 215 217 219
LOBE LIFT
.512 .512 .512 .512 .512 .512 .512 .512 .512 .512 .512
TAPPET LIFT @ TDC 106°
110°
.154 .163 .167 .171 .180 .189 .198 .202 .206 .211 .215
.138 .146 .150 .154 .162 .171 .180 .184 .188 .193 .197
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.68 1.73 1.78
.860 .860 .860 .860 .860 .860 .860 .860 .860 .860 .860
.886 .886 .886 .886 .886 .886 .886 .886 .886 .886 .886
.911 .911 .911 .911 .911 .911 .911 .911 .911 .911 .911
EF FUEL & ALC INTAKE ROLLERS These profiles are Top Fuel designs for use in modern professional drag race classes. CAMSHAFT TYPE
LOBE #
RATED DURATION
EF Fuel & ALC Int. Rated Duration @ .020" Tappet Lift Journal = B,R,M… MI 34.2 (15.5/18.7)
2096
DURATION IN DEGREES @ .050
@ .200
329
295
211
2097
329
295
2098
335
2099
335
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.68 1.73 1.78
106°
110°
.475
.198
.180
.798
.822
.846
212
.500
.200
.182
.840
.865
.890
301
217
.475
.210
.193
.798
.822
.846
301
218
.500
.213
.195
.840
.865
.890
FLI FLN FUEL INTAKE ROLLERS These profiles are Top Fuel designs for use in modern professional drag race classes. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.68 1.73 1.78
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
FLI Fuel Int. Rated Duration @ .020" Tappet Lift MI 33.2 (16.0/17.2)
2114
329
296
214
.513
.203
.185
.862
.887
.913
2115
333
300
218
.515
.212
.194
.865
.891
.917
2116
337
304
221
.517
.221
.202
.869
.894
.920
EFN Fuel Int. Rated Duration @ .020" Tappet Lift
2596
331
298
215
.477
.207
.190
.801
.825
.849
2598
335
302
219
.477
.215
.198
.801
.825
.849
LOBE LIFT
COMPCAMS.COM CAM HELP® 1.800.999.0853
SOLID ROLLER
These profiles are Top Fuel designs for use in modern professional drag race classes. CAMSHAFT TYPE
LOBE #
RATED DURATION
FLX Fuel Exh. Rated Duration @ .020" Tappet Lift Journal = B,R,M… MI 35.0 (16.7/18.3)
2138
DURATION IN DEGREES @ .050
@ .200
333
298
213
2139
337
302
2140
341
306
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.68 1.73 1.78
106°
110°
.510
.203
.186
.857
.882
.908
217
.512
.212
.195
.860
.886
.911
221
.514
.221
.203
.864
.889
.915
NFV TOP FUEL PRO DRAG ROLLERS (2012/2013) The FCX designs are based on our popular XCX exhaust designs but have limited opening acceleration to accommodate the increased cylinder pressures seen at exhaust opening in these applications. These will work on the intake side but are optimized for the exhaust. For 2.124"+ journals and .800"+ roller wheels. DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.70 1.75 1.80
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
NFV Pro Rated Duration @ .020" Tappet Lift Journal = B,R,M… MI 32.3 (15.8/16.5)
14154 14155 14156 14157 14158
332 333 334 335 336
300 301 302 303 304
217 218 219 220 221
.500 .501 .502 .503 .504
.213 .216 .218 .220 .222
.196 .198 .200 .203 .205
.850 .852 .853 .855 .857
.875 .877 .879 .880 .882
.900 .902 .904 .905 .907
NFV Pro Higher Lift Rated Duration @ .020" Tappet Lift Journal = R,M… MI 32.3 (15.8/16.5)
14164 14165 14166 14167 14168
332 333 334 335 336
300 301 302 303 304
217 218 219 220 221
.514 .515 .516 .517 .518
.214 .216 .218 .221 .223
.197 .199 .201 .203 .205
.874 .876 .877 .879 .881
.900 .901 .903 .905 .907
.925 .927 .929 .931 .932
LOBE LIFT
CHRYSLER SPECIAL RACE ROLLERS These designs are for Chryslers only. The "Special Roller" offers a variety of lobes used primarily on 383-426W-426 Hemis and 440 motors in Super Street, Super Stock, Pro Stock and Alcohol burning Hemis. CAMSHAFT TYPE
Chrysler Specials Rated Duration @ .020" Tappet Lift Journal = S,B,R,M… MI 38.0 (19.0/19.0)
LOBE #
RATED DURATION
1661 1625 1634 4248 4083 1642 1635 1491 1649 1650 1662
314-1 320-8 327-2 324-8 333-1 330-9 327-3 331-3 335-4 336-3 342-4
DURATION IN DEGREES @ .050
@ .200
274 282 286 286 292 292 290 294 294 298 304
190 202 198 204 202 208 206 208 212 214 217
LOBE LIFT
.480 .500 .500 .500 .500 .500 .485 .485 .485 .500 .500
TAPPET LIFT @ TDC 106°
110°
.148 .179 .175 .186 .174 .193 .186 .191 .199 .204 .214
.132 .161 .159 .167 .168 .176 .169 .174 .183 .186 .197
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
.720 .750 .750 .750 .750 .750 .728 .728 .728 .750 .750
.768 .800 .800 .800 .800 .800 .776 .776 .776 .800 .800
.816 .850 .850 .850 .850 .850 .825 .825 .825 .850 .850
SOLID ROLLER
FLX FUEL EXHAUST ROLLERS
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
FORD MODULAR XTREME ENERGY™ 4.6 & 5.4L − SOHC OR DOHC These profiles are developed for use in Ford Modular engines. The .550" versions are more aggressive off the seat and have more area. The .500" lift versions will work in ‘98 and earlier SOHC engines without cylinder head modifications. They also work very well in DOCH applications that have been modified to accept .500" valve lift. The .425" versions are best suited DOHC applications with ‘99 or later PI cylinder heads and can be used with stock valve train. Valve durations and lift given for stock valve, lifter and rocker arm geometry. CAMSHAFT TYPE
XE F4.6 Rated Duration @ .006" Valve Lift Valve Lift Given w/ Stock Geometry
DURATION IN DEGREES @ .050 @ .200
LOBE #
RATED DURATION
LOBE LIFT
VALVE LIFT
9240 9241 9242 9243 9244 9245
254 258 262 266 270 274
218 222 226 230 234 238
164 171 177 179 182 186
.236 .236 .236 .236 .236 .236
.425 .425 .425 .425 .425 .425
9320 9321 9322 9323 9324 9325 9326 9327
256 260 264 268 272 276 280 286
220 224 228 232 236 240 244 250
165 168 172 176 179 183 167 192
.250 .250 .250 .250 .250 .250 .250 .250
.450 .450 .450 .450 .450 .450 .450 .450
9341 9342 9343 9344 9345 9346
258 262 266 270 274 278
222 226 230 234 238 242
169 172 176 180 183 186
.263 .263 .263 .263 .263 .263
.475 .475 .475 .475 .475 .475
9253 9254 9255 9256 19359 9257 9258 19360 9259 19361 9260 9261 19362 9262 9263 19363 9264 9265
248 254 260 262 266 268 270 272 274 276 278 280 281 284 286 288 290 292
210 216 222 224 228 230 232 234 236 238 240 242 244 246 248 250 252 254
159 164 170 171 175 177 179 180 182 184 186 187 189 191 192 194 195 197
.274 .274 .274 .274 .274 .274 .274 .274 .274 .274 .274 .274 .274 .274 .274 .274 .274 .274
.500 .500 .500 .500 .500 .500 .500 .500 .500 .500 .500 .500 .500 .500 .500 .500 .500 .500
9274 9275 9276
261 265 269
226 230 234
176 180 184
.289 .289 .289
.525 .525 .525 Continued on page 143
COMPCAMS.COM CAM HELP® 1.800.999.0853
OVERHEAD CAM
CAMSHAFT TYPE
DURATION IN DEGREES @ .050 @ .200
LOBE #
RATED DURATION
9277 9278 9279 9280
273 277 281 285
238 242 246 250
9266 9267 9268
262 266 270
9269 9270 9271 9272 9273
274 278 282 286 290
CAMSHAFT TYPE
LOBE #
RATED DURATION
SE Rated Duration @ .006" Valve Lift
9291 9292 9293 9294 9295 9296 9297 19286 19307 19287 19288 19289 19305 19291 19292 19306 19295 19296 19301 19297 19339 19340 19293 19294 9298 19337 19338 9299
268 276 282 288 294 296 300 271 273 275 279 283 286 290 294 299 260 268 272 276 282 286 290 294 298 302 306 308
XE F4.6 Rated Duration @ .006" Valve Lift Valve Lift Given w/ Stock Geometry
LOBE LIFT
VALVE LIFT
188 191 195 199
.289 .289 .289 .289
.525 .525 .525 .525
226 230 234
177 181 185
.300 .300 .300
.550 .550 .550
238 242 246 250 254
189 192 196 199 203
.300 .300 .300 .300 .300
.550 .550 .550 .550 .550
LOBE LIFT
VALVE LIFT
.217 .217 .217 .217 .217 .217 .217 .225 .225 .225 .225 .225 .225 .225 .225 .225 .230 .230 .230 .230 .230 .230 .230 .230 .230 .230 .230 .230
.387 .387 .387 .387 .387 .387 .387 .402 .402 .402 .402 .402 .402 .402 .402 .402 .412 .412 .412 .412 .412 .412 .412 .412 .412 .412 .412 .412
MODULAR STOCKER DURATION IN DEGREES @ .050 @ .200
235 243 249 255 261 263 267 237 239 241 245 249 253 257 261 265 227 235 239 243 249 253 257 261 265 269 273 275
178 185 191 198 204 206 210 182 183 185 189 193 196 200 205 209 170 178 182 186 193 197 201 205 209 212 216 219
Continued on page 144
OVERHEAD CAM PIVOTING FOLLOWER
FORD MODULAR XTREME ENERGY™ 4.6 & 5.4L − SOHC OR DOHC Continued
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
MODULAR STOCKER Continued CAMSHAFT TYPE
SE Rated Duration @ .006" Valve Lift
DURATION IN DEGREES @ .050 @ .200
LOBE #
RATED DURATION
LOBE LIFT
VALVE LIFT
19316 19317 19318 19319 19298 19299 19300 9300 9283 9284 9303 9301 9219 9304 9302 9306 9307 9371 9373
274 276 278 282 260 268 276 268 270 272 274 278 282 284 288 292 294 298 302
241 243 245 249 227 235 243 235 237 239 241 245 249 251 255 259 261 265 269
186 188 190 194 172 180 188 182 285 187 189 192 196 198 202 206 208 212 216
.235 .235 .235 .235 .244 .244 .244 .262 .262 .262 .262 .262 .262 .262 .262 .262 .262 .262 .262
.422 .422 .422 .422 .438 .438 .438 .472 .472 .472 .472 .472 .472 .472 .472 .472 .472 .472 .472
9310 9311 9312 9313 9314 9315
286 288 290 292 296 300
253 255 257 259 263 267
201 203 205 207 211 215
.282 .282 .282 .282 .282 .282
.510 .510 .510 .510 .510 .510
19350 19351 19352 19353 19354 19355 19356
274 278 282 284 286 290 284
241 245 249 251 253 257 261
190 194 198 200 202 206 209
.290 .290 .290 .290 .290 .290 .290
.525 .525 .525 .525 .525 .525 .525
19314 19315
296 300
263 267
212 215
.302 .302
.550 .550
LOBE LIFT
VALVE LIFT
MHS MODULAR STOCKER DURATION IN DEGREES @ .050 @ .200
CAMSHAFT TYPE
LOBE #
RATED DURATION
MHS Rated Duration @ .006" Valve Lift
19235 19236 19237 19238
290 294 298 302
248 252 256 260
195 197 201 205
.276 .276 .276 .276
.500 .500 .500 .500
19285
302
260
206
.302
.550
COMPCAMS.COM CAM HELP® 1.800.999.0853
OVERHEAD CAM
The MH Series designs are for Ford Modular 2V & 4V race type applications. These can be used either with a standard hydraulic lash adjuster or a solid adjuster conversion. In solid applications, the recommended lash is .010" to .016" at the valve tip or .006" to .010" in between the cam and roller follower. These are stable at higher engine speeds than the standard street lobe profiles but do not have long street style closing ramps for idle noise reduction. Cylinder head modifications are highly recommended to take advantage of the additional lift. CAMSHAFT TYPE
XE F4.6 .940" BCR Rated Duration @ .006" Valve Lift
XE F4.6 .920" BCR Rated Duration @ .006" Valve Lift
DURATION IN DEGREES @ .006 @ .050 @ .200
VALVE LIFT @ TDC 106° 110°
CHECKING DURATION @ .050/.750 Wheel
LOBE LIFT
.154 .167 .180
242 246 250
.300 .300 .300
.105 .117 .129 .142 .155 .168 .182
.083 .094 .105 .117 .129 .142 .155
218 222 226 230 234 238 242
.320 .320 .320 .320 .320 .320 .320
211 218
.195 .221
.168 .194
246 254
.320 .320
236 240 244
183 187 191
.105 .117 .129
.083 .094 .105
218 222 226
.341 .341 .341
248 252 256 260 264 268 272
195 199 203 207 211 215 219
.142 .155 .169 .183 .197 .210 .224
.117 .129 .142 .156 .169 .183 .196
230 234 238 242 246 250 254
.341 .341 .341 .341 .341 .341 .341
LOBE #
GROSS VALVE LIFT
19367 19368 19369
260 264 268
.545 .545 .545
302 306 310
206 210 214
.180 .193 .206
19262 19263 19264 19265 19266 19267 19268
.585 .585 .585 .585 .585 .585 .585
278 282 286 290 294 298 302
236 240 244 248 252 256 260
183 187 191 195 199 203 207
19269 19370
.585 .585
306 314
264 272
19272 19273 19274
.625 .625 .625
278 282 286
19275 19276 19277 19278 19279 19280 19380
.625 .625 .625 .625 .625 .625 .625
290 294 298 302 306 310 314
MS 2V & 4V MODULAR RACE The MS series designs are for Ford Modular 2V & 4V race type applications. These are even one step smoother than the MH series for applications that regularly exceed 8500 RPM. CAMSHAFT TYPE
MS XE F4.6 .930" BCR .006" Valve Lift Rated Duration @
DURATION IN DEGREES @ .006 @ .050 @ .200
VALVE LIFT @ TDC 106° 110°
LOBE #
GROSS VALVE LIFT
19390 19391
256 260
.550 .550
300 304
201 204
.164 .176
19341 19342 19343 19344 19345 19334 19346
.600 .600 .600 .600 .600 .600 .600
292 294 296 298 300 302 304
248 250 252 254 256 258 260
193 195 197 199 201 203 205
.139 .145 .151 .158 .165 .171 .178
CHECKING DURATION @ .050/.750 Wheel
LOBE LIFT
.139 .151
237 241
.302 .302
.115 .121 .127 .133 .139 .145 .152
229 231 233 235 237 239 241
.328 .328 .328 .328 .328 .328 .328
OVERHEAD CAM PIVOTING FOLLOWER
MH 2V & 4V MODULAR RACE
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
MZ 2V & 4V MODULAR RACE The MZ series designs are for Ford Modular 2V & 4V race type applications and are smoother than the MH and MS profiles. They should be more stable at RPM than the older 9337 or 9329 style lobes would be at higher lift. CAMSHAFT TYPE
LOBE #
GROSS VALVE LIFT
MZ F4.6 Rated Duration @ .006" Valve Lift .900" BCR
19464 19465 19466
238 242 246
DURATION IN DEGREES @ .006 @ .050 @ .200
.500 .500 .500
286 290 294
179 183 186
VALVE LIFT @ TDC 106° 110°
.108 .118 .128
.088 .098 .107
CHECKING DURATION @ .050/.750 Wheel
LOBE LIFT
218 222 226
.276 .276 .276
FORD MODULAR XTREME ENERGY™ 4.6 & 5.4L − 3V These profiles are developed for use in 3V Ford Modular engines. Note that the effective rocker ratio is much higher in this application than in the 2V or 4V. The base circles are also smaller, hence the other profiles are not recommended in 3V applications. Also, these 3V intake profiles are quicker than the exhaust due to the much lighter valves. CAMSHAFT TYPE
LOBE #
RATED DURATION
XE 3V Mod Int. Rated Duration @ .006" Valve Lift
9234 9236 9237 9238 9239
DURATION IN DEGREES
VALVE LIFT LOBE LIFT
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.05 2.1
@ .006
@ .200
253 261 265 269 273
214 222 226 230 234
161 169 173 177 181
.480 .490 .500 .510 .520
.236 .241 .246 .251 .255
.472 .482 .492 .502 .510
.484 .494 .504 .515 .523
.496 .506 .517 .527 .536
XE 3V Mod Exh. Rated Duration @ .006" Valve Lift
9246 9247 9248 9251 9252
270 274 278 282 286
227 231 235 239 243
169 173 177 181 185
.470 .475 .480 .485 .490
.234 .235 .237 .240 .243
.468 .470 .474 .480 .486
.480 .482 .486 .492 .498
.491 .494 .498 .504 .510
XE 3V LL Mod Int. Rated Duration @ .006" Valve Lift
19202 19203 19204 19205 19207 19209
253 257 261 265 273 281
214 218 222 226 234 242
160 163 167 171 179 186
.450 .450 .450 .450 .450 .450
.222 .222 .222 .222 .222 .222
.444 .444 .444 .444 .444 .444
.455 .455 .455 .455 .455 .455
.466 .466 .466 .466 .466 .466
XE 3V LL Mod Exh. Rated Duration @ .006" Valve Lift
19213 19214 19215 19216
270 274 278 282
227 231 235 239
169 173 176 180
.450 .450 .450 .450
.223 .223 .223 .223
.446 .446 .446 .446
.457 .457 .457 .457
.468 .468 .468 .468
19221 19223 19225
298 306 314
246 254 262
186 193 201
.450 .450 .450
.223 .223 .223
.446 .446 .446
.457 .457 .457
.468 .468 .468
19194
264
228
176
.500
.246
.492
.504
.517
XE 3V LL THMP-X Rated Duration @ .006" Valve Lift Faster Intake
Continued on page 147
COMPCAMS.COM CAM HELP® 1.800.999.0853
OVERHEAD CAM
DURATION IN DEGREES
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.05 2.1
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006
@ .200
XE 3V TVK Int. Rated Duration @ .006" Valve Lift
19240 19242 19244 19246
256 264 272 280
221 229 237 245
171 179 187 195
.523 .535 .547 .559
.256 .262 .267 .273
.512 .524 .534 .546
.525 .537 .547 .560
.538 .550 .561 .573
XE 3V TVK Exh. Rated Duration @ .006" Valve Lift
19251 19253 19254 19255 19256 19258
267 275 279 283 287 295
228 236 240 244 248 256
176 184 188 192 195 203
.538 .550 .555 .560 .560 .560
.265 .271 .273 .275 .275 .275
.530 .542 .546 .550 .550 .550
.543 .556 .560 .564 .564 .564
.557 .569 .573 .578 .578 .578
VALVE LIFT LOBE LIFT
FORD MODULAR RSS RACE − 3V DURATION IN DEGREES
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.05 2.1
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006
@ .200
XE 3V RSS Int. Solid Rated Duration @ .010" Valve Lift
19400
298
260
204
.650
.316
.632
.648
.664
19402
306
268
212
.650
.316
.632
.648
.664
19404
314
276
220
.650
.316
.632
.648
.664
19409
317
272
213
.700
.340
.680
.697
.714
19411
325
280
221
.700
.340
.680
.697
.714
19413
333
288
229
.700
.340
.680
.697
.714
XE 3V RSS Exh. Solid Rated Duration @ .010" Valve Lift
VALVE LIFT LOBE LIFT
FORD COYOTE NSRI & NSRX STREET − 4V DURATION IN DEGREES
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.05 2.1
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006
@ .200
NSRI Int. Rated Duration @ .004" Valve Lift
19554 19556 19558
267 275 283
220 228 236
167 175 183
.492 .492 .492
.244 .244 .244
.488 .488 .488
.500 .500 .500
.512 .512 .512
NSRX Exh. Rated Duration @ .004" Valve Lift
19564 19565 19566 19567 19568 19569
276 280 284 288 292 296
223 227 231 235 239 243
167 171 175 179 183 186
.453 .453 .453 .453 .453 .453
.225 .225 .225 .225 .225 .225
.450 .450 .450 .450 .450 .450
.461 .461 .461 .461 .461 .461
.473 .473 .473 .473 .473 .473
Thumpr Exh. Rated Duration @ .004" Valve Lift
19766 19767 19768 19769
307 311 315 319
234 238 242 246
175 179 183 187
.470 .470 .470 .470
.234 .234 .234 .234
.467 .467 .467 .467
.479 .479 .479 .479
.490 .490 .490 .490
VALVE LIFT LOBE LIFT
OVERHEAD CAM PIVOTING FOLLOWER
FORD MODULAR XTREME ENERGY™ 4.6 & 5.4L − 3V Continued
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
FORD COYOTE CY-R CAMSHAFT TYPE
LOBE #
RATED DURATION
CY-R Int. Rated Duration @ .004" Valve Lift
19820 19821 19822 19823 19824 19825
CY-R Exh. Rated Duration @ .004" Valve Lift
19830 19831 19832 19833 19834 19835 19836
DURATION IN DEGREES
VALVE LIFT LOBE LIFT
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.05 2.1
@ .006
@ .200
265 269 273 277 281 285
223 227 231 235 239 243
173 177 180 184 188 192
.516 .516 .516 .516 .516 .516
.2552 .2552 .2552 .2552 .2552 .2552
.510 .510 .510 .510 .510 .510
.523 .523 .523 .523 .523 .523
.536 .536 .536 .536 .536 .536
273 277 281 285 289 293 297
225 229 233 237 241 245 249
174 178 181 185 189 193 197
.514 .514 .514 .514 .514 .514 .514
.2542 .2542 .2542 .2542 .2542 .2542 .2542
.508 .508 .508 .508 .508 .508 .508
.521 .521 .521 .521 .521 .521 .521
.534 .534 .534 .534 .534 .534 .534
FORD COYOTE CRI & CRX RACE − 4V CAMSHAFT TYPE
CRI Int. Rated Duration @ .004" Valve Lift
LOBE #
RATED DURATION
19575 19576 19577 19578 19579 19580 19581 19605 19606 19607 19582 19583 19584 19585 19586 19587 19588 19589 19590 19591
DURATION IN DEGREES
VALVE LIFT LOBE LIFT
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.05 2.1
@ .006
@ .200
278 282 286 290 294 298 302 306 310 314
232 236 240 244 248 252 256 260 264 268
180 184 188 191 195 199 203 206 210 214
.512 .512 .512 .512 .512 .512 .512 .512 .512 .512
.2532 .2532 .2532 .2532 .2532 .2532 .2532 .2532 .2532 .2532
.506 .506 .506 .506 .506 .506 .506 .506 .506 .506
.519 .519 .519 .519 .519 .519 .519 .519 .519 .519
.532 .532 .532 .532 .532 .532 .532 .532 .532 .532
278 282 286 290 294 298 302 306 310 314
232 236 240 244 248 252 256 260 264 268
181 185 189 193 197 201 205 209 213 216
.561 .565 .571 .576 .576 .576 .576 .576 .576 .576
.2760 .2779 .2806 .2829 .2829 .2829 .2829 .2829 .2829 .2829
.552 .556 .561 .566 .566 .566 .566 .566 .566 .566
.566 .570 .575 .580 .580 .580 .580 .580 .580 .580
.580 .584 .589 .594 .594 .594 .594 .594 .594 .594
Continued on page 149
COMPCAMS.COM CAM HELP® 1.800.999.0853
OVERHEAD CAM
CAMSHAFT TYPE
LOBE #
RATED DURATION
CRX Exh. Rated Duration @ .004" Valve Lift
19592 19593 19594 19595 19596 19597 19598 19599 19650 19651 19652
CRI Int. Stocker Rated Duration @ .004" Valve Lift
CRX Exh. Stocker Rated Duration @ .004" Valve Lift
DURATION IN DEGREES
VALVE LIFT LOBE LIFT
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 2.0 2.05 2.1
@ .006
@ .200
287 291 295 299 303 307 311 315 319 323 327
234 238 242 246 250 254 258 262 266 270 274
179 183 187 191 194 198 202 206 210 214 217
.502 .507 .512 .512 .512 .512 .512 .512 .512 .512 .512
.2486 .2509 .2532 .2532 .2532 .2532 .2532 .2532 .2532 .2532 .2532
.497 .502 .506 .506 .506 .506 .506 .506 .506 .506 .506
.510 .514 .519 .519 .519 .519 .519 .519 .519 .519 .519
.522 .527 .532 .532 .532 .532 .532 .532 .532 .532 .532
19608 19609 19610 19611
290 294 298 302
244 248 252 256
190 194 198 202
.470 .470 .470 .470
.2335 .2335 .2335 .2335
.467 .467 .467 .467
.479 .479 .479 .479
.490 .490 .490 .490
19615 19616 19617 19618
299 303 307 311
246 250 254 258
190 194 198 202
.470 .470 .470 .470
.2335 .2335 .2335 .2335
.467 .467 .467 .467
.479 .479 .479 .479
.490 .490 .490 .490
FORD 2000-2300 OHC STREET CAMSHAFT TYPE
LOBE #
RATED DURATION @ .010
DURATION IN DEGREES @ .050
LOBE LIFT
VALVE LIFT
Street Hydraulic Valve Lift Given w/ Stock Geometry
8022 8023 8024 8025 8026
240 252 260 268 280
200 210 218 226 236
.240 .246 .252 .264 .277
.400 .406 .420 .440 .460
Street Solid .010" Lash
8006 8007 8008
272 294 300
242 264 278
.282 .292 .350
.445 .463 .580
OVERHEAD CAM PIVOTING FOLLOWER
FORD COYOTE CRI & CRX RACE − 4V Continued
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
FORD 2000-2300 OHC RACE These profiles are designed for use in Ford 2000-2300 OHC (Pinto) applications with factory style sliding followers. Cams must be nitrided after grinding and will require extra time. Valve durations and lift given for stock valve, lifter and rocker geometry. CAMSHAFT TYPE
LOBE #
RATED DURATION
DURATION IN DEGREES @ .050
LOBE LIFT
VALVE LIFT
Race Base Solid .010" Lash Valve Lift Given w/ Stock Geometry
8064 8066 8098 8096 8090
270 280 280 288 300
238 248 248 256 268
.280 .300 .270 .300 .345
.460 .500 .460 .500 .575
Race .480" Lift Rule Solid .010" Lash
8312 8314 8316
288 292 296
260 264 268
.284 .284 .284
.480 .480 .480
Race Base Solid .010" Lash
8304 8306 8325 8327
294 300 314 320
272 278 282 288
.297 .297 .297 .297
.516 .516 .516 .516
FORD 2000-2300 OHC RACE ROLLER FOLLOWER These profiles are designed for use in Ford 2000-2300 OHC (Pinto) applications with roller followers. CAMSHAFT TYPE
LOBE # Intake-Exhaust
RATED DURATION
DURATION IN DEGREES @ .050
LOBE LIFT
VALVE LIFT
Hi-Tech™ Roller Race .010" Lash
8374-8375 8376-8377 8380-8381 8382-8383 8384-8385 8386-8387
279 283 291 295 299 303
246 250 258 262 266 270
.344 .344 .344 .344 .344 .344
.620 .620 .620 .620 .620 .620
.355 .360 .363 .363
.645 .655 .660 .660
Intake
RT Style Roller Race .010" Lash
8360 8362 8364 8366
@ .050
286 290 294 298
258 262 266 270
COMPCAMS.COM CAM HELP® 1.800.999.0853
OVERHEAD CAM
These profile are designed at the valve for a .500" base circle radius Ford 2300 with roller followers. Use an "I" suffix for intake profiles and an "E" suffix for exhaust profiles. CAMSHAFT TYPE
2300 FP Roller Race Rated Duration @ .020" Valve Lift
2300 FPS Roller Race Rated Duration @ .020" Valve Lift
LOBE #
RATED DURATION
8410 8411 8412 8413 8414
DURATION IN DEGREES
VALVE LIFT
LOBE LIFT
LOBE CHECK DURATION @ .050
@ .050
@ .200
313 317 321 325 329
284 288 292 296 300
221 225 229 233 237
.658 .664 .670 .676 .682
.360 .363 .366 .369 .372
261 265 269 273 277
8420 8421 8422 8423 8424
313 317 321 325 329
284 288 292 296 300
221 225 229 233 237
.710 .710 .710 .710 .710
.387 .387 .387 .387 .387
261 265 269 273 277
8552 8553 8554 8555 8556
322 326 330 334 338
291 295 299 303 307
226 230 234 238 242
.745 .745 .745 .745 .745
.405 .405 .405 .405 .405
267 271 275 279 283
OVERHEAD CAM PIVOTING FOLLOWER
FORD 2300 − FP ROLLER
GM ECOTEC − XTREME ENERGY™ HYDRAULIC ROLLER OHC These profiles are designed for use in GM ECOTEC applications. Valve durations and lift given for stock valve, lifter and rocker arm geometry. CAMSHAFT TYPE
LOBE #
RATED DURATION
Int. Street Hydraulic Rated Duration @ .006" Valve Lift
8754 8756 8758 8760 8762
Exh. Street Hydraulic Rated Duration @ .006" Valve Lift
8755 8757 8759 8761 8763
DURATION IN DEGREES
VALVE LIFT LOBE LIFT
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.685 1.7 1.715
@ .050
@ .200
240 246 252 258 264
198 204 210 216 222
141 146 151 157 164
.251 .251 .251 .260 .270
.423 .423 .423 .440 .456
.423 .423 .423 .438 .455
.427 .427 .427 .442 .459
.430 .430 .430 .446 .463
244 250 256 262 268
200 206 212 218 224
140 145 150 156 163
.248 .248 .248 .258 .268
.419 .419 .419 .436 .453
.418 .418 .418 .435 .452
.422 .422 .422 .439 .456
.425 .425 .425 .442 .460
Continued on page 152
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
GM ECOTEC − XTREME ENERGY™ HYDRAULIC ROLLER OHC Continued
These profiles are designed for use in GM ECOTEC applications. Valve durations and lift given for stock valve, lifter and rocker arm geometry. DURATION IN DEGREES
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.685 1.7 1.715
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
Race Int. Rated Duration @ .006" Valve Lift
8766 8768 8770 8776 8778 8780 8786 8698 8699 8692
292 296 303 303 307 310 318 322 326 326
247 255 259 260 264 267 275 279 283 283
186 195 198 200 204 207 215 219 223 223
.294 .325 .300 .350 .350 .350 .355 .355 .355 .370
.499 .550 .511 .591 .591 .591 .600 .600 .600 .625
.495 .548 .506 .590 .590 .590 .598 .598 .598 .623
.500 .553 .510 .595 .595 .595 .604 .604 .604 .629
.504 .557 .515 .600 .600 .600 .609 .609 .609 .635
Race Exh. Rated Duration @ .006" Valve Lift
8767 8696 8771 8777 8781 8791 8792 8793
294 301 306 310 314 320 324 328
249 255 261 264 268 276 280 284
187 194 199 203 208 215 219 222
.294 .325 .300 .330 .350 .355 .355 .355
.499 .550 .512 .565 .591 .600 .600 .600
.495 .548 .506 .556 .590 .598 .598 .598
.500 .553 .510 .561 .595 .604 .604 .604
.504 .557 .515 .566 .600 .609 .609 .609
VALVE LIFT LOBE LIFT
MITSUBISHI 4G63 − XTREME ENERGY™ HYDRAULIC ROLLER OHC These profiles are designed for use in Mitsubishi 4G63 applications. Valve durations and lift given for stock valve, lifter and rocker arm geometry. CAMSHAFT TYPE
LOBE #
RATED DURATION
DURATION IN DEGREES @ .050
LOBE LIFT
VALVE LIFT
INTAKE/EXHAUST
Mitsubishi 4G63 Street Hydraulic Rated Duration @ .004" Valve Lift
8735 8736 8737 8738 8739 8740 8741 8742 8745 8746
251 250 259 258 259 258 266 266 256 257
204 204 212 212 212 212 220 220 210 210
.237 .229 .239 .232 .239 .232 .242 .234 .255 .239
.407 .391 .411 .395 .411 .395 .415 .399 .434 .411
Int. Exh. Int. Exh. Int. Exh. Int. Exh. Int. Exh.
COMPCAMS.COM CAM HELP® 1.800.999.0853
OVERHEAD CAM
These profiles are designed for use in Nissan L16, 18, 20B applications. Valve durations and lift given for stock valve and rocker arm geometry. CAMSHAFT TYPE
LOBE #
RATED DURATION @ .010
DURATION IN DEGREES @ .050
LOBE LIFT
VALVE LIFT
Street
8250 8255 8251 8252 8253 8254
240 252 260 268 280 292
194 204 214 222 236 246
.285 .293 .301 .308 .330 .344
.400 .410 .420 .430 .460 .480
Race
8260 8261 8262
294 300 306
258 264 270
.395 .400 .405
.573 .580 .587
TOYOTA 20R-22RE These profiles are designed for use in Toyota 20R-22RE applications. Valve durations and lift given for stock valve and rocker arm geometry. CAMSHAFT TYPE
LOBE # INTAKE−EXHAUST
RATED DURATION @ .010
DURATION IN DEGREES @ .050
LOBE LIFT
VALVE LIFT
Street
8216-8217 8218-8219 8202-8203 8204-8205 8206-8207
247 255 263 271 279
206 214 222 230 238
.282 .288 .295 .301 .321
.419 .429 .440 .450 .484
8232-8233 8234-8235 8236-8237
317 321 325
275 279 283
.308 .305 .305
.460 .457 .457
8240-8241 8242-8243
321 325
279 283
.328 .328
.505 .505
Race
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OVERHEAD CAM PIVOTING FOLLOWER
NISSAN L16, 18, 20B
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
SOH OHC ROLLERS FOR FORD 427 SOHC DURATION IN DEGREES
TAPPET LIFT @ TDC 106° 110°
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.685 1.7 1.715
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .050
@ .200
427 SOHC Lobes Std. Lift − Street Rated Duration @ .015" Tappet Lift
8430 8432 8434 8436
278 286 294 302
244 252 260 268
178 185 193 200
.464 .470 .476 .482
.111 .130 .150 .170
.092 .111 .130 .150
.580 .588 .595 .603
.592 .599 .607 .615
.603 .611 .619 .627
8440
310
276
211
.538
.196
.174
.673
.686
.699
8442
318
284
218
.542
.216
.194
.678
.691
.705
8444
326
292
226
.546
.234
.213
.683
.696
.710
427 SOHC Lobes High Lift − Race Rated Duration @ .015" Tappet Lift
LOBE LIFT
VM OHC ROLLERS FOR FORD 427 SOHC The VM series Ford 427 SOHC profiles are designed first "at the valve" with optimized motion for the Right Intake and Left Exhaust "A" pairs and also the left intake and right exhaust "B" pairs. This valve motion is then converted back to a lobe checking file for manufacturing and inspection. By "reverse engineering" the camshaft backwards from the desired valve motion, more area under the curve along with better stability and improved motion symmetry from intake to exhaust and from bank to bank is achieved. Use an "RI" prefix for the right intake, an "RE" perfect for the right exhaust, an "LI" prefix for the left intake and an "LE" prefix for the left exhaust all before the desire ID number when ordering individual cams. CAMSHAFT TYPE
Ford 427 SOHC Std. Lift − Street Rated Duration @ .020" Valve Lift
Ford 427 SOHC High Lift − Race Rated Duration @ .020" Valve Lift
LOBE #
RATED DURATION
DURATION IN DEGREES @ .050 @ .200
VALVE LIFT
DURATION VALVE LIFT @ TDC CHECK TAPPET 106° 110° @ .050
CHECK LIFT TAPPET
LIFT W/ FIXED RATIO 1.27
8560
288
264
207
.543
.184
.160
252
.431
.547
8564 8566 8568
288 296 304
264 272 280
208 216 224
.592 .598 .604
.188 .214 .240
.162 .188 .214
252 260 268
.472 .477 .482
.599 .606 .612
8590 8592 8594 8596 8598
284 292 300 308 316
261 269 277 285 293
206 214 222 230 238
.696 .702 .708 .714 .720
.180 .210 .240 .270 .300
.150 .180 .210 .240 .270
249 257 265 273 281
.559 .564 .569 .574 .579
.710 .716 .723 .729 .735
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OVERHEAD CAM
CAMSHAFT TYPE
LOBE #
RATED DURATION @ .010"
VW or Direct 1" Tappet Direct − Bucket
6800 6801 6802 6803 6804 6805 6806 6807 6808
216 226 236 246 256 266 276 286 296
DURATION IN DEGREES @ .050" @ .200"
180 190 200 210 220 230 240 250 260
95 109 122 134 145 153 162 169 179
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
.260 .280 .300 .320 .340 .360 .380 .400 .420
1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000
.640 .620 .600 .580 .560 .540 .520 .500 .480
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
.365 .360 .320 .360 .360
1.080 1.020 .900 1.000 .980
.550 .550 .500 .500 .500
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
.410 .420 .430
1.100 1.100 1.100
.650 .650 .650
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
OHC − MULTIPURPOSE BUCKET CAMSHAFT TYPE
LOBE #
RATED DURATION @ .010"
OHC Direct − Bucket
9048 9042 9045 9044 9046
248 256 274 264 273
CAMSHAFT TYPE
LOBE #
RATED DURATION @ .010"
Quad 4 Direct − Bucket
9013 9014 9015
260 266 272
DURATION IN DEGREES @ .050" @ .200"
215 222 228 230 238
146 150 144 158 162
QUAD 4 − BUCKET DURATION IN DEGREES @ .050" @ .200"
226 232 238
160 166 172
OHZ − STREET/STRIP BUCKET CAMSHAFT TYPE
LOBE #
RATED DURATION @ .006"
DURATION IN DEGREES @ .050" @ .200"
OHZ Direct − Bucket .400 Lift
9090 9091 9092 9093 9086 9087
258 262 268 274 280 286
214 218 224 230 236 242
149 153 158 163 168 173
.400 .400 .400 .400 .400 .400
1.180 1.180 1.180 1.180 1.180 1.180
.680 .660 .640 .620 .600 .600
OHZ Direct − Bucket .320-.380 Lift
9094 9095 9109 9096 9108
264 272 280 280 284
220 228 235 236 239
153 160 150 166 163
.380 .380 .320 .380 .360
1.180 1.180 1.025 1.180 1.025
.650 .630 .500 .610 .500
OVERHEAD CAM DIRECT ACTING
VW OR DIRECT 1" TAPPET
OVERHEAD CAM
OVERHEAD CAM DIRECT ACTING
OHRX − HIGH RPM BUCKET LOBE #
RATED DURATION @ .006"
DURATION IN DEGREES @ .050" @ .200"
9072 9073 9074
294 300 306
260 266 272
9102 9103
279 285
9104 9105
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
199 204 210
.480 .490 .500
1.200 1.200 1.200
.530 .530 .530
245 251
186 192
.510 .510
1.325 1.325
.650 .650
283 289
249 255
192 198
.550 .550
1.458 1.458
.690 .690
9122 9124
294 306
260 272
198 210
.500 .530
1.200 1.200
.580 .580
9141
336
274
208
.490
1.200
.530
CAMSHAFT TYPE
LOBE #
RATED DURATION @ .006"
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
OHRXV Direct − Bucket
9116 9117 9118
306 310 314
.553 .560 .565
1.200 1.200 1.200
.530 .530 .530
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
.495 .500 .505 .510
1.200 1.200 1.200 1.200
.530 .530 .530 .530
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
.475 .490 .505
1.180 1.180 1.180
.530 .530 .530
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
.440 .452 .464
1.150 1.150 1.150
.500 .500 .500
CAMSHAFT TYPE
OHRX Int. Direct − Bucket
OHRX Exh.
OHRXV − HIGH LIFT DURATION IN DEGREES @ .050" @ .200"
273 277 281
212 216 220
XCOH − EXHAUST HIGH LIFT CAMSHAFT TYPE
LOBE #
RATED DURATION @ .006"
XCOH Direct − Bucket
9132 9133 9134 9135
317 321 325 329
DURATION IN DEGREES @ .050" @ .200"
270 274 278 282
205 209 213 217
OHRXA − STREET INTAKE CAMSHAFT TYPE
LOBE #
RATED DURATION @ .006"
OHRXA Int. Direct − Bucket
9126 9127 9128
285 291 297
DURATION IN DEGREES @ .050" @ .200"
251 257 263
187 194 200
OHRXA − STREET EXHAUST CAMSHAFT TYPE
LOBE #
RATED DURATION @ .006"
OHRXA Exh. Direct − Bucket
9146 9147 9148
295 301 307
DURATION IN DEGREES @ .050" @ .200"
246 252 258
180 186 193
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OVERHEAD CAM
OVERHEAD CAM DIRECT ACTING
PCI INTAKE − LIMITED RPM OHC 33MM BUCKET
Fast Intake OHC Lift Rule & RPM Limited − 33mm Bucket, 0.738" BCR. Can be used with Hydraulic Bucket and zero lash or with Solid Bucket and .005" to .010" lash. CAMSHAFT TYPE
LOBE #
RATED DURATION @ .006
@ .010
@ .020
@ .050
@ .200
PCI 33 Int. Rated Duration @ .006" Tappet Lift
19701 19702 19703
293 297 301
282 286 290
267 271 275
248 252 256
192 196 200
DURATION IN DEGREES
LOBE LIFT
.498 .498 .498
TAPPET LIFT @ TDC 106°
110°
114°
.144 .155 .166
.122 .133 .144
.100 .111 .122
PCX EXHAUST − LIMITED RPM OHC 33MM BUCKET
Exhaust OHC Lift Rule & RPM Limited − 33mm Bucket, 0.738" BCR. Can be used with Hydraulic Bucket and zero lash or with Solid Bucket and .005" to .010" lash. CAMSHAFT TYPE
LOBE #
RATED DURATION @ .006
@ .010
@ .020
@ .050
@ .200
PCX 33 Exh. Rated Duration @ .006" Tappet Lift
19704 19705 19706 19707 19708
290 294 298 302 306
280 284 288 292 296
264 268 272 276 280
242 246 250 254 258
185 189 193 197 201
DURATION IN DEGREES
LOBE LIFT
.498 .498 .498 .498 .498
TAPPET LIFT @ TDC 106°
110°
114°
.126 .137 .148 .159 .170
.104 .115 .126 .137 .148
.083 .093 .104 .115 .126
PDI INTAKE − LIMITED RPM OHC 33MM BUCKET Fast Intake OHC Lift Rule & RPM Limited − 31.5mm Bucket, 0.748" BCR. Can be used with Hydraulic Bucket and zero lash or with Solid Bucket and .005" to .010" lash. CAMSHAFT TYPE
LOBE #
RATED DURATION @ .006
@ .010
@ .020
@ .050
@ .200
PDI 31.5 Int. Rated Duration @ .006" Tappet Lift
19712 19713 19714
284 288 292
274 278 282
261 265 269
243 247 251
186 190 194
DURATION IN DEGREES
LOBE LIFT
.497 .497 .497
TAPPET LIFT @ TDC 106°
110°
.129 .140 .150
.108 .118 .129
PDX EXHAUST − LIMITED RPM OHC 31.5MM BUCKET Exhaust OHC Lift Rule & RPM Limited − 31.5mm Bucket, 0.748" BCR. Can be used with Hydraulic Bucket and zero lash or with Solid Bucket and .005" to .010" lash. CAMSHAFT TYPE
LOBE #
RATED DURATION @ .006
@ .010
@ .020
@ .050
@ .200
PDX 31.5 Exh. Rated Duration @ .006" Tappet Lift
19717 19718 19719
293 297 301
279 283 287
263 267 271
244 248 252
187 191 195
DURATION IN DEGREES
LOBE LIFT
.496 .496 .496
TAPPET LIFT @ TDC 106°
110°
.132 .142 .153
.110 .121 .132
OVERHEAD CAM
OVERHEAD CAM DIRECT ACTING
OVH INTAKE 38 TO 40MM BUCKET These are based on the OHRX Series and maximized for .500" + BCR and 38mm or larger buckets. CAMSHAFT TYPE
LOBE #
RATED DURATION
OVH 38+ Int. Rated Duration @ .020" Tappet Lift
9418 9419 9420
296 300 304
DURATION IN DEGREES @ .050
@ .200
276 280 284
223 227 231
TAPPET LIFT @ TDC
LOBE LIFT
.645 .660 .675
106°
110°
114°
.238 .251 .264
.212 .225 .238
.187 .200 .212
XCO EXHAUST 35-40MM BUCKET These are based on an exhaust series that is similar to the OVH intakes but with softer ramps. Will work with 35mm or larger buckets. CAMSHAFT TYPE
XCO 35+ Exh. Rated Duration @ .020" Tappet Lift
LOBE #
RATED DURATION
@ .050
@ .200
106°
110°
114°
19425
290
262
201
.550
.169
.146
.124
9423 9424 9425
304 308 312
276 280 284
216 220 224
.600 .610 .620
.211 .223 .236
.188 .200 .212
.164 .176 .188
DURATION IN DEGREES
TAPPET LIFT @ TDC
LOBE LIFT
XCO INTAKE 38-40MM BUCKET These lobes are similar to the XCO 35 Series but optimized for 38mm or larger buckets and have more lift. CAMSHAFT TYPE
LOBE #
RATED DURATION
XCO 38+ Int. Rated Duration @ .020" Tappet Lift
9444 9445 9446
310 314 318
DURATION IN DEGREES @ .050
@ .200
282 286 290
224 228 232
TAPPET LIFT @ TDC
LOBE LIFT
.640 .650 .660
106°
110°
114°
.238 .251 .264
.212 .225 .238
.187 .200 .212
THUMPR™ FLATHEAD FORD − DIRECT SOLID 1" TAPPET (CCW ROTATION) CAMSHAFT TYPE
LOBE #
RATED DURATION
Intake 1" Tappet Direct
19520 19522 19524
Exhaust 1" Tappet Direct
19531 19533 19535
Can also be used in VW applications.
DURATION IN DEGREES
LOBE LIFT
MINIMUM TAPPET O.D.
MINIMUM BCR
@ .050
@ .200
267 275 283
227 235 243
160 169 177
.354 .368 .382
1.000 1.000 1.000
.540 .526 .512
299 307 315
241 249 257
151 160 168
.350 .364 .378
1.000 1.000 1.000
.544 .530 .516
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OVERHEAD CAM
OVERHEAD CAM DIRECT ACTING
FC SOLIDS
The FC Solid designs can be used in many smaller solid lifter applications including OHV, flathead direct and OHC direct applications. Requires a minimum .780" tappet face diameter. CAMSHAFT TYPE
FC Rated Duration @ .020" Tappet Lift .780" Min. Dia. .012" Lash
LOBE #
RATED DURATION
6703 6704 6705 6706 6707 6708 6709 6710 6711 6712 6713 6714 6715 6716 6717 6718 6730 6720 6724
DURATION IN DEGREES @ .050
@ .200
FC244-1 FC248-1 FC252-1 FC258-1 FC262-1 FC266-1 FC270-1 FC274-1 FC278-1 FC282-1 FC286-1 FC290-1 FC294-1
212 216 220 225 229 232 236 240 244 248 252 256 260
102 110 118 122 127 130 135 139 143 146 152 154 160
FC298-1 FC302-1 FC306-1 FC314-1 FC314-2 FC324-2
264 268 272 280 280 290
165 169 173 163 180 188
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH ROCKER ARM RATIO 1.5 1.6 1.7
106°
110°
.250 .260 .270 .280 .285 .290 .300 .300 .310 .310 .320 .320 .330
.050 .056 .061 .067 .073 .079 .084 .091 .097 .102 .112 .116 .124
.040 .045 .050 .056 .062 .067 .073 .079 .085 .090 .099 .103 .112
.375 .390 .405 .420 .428 .435 .450 .450 .465 .465 .480 .480 .495
.400 .416 .432 .448 .456 .464 .480 .480 .496 .496 .512 .512 .528
.425 .442 .459 .476 .485 .493 .510 .510 .527 .527 .544 .544 .561
.330 .340 .340 .300 .350 .350
.131 .136 .144 .142 .157 .171
.118 .123 .131 .131 .144 .159
.495 .510 .510 .450 .525 .525
.528 .544 .544 .480 .560 .560
.561 .578 .578 .510 .595 .595
LOBE INDEX
LOBE INDEX LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
1027 1028 1030 1046 1108 1110 1111 1112 1152 1176 1180 1181 1183 1185 1186 1187 1188 1189 1227 1239 1240 1245 1260 1261 1263 1268 1269 1271 1272 1273 1278 1285 1286 1287 1288 1289 1291 1293 1295 1301 1302 1306 1309 1320 1372 1373 1374 1375 1376 1377
108 108 108 108 113 113 113 113 111 108 108 114 114 114 108 114 108 114 113 113 108 113 107 111 111 107 111 107 107 111 107 111 107 111 107 111 111 111 107 108 108 110 108 110 115 115 115 115 115 115
1382 1383 1384 1385 1386 1388 1392 1393 1394 1395 1398 1399 1400 1402 1403 1416 1417 1418 1419 1427 1429 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1473 1474 1476 1477 1478 1479 1480 1481 1484 1485 1486 1487 1489 1490 1491 1492 1493 1494 1495
116 116 116 116 116 116 74 77 74 77 115 115 115 115 115 92 92 92 92 92 92 73 75 73 73 73 73 73 73 74 74 73 71 71 88 74 74 77 88 110 110 74 110 110 108 141 74 75 111 110
1496 1498 1514 1515 1519 1520 1521 1522 1523 1524 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1554 1562 1563 1564 1565 1567 1568 1569 1570 1571 1572 1576 1577 1578 1579 1580 1581 1582 1585 1589 1597 1601 1603
71 71 87 87 95 95 95 95 95 95 115 115 95 95 95 95 95 95 95 95 95 95 95 95 95 95 95 95 129 129 129 129 118 118 129 118 129 118 95 115 115 115 115 115 115 115 95 73 113 73
1606 1607 1609 1610 1611 1612 1613 1614 1615 1617 1619 1620 1621 1623 1625 1626 1627 1628 1630 1631 1632 1633 1634 1635 1636 1638 1639 1640 1641 1642 1643 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1677 1680
73 73 73 74 74 74 74 74 74 74 74 74 74 74 141 74 74 74 74 74 74 74 141 141 74 74 74 74 74 141 74 74 75 75 141 141 75 75 75 75 75 75 74 74 74 77 141 141 73 112
1681 1682 1683 1684 1685 1686 1687 1688 1695 1699 1718 1719 1722 1723 1724 1726 1727 1728 1729 1730 1734 1735 1736 1737 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1751 1752 1753 1758 1759 1760 1761 1763 1764 1765 1766 1767 1768 1769 1770
113 113 113 113 113 113 113 113 128 113 109 109 110 128 110 110 110 110 110 110 128 128 110 110 110 110 110 110 110 110 110 110 110 110 110 112 112 112 112 112 112 112 112 111 111 111 111 111 111 109
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LOBE INDEX
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
1771 1772 1773 1775 1777 1785 1789 1790 1792 1794 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1819 1820 1823 1824 1825 1826 1827 1828 1829 1831 1832 1833 1834 1835 1836 1837 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850
109 112 112 129 112 112 129 129 129 129 109 109 109 109 109 109 109 109 109 109 109 109 109 109 129 109 129 109 109 109 109 109 109 129 129 129 129 129 109 109 109 109 109 109 109 109 129 129 129 111
1851 1858 1859 1860 1861 1862 1864 1866 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1884 1886 1893 1901 1903 1912 1914 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1936 1937 1939 1943 1945 1960 1962 1964 1966 1968 1970
111 129 129 111 111 111 111 112 112 112 112 112 112 112 112 112 112 112 112 112 112 112 112 112 115 115 114 114 114 114 114 114 114 114 114 114 114 114 114 115 115 116 116 116 111 111 111 112 112 112
1971 1975 1976 1977 1978 1979 1980 1981 1982 1986 1987 1988 1989 1990 1991 1992 1993 1995 1996 1997 1998 1999 2008 2037 2039 2041 2042 2043 2044 2045 2047 2048 2049 2050 2051 2054 2055 2057 2058 2067 2068 2069 2073 2074 2075 2076 2077 2078 2079 2082
116 116 116 116 116 116 116 116 117 117 117 117 117 117 117 117 117 128 128 128 128 128 113 118 118 118 118 118 118 118 139 139 139 139 139 112 130 118 118 139 139 139 139 139 139 139 139 130 130 139
2083 2084 2085 2086 2094 2095 2096 2097 2098 2099 2114 2115 2116 2119 2121 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2138 2139 2140 2162 2163 2164 2165 2166 2167 2169 2170 2171 2172 2174 2182 2184 2195 2196 2198 2199 2201
139 139 139 139 139 118 140 140 140 140 140 140 140 71 71 71 34 34 34 34 34 34 34 34 34 34 34 34 34 141 141 141 140 140 140 140 140 140 140 140 140 140 140 118 118 97 97 97 97 97
2202 2203 2208 2209 2210 2214 2215 2217 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2265 2267 2273 2274
97 97 89 89 89 96 96 88 88 88 88 88 88 88 89 89 89 89 89 89 89 89 89 89 96 96 96 96 96 96 96 96 96 96 97 97 97 97 97 97 97 97 97 97 97 97 96 96 96 96
LOBE INDEX
LOBE #
LOBE INDEX
LOBE INDEX LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
2275 2276 2277 2278 2279 2280 2281 2282 2284 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2311 2314 2315 2318 2369 2380 2381 2383 2384 2385 2386 2387 2390 2391 2392 2393 2397 2399 2419 2420 2430 2486 2488 2489 2490 2492 2494 2507 2508 2509 2510
96 96 96 96 96 96 96 96 96 118 118 118 118 118 118 118 118 79 118 79 79 79 79 135 96 96 135 135 119 96 117 117 117 117 117 96 117 119 119 119 81 81 82 82 82 82 87 87 87 87
2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2531 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2551 2555 2557 2559 2560 2570 2571 2577 2578 2579 2580 2581 2582 2583 2586 2587 2588 2589 2590
87 87 87 87 87 87 87 87 87 87 102 102 102 102 102 102 102 102 102 102 91 91 91 91 91 91 91 91 91 91 102 102 102 102 102 102 98 98 130 130 130 130 130 98 98 119 119 119 119 98
2591 2596 2598 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2724 2725 2726 2727 2728 2730 2731 2735 2876 2877 2878 2879 2881 2882 2885 2906 2907 2908 2909 2950 2952 2953 2954 2958 2962 2963 2964 2965 2978 2979 2980 2981 2982
98 140 140 98 98 93 93 93 93 93 93 93 93 93 93 93 93 128 128 128 128 128 98 98 79 96 96 96 96 85 85 85 92 92 92 92 84 84 84 84 84 85 85 85 85 85 85 85 85 85
2983 2984 2985 2989 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3024 3026 3028 3030 3031 3033 3034 3035 3036 3037 3038 3039 3040 3041 3043 3045 3047 3050 3051 3052 3053 3056 3058 3100 3101
85 85 85 85 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 20 20 20 20 23 20 23 23 24 24 24 24 24 24 24 20 20 20 18 18 18 18 20 20 18 18
3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3150 3151 3152 3160 3161 3162 3163 3164 3168 3170 3171 3188 3190 3192 3194 3196 3207 3282 3283 3284 3285 3286 3287 3288 3289 3295 3296 3297
18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 21 21 21 21 21 76 41 41 41 41 41 41 41 41 41 41 41
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LOBE INDEX
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3322 3323 3324 3326 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3354 3355 3356
41 41 21 21 21 22 21 21 22 22 22 22 21 21 21 21 21 21 21 21 21 21 21 21 22 22 42 42 42 42 42 42 41 41 41 41 41 21 21 21 21 21 21 21 22 22 22 27 27 27
3357 3358 3359 3362 3363 3364 3370 3371 3372 3373 3374 3375 3376 3377 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3404 3405 3410 3411 3414 3415 3447 3473 3474 3475 3479 3496 3497 3498 3511 3528 3532 3534 3536
27 27 27 27 27 27 28 28 28 28 28 28 28 28 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 28 28 22 22 28 28 28 28 28 41 41 41 18 20 20 20 20
3538 3541 3543 3545 3547 3552 3554 3556 3561 3563 3565 3567 3576 3577 3578 3579 3580 3582 3584 3585 3586 3587 3588 3589 3590 3591 3592 3594 3595 3596 3597 3604 3605 3606 3608 3609 3610 3611 3611 3612 3613 3614 3615 3628 3630 3632 3633 3634 3635 3636
20 20 20 20 20 20 20 20 46 20 20 20 46 46 46 46 46 46 46 46 46 19 46 19 19 19 19 19 19 19 19 19 19 19 19 19 22 19 22 22 22 22 22 22 22 22 22 22 22 22
3637 3638 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729
22 22 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 31 31 31 31 31 31 31 31 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 31 31 31 31 31 31 31 31 31 31
3730 3731 3732 3733 3734 3735 3750 3751 3752 3753 3754 3755 3756 3757 3766 3767 3809 3810 3816 3817 3818 3819 3822 3823 3824 3825 3826 3827 3832 3833 3834 3835 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4013 4015 4016 4017 4018 4019 4020 4022
31 31 31 31 31 30 30 30 30 30 30 30 30 30 30 30 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 73 76 71 75 76 75 76 75 76 76 76 76 76 76 76 75 76 76
LOBE INDEX
LOBE #
LOBE INDEX
LOBE INDEX LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4034 4035 4045 4046 4047 4048 4049 4050 4051 4052 4053 4055 4056 4057 4058 4059 4062 4063 4064 4065 4066 4067 4068 4070 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4085 4087 4091 4107 4118 4119
75 76 74 76 75 76 75 76 76 76 73 74 75 75 75 75 75 110 110 111 111 110 111 111 75 74 74 108 110 77 74 110 108 77 110 77 76 76 76 76 76 76 76 141 108 74 108 108 108 76
4121 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134 4135 4136 4137 4138 4139 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4160 4162 4163 4164 4165 4166 4167 4168 4169 4175 4176 4178 4180 4181 4182 4183 4184 4185 4186 4196
81 81 81 81 81 81 81 81 81 81 81 81 81 81 81 81 81 81 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 86 86 86 86 86 86 86 86 86 86 86
4198 4199 4205 4206 4207 4208 4209 4210 4211 4213 4214 4216 4217 4220 4221 4224 4240 4241 4242 4243 4244 4245 4247 4248 4252 4253 4254 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4276 4277 4278 4279 4283 4284 4285
86 86 88 88 88 88 88 75 75 88 88 88 88 71 71 75 88 88 74 88 74 88 110 141 88 88 88 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79 79
4286 4287 4293 4294 4295 4296 4301 4302 4303 4304 4305 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4321 4327 4328 4329 4340 4341 4345 4346 4347 4348 4349 4358 4359 4361 4362 4363 4364 4365 4366 4367 4368 4369 4370 4371 4372 4373 4374
79 79 79 79 79 79 83 83 83 83 83 83 83 83 83 83 83 83 83 83 83 83 83 85 85 85 85 83 83 81 81 81 81 81 86 86 86 86 86 86 86 86 86 86 86 86 86 86 86 86
4375 4376 4377 4378 4379 4380 4382 4383 4384 4385 4386 4387 4388 4389 4390 4391 4402 4404 4405 4406 4407 4408 4409 4416 4417 4418 4419 4421 4422 4423 4424 4427 4428 4429 4430 4431 4432 4433 4436 4438 4445 4447 4448 4449 4450 4451 4452 4453 4454 4455
86 86 86 86 86 86 81 81 81 81 81 81 81 82 82 82 84 84 84 84 84 84 84 84 84 84 84 92 92 92 92 82 82 82 82 82 82 82 82 82 82 82 82 82 82 82 82 82 92 92
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4459 4480 4482 4483 4484 4485 4486 4572 4573 4574 4575 4576 4600 4601 4609 4610 4611 4612 4613 4614 4615 4616 4617 4618 4619 4620 4621 4622 4623 4624 4625 4627 4628 4639 4640 4641 4642 4643 4682 4683 4684 4685 4686 4687 4784 4785 4788 4789 4793 4814
92 77 77 77 77 77 77 91 91 92 92 92 88 88 91 91 91 91 91 91 91 92 92 92 92 92 92 92 92 92 92 92 92 91 91 91 91 91 82 82 82 82 82 82 87 87 87 87 87 84
4815 4816 4817 4818 4819 4820 4821 4822 4823 4824 4826 4827 4830 4831 4836 4837 4838 4839 4840 4841 4842 4850 4851 4852 4853 4854 4855 4856 4857 4858 4859 4860 4861 4869 4870 4871 4872 4873 4874 4875 4876 4877 4878 4879 4880 4881 4884 4886 4888 4894
84 84 84 84 84 84 84 84 84 84 84 84 87 87 85 85 85 85 85 85 85 71 71 71 71 71 71 71 71 72 72 72 72 71 71 71 71 71 71 71 71 71 71 71 71 71 73 73 73 73
4896 4898 4904 4908 4910 4911 4912 4913 4915 4916 4917 4918 5000 5002 5006 5020 5022 5024 5031 5033 5035 5038 5039 5040 5042 5044 5055 5057 5059 5066 5067 5068 5069 5070 5071 5074 5075 5076 5082 5083 5084 5085 5086 5087 5088 5089 5090 5101 5103 5105
73 73 73 73 73 73 73 73 73 73 73 73 12 12 12 12 12 12 13 13 13 12 12 12 12 12 13 13 13 13 13 13 13 13 13 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15
5107 5109 5127 5128 5128 5129 5130 5135 5146 5163 5166 5190 5195 5196 5197 5198 5199 5200 5201 5201 5202 5202 5203 5203 5204 5205 5205 5206 5207 5207 5208 5208 5209 5209 5210 5210 5211 5212 5212 5213 5214 5214 5215 5216 5216 5217 5221 5222 5223 5224
15 15 12 12 12 12 12 12 12 12 12 48 13 13 13 13 13 11 11 14 11 14 11 14 11 11 14 11 11 14 11 14 11 14 11 14 11 11 14 11 11 14 11 11 14 11 13 11 11 11
5225 5226 5229 5230 5231 5232 5232 5233 5234 5238 5239 5240 5241 5310 5311 5312 5315 5326 5327 5414 5418 5419 5430 5431 5432 5433 5435 5437 5438 5439 5440 5441 5442 5443 5444 5445 5446 5447 5448 5449 5478 5479 5480 5481 5482 5483 5484 5485 5495 5497
11 11 11 14 14 11 14 14 14 14 11 11 11 12 12 12 12 12 12 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 58 58 58 58 58 58 58 54 57 56
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5498 5499 5517 5518 5519 5520 5522 5524 5531 5533 5535 5536 5537 5538 5538 5540 5540 5541 5543 5544 5544 5545 5546 5546 5547 5548 5549 5550 5551 5553 5556 5643 5644 5645 5646 5647 5649 5650 5651 5652 5653 5654 5655 5656 5657 5658 5659 5660 5661 5662
56 54 55 55 55 12 12 12 13 13 13 57 55 17 59 17 59 59 59 17 59 59 17 59 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 56 55 56 56 56 56 56
5663 5664 5665 5666 5667 5668 5669 5670 5674 5675 5676 5677 5678 5679 5680 5681 5682 5683 5684 5685 5686 5687 5690 5691 5692 5692 5694 5694 5695 5696 5697 5698 5704 5705 5706 5707 5708 5713 5714 5715 5717 5718 5719 5720 5738 5741 5742 5744 5746 5777
56 56 56 56 56 56 56 56 56 56 57 57 56 57 56 57 57 57 57 57 57 56 56 57 55 56 55 56 54 54 56 56 54 56 56 56 55 57 57 57 54 54 55 54 57 56 56 55 55 56
5778 5779 5783 5784 5792 5793 5795 5796 5797 5798 5799 5800 5801 5802 5805 5813 5814 5819 5820 5822 5824 5831 5833 5835 5840 5840 5846 5846 5852 5854 5854 5862 5862 5864 5865 5866 5867 5875 5876 5877 5878 5879 5885 5886 5887 5888 5891 5892 5893 5894
56 56 57 57 57 57 55 55 57 55 56 56 55 55 56 58 58 56 13 13 13 13 13 13 17 59 17 59 16 17 59 17 59 57 57 56 56 56 56 56 56 56 55 55 55 55 56 57 58 55
5900 5901 5902 5903 5904 5960 5961 5962 5964 5965 5966 5980 5981 5984 5985 5986 5990 5991 5992 5993 5994 5995 5996 6000 6001 6002 6003 6004 6005 6006 6007 6009 6010 6011 6012 6013 6014 6015 6016 6017 6018 6019 6027 6028 6029 6030 6031 6032 6033 6034
16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 55 55 55 55 55 55 55 49 49 48 48 49 49 49 48 49 49 49 49 49 49 49 49 48 49 49 49 49 49 50 50 50 50 50
6035 6036 6038 6052 6053 6054 6055 6056 6057 6059 6061 6068 6069 6070 6071 6072 6073 6083 6084 6089 6091 6114 6129 6130 6131 6132 6133 6134 6137 6138 6139 6140 6141 6142 6143 6144 6145 6146 6147 6148 6149 6157 6158 6159 6160 6161 6162 6163 6164 6165
50 50 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 48 69 69 69 69 69 69 54 54 54 54 54 54 54 54 54 54 54 54 54 52 52 52 52 52 52 52 52 52
COMPCAMS.COM CAM HELP® 1.800.999.0853
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6166 6167 6168 6169 6170 6172 6173 6174 6184 6185 6186 6187 6188 6189 6190 6191 6192 6193 6194 6195 6196 6197 6198 6199 6200 6203 6204 6205 6208 6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219 6222 6224 6225 6226 6227 6228 6229 6230 6231 6232
53 53 53 53 52 52 52 57 53 53 53 53 53 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 54 54 54 54 54 54 54 54 54 54 54 54 54 58 58 58 58 58 58 58 58 58
6233 6234 6235 6236 6237 6238 6239 6240 6241 6242 6243 6244 6245 6246 6247 6248 6249 6250 6251 6252 6253 6254 6255 6256 6257 6258 6259 6260 6261 6262 6263 6264 6265 6266 6267 6268 6269 6270 6275 6276 6277 6278 6280 6281 6282 6283 6284 6285 6286 6289
58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 59 59 59 59 59 59 59 58 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 58 59 59 59 59 59 59 59 59
6290 6291 6292 6293 6294 6295 6301 6302 6303 6304 6305 6306 6307 6308 6310 6312 6313 6314 6327 6328 6329 6330 6331 6332 6333 6334 6335 6336 6400 6401 6402 6403 6404 6405 6406 6407 6408 6409 6410 6411 6412 6413 6414 6415 6416 6417 6418 6419 6420 6440
54 54 54 54 58 54 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 49
6442 6444 6453 6455 6457 6459 6575 6576 6577 6578 6579 6580 6581 6582 6583 6584 6585 6586 6587 6588 6589 6590 6591 6592 6593 6594 6595 6596 6602 6610 6611 6612 6622 6624 6626 6628 6703 6704 6705 6706 6707 6708 6709 6710 6711 6712 6713 6714 6715 6716
49 49 49 49 49 49 17 17 17 17 70 70 70 70 70 70 70 70 70 70 70 70 70 17 17 17 17 17 70 70 70 70 16 16 16 16 159 159 159 159 159 159 159 159 159 159 159 159 159 159
6717 6718 6720 6724 6730 6780 6782 6784 6786 6788 6800 6801 6802 6803 6804 6805 6806 6807 6808 6882 6883 6884 6885 6886 6887 7015 7016 7020 7021 7022 7023 7028 7037 7038 7039 7040 7041 7042 7043 7044 7049 7068 7069 7071 7072 7073 7074 7075 7077 7078
159 159 159 159 159 60 60 60 60 60 155 155 155 155 155 155 155 155 155 15 15 15 15 15 15 63 63 65 65 65 65 65 66 66 66 66 66 66 66 66 66 64 64 64 64 64 64 64 64 64
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7079 7080 7081 7084 7085 7086 7087 7110 7113 7114 7115 7116 7117 7118 7120 7121 7122 7123 7124 7125 7127 7130 7131 7132 7133 7134 7135 7136 7158 7159 7160 7161 7162 7163 7164 7165 7166 7168 7169 7170 7171 7172 7174 7185 7186 7187 7188 7189 7190 7191
64 64 64 65 65 65 65 63 63 63 63 63 63 63 65 65 65 65 65 64 64 61 61 61 61 61 64 63 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62
7192 7193 7194 7203 7204 7205 7206 7207 7208 7250 7260 7261 7262 7263 7265 7266 7267 7353 7354 7355 7356 7357 7358 7359 7362 7363 7364 7365 7366 7367 7368 7380 7381 7382 7383 7384 7385 7386 7387 7388 7389 7393 7394 7395 7396 7399 7404 7405 7406 7408
62 62 62 67 67 67 67 67 67 61 61 61 61 61 61 61 61 65 65 65 65 65 65 65 65 65 65 65 65 65 65 64 64 64 64 64 64 64 64 64 64 61 61 61 64 64 61 61 61 61
7409 7411 7412 7413 7414 7415 7416 7665 7666 7667 7668 7669 7670 7671 8006 8007 8008 8022 8023 8024 8025 8026 8064 8066 8090 8096 8098 8250 8251 8252 8253 8254 8255 8260 8261 8262 8304 8306 8312 8314 8316 8325 8327 8360 8362 8364 8366 8410 8411 8412
61 61 61 61 61 61 61 66 66 66 66 66 66 66 149 149 149 149 149 149 149 149 150 150 150 150 150 153 153 153 153 153 153 153 153 153 150 150 150 150 150 150 150 150 150 150 150 151 151 151
8413 8414 8420 8421 8422 8423 8424 8430 8432 8434 8436 8440 8442 8444 8552 8553 8554 8555 8556 8560 8564 8566 8568 8590 8592 8594 8596 8598 8692 8696 8698 8699 8735 8736 8737 8738 8739 8740 8741 8742 8745 8746 8754 8755 8756 8757 8758 8759 8760 8761
151 151 151 151 151 151 151 154 154 154 154 154 154 154 151 151 151 151 151 154 154 154 154 154 154 154 154 154 152 152 152 152 152 152 152 152 152 152 152 152 152 152 151 151 151 151 151 151 151 151
8762 8763 8766 8767 8768 8770 8771 8776 8777 8778 8780 8781 8786 8791 8792 8793 9013 9014 9015 9042 9044 9045 9046 9048 9072 9073 9074 9086 9087 9090 9091 9092 9093 9094 9095 9096 9102 9103 9104 9105 9108 9109 9116 9117 9118 9122 9124 9126 9127 9128
151 151 152 152 152 152 152 152 152 152 152 152 152 152 152 152 155 155 155 155 155 155 155 155 156 156 156 155 155 155 155 155 155 155 155 155 156 156 156 156 155 155 156 156 156 156 156 156 156 156
COMPCAMS.COM CAM HELP® 1.800.999.0853
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9132 9133 9134 9135 9141 9146 9147 9148 9158 9159 9160 9161 9162 9185 9186 9187 9188 9189 9190 9191 9192 9193 9194 9195 9219 9234 9236 9237 9238 9239 9240 9241 9242 9243 9244 9245 9246 9247 9248 9251 9252 9253 9254 9255 9256 9257 9258 9259 9260 9261
156 156 156 156 156 156 156 156 63 63 63 63 63 62 62 62 62 62 62 62 62 62 63 63 144 146 146 146 146 146 142 142 142 142 142 142 146 146 146 146 146 142 142 142 142 142 142 142 142 142
9262 9263 9264 9265 9266 9267 9268 9269 9270 9271 9272 9273 9274 9275 9276 9277 9278 9279 9280 9283 9284 9291 9292 9293 9294 9295 9296 9297 9298 9299 9300 9301 9302 9303 9304 9306 9307 9310 9311 9312 9313 9314 9315 9320 9321 9322 9323 9324 9325 9326
142 142 142 142 143 143 143 143 143 143 143 143 142 142 142 143 143 143 143 144 144 143 143 143 143 143 143 143 143 143 144 144 144 144 144 144 144 144 144 144 144 144 144 142 142 142 142 142 142 142
9327 9341 9342 9343 9344 9345 9346 9360 9361 9362 9363 9364 9365 9366 9367 9368 9369 9370 9371 9373 9374 9375 9376 9377 9384 9385 9386 9387 9388 9389 9418 9419 9420 9423 9424 9425 9444 9445 9446 9602 9603 9604 9605 9606 9608 9631 9632 9633 9635 9636
142 142 142 142 142 142 142 67 67 67 67 67 67 67 67 67 67 67 144 144 66 66 66 66 63 63 63 63 63 63 158 158 158 158 158 158 158 158 158 69 69 69 69 69 69 69 69 69 68 68
9637 9638 9639 9709 9710 9711 9712 9713 9714 9771 9772 9773 9800 9801 9802 9807 9808 9828 9829 9830 9831 9832 9833 9834 9835 9837 11000 11001 11002 11003 11023 11026 11027 11028 11029 11051 11052 11053 11060 11061 11062 11064 11066 11075 11076 11077 11078 11080 11081 11082
68 68 68 67 67 68 68 68 68 67 67 67 67 67 67 68 68 69 69 69 69 69 69 69 69 69 112 112 112 113 137 137 137 137 137 137 137 137 125 125 125 126 125 126 126 126 126 128 128 128
11083 11084 11090 11091 11092 11093 11094 11103 11104 11105 11106 11107 11113 11115 11116 11117 11119 11124 11126 11127 11128 11130 11132 11145 11147 11149 11151 11153 11155 11157 11166 11170 11171 11172 11173 11175 11177 11192 11194 11195 11196 11230 11231 11232 11236 11258 11259 11260 11261 11262
128 128 138 138 138 138 138 113 113 113 113 113 106 106 106 106 106 116 116 116 116 116 116 132 132 132 132 132 132 132 114 114 114 114 132 132 132 125 125 125 125 119 119 119 119 124 124 124 124 124
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11263 11265 11268 11269 11270 11271 11272 11273 11275 11282 11283 11284 11302 11303 11304 11305 11306 11307 11308 11309 11310 11311 11312 11313 11314 11315 11316 11317 11318 11340 11342 11344 11346 11348 11352 11353 11354 11363 11364 11368 11369 11370 11375 11376 11377 11460 11462 11464 11466 11468
124 124 126 126 126 126 126 126 126 137 137 137 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 127 127 127 131 131 127 127 127 127 127 127 83 83 83 83 83
11470 11472 11474 11476 11480 11494 11495 11496 11503 11504 11505 11506 11508 11509 11510 11511 11512 11513 11514 11515 11516 11517 11518 11519 11520 11526 11530 11531 11532 11534 11535 11536 11537 11560 11561 11563 11607 11609 11611 11710 11711 11728 11730 11732 11734 11736 11737 11740 11743 11748
83 83 83 83 123 123 123 123 102 102 102 102 89 89 89 89 89 89 89 89 89 89 89 89 89 123 123 123 123 89 89 89 89 129 129 129 106 106 106 105 105 104 104 104 104 105 105 123 123 123
11888 11889 11890 11891 11892 11902 11903 11904 11906 11908 11918 11919 11920 11922 11924 11926 11928 11954 11955 11956 11957 11958 11962 11964 11966 11975 11976 11977 11978 11979 12021 12022 12023 12044 12045 12046 12047 12048 12050 12052 12054 12060 12061 12066 12067 12068 12072 12073 12074 12075
100 100 100 100 100 100 100 100 100 100 106 106 106 106 106 106 106 107 107 107 107 107 107 107 107 117 117 117 117 117 125 125 125 125 125 125 125 125 90 90 90 118 118 119 119 119 137 137 137 137
12076 12084 12090 12091 12094 12095 12096 12100 12102 12103 12104 12106 12108 12110 12112 12114 12116 12117 12118 12127 12129 12131 12133 12134 12136 12138 12140 12142 12149 12162 12163 12170 12171 12172 12173 12174 12175 12176 12177 12178 12179 12180 12181 12182 12183 12185 12187 12188 12189 12190
137 119 119 119 125 125 125 95 95 95 39 39 39 39 39 136 136 136 136 125 91 91 91 39 39 39 39 39 125 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 99 99 99 99 99 99
12191 12192 12193 12194 12195 12196 12197 12198 12199 12200 12201 12202 12203 12204 12205 12206 12207 12208 12209 12210 12211 12212 12213 12214 12215 12216 12217 12218 12219 12220 12221 12222 12223 12224 12225 12226 12227 12228 12229 12230 12231 12232 12233 12234 12254 12255 12256 12257 12258 12260
99 99 99 99 99 99 99 90 90 90 90 90 90 90 90 90 90 90 123 123 123 123 123 124 124 124 124 124 124 124 134 134 134 134 134 134 134 134 134 99 99 99 99 99 124 124 124 124 124 80
COMPCAMS.COM CAM HELP® 1.800.999.0853
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12261 12262 12264 12265 12266 12267 12268 12274 12275 12280 12281 12282 12294 12295 12296 12297 12298 12300 12301 12303 12304 12305 12306 12307 12308 12309 12310 12311 12312 12313 12314 12315 12316 12317 12318 12322 12324 12325 12328 12329 12330 12331 12332 12333 12334 12338 12339 12341 12342 12343
80 80 133 133 80 80 80 101 101 101 101 101 124 124 124 124 124 105 105 105 105 105 105 105 121 121 121 121 121 137 137 137 137 137 137 105 105 137 138 138 127 127 127 127 127 131 131 127 127 127
12344 12349 12352 12353 12356 12357 12358 12361 12362 12366 12367 12368 12369 12371 12372 12373 12374 12375 12376 12377 12378 12379 12380 12381 12382 12383 12384 12385 12386 12387 12388 12389 12390 12391 12392 12393 12394 12398 12399 12400 12401 12402 12403 12404 12405 12406 12407 12408 12409 12410
127 131 127 127 127 127 127 138 138 90 138 138 138 90 90 90 102 102 102 102 102 102 102 102 102 102 102 102 102 138 138 138 124 124 124 121 121 134 127 121 138 134 134 90 90 90 90 121 90 90
12411 12412 12416 12417 12418 12419 12420 12421 12422 12423 12424 12425 12426 12428 12429 12430 12431 12432 12433 12434 12435 12436 12437 12438 12439 12440 12441 12442 12443 12444 12445 12446 12447 12448 12449 12450 12451 12455 12456 12457 12458 12459 12460 12461 12462 12463 12467 12470 12471 12472
90 121 121 121 121 121 121 121 121 121 121 121 121 121 121 121 121 121 121 121 121 121 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 135 133 133 133
12474 12475 12476 12478 12480 12482 12483 12484 12485 12486 12488 12489 12490 12494 12495 12496 12497 12498 12500 12502 12504 12506 12508 12510 12522 12524 12526 12527 12528 12530 12537 12538 12539 12540 12541 12542 12543 12543 12544 12545 12546 12547 12548 12549 12550 12551 12552 12554 12555 12556
135 135 100 100 100 100 100 100 100 100 126 126 126 101 122 122 122 101 94 94 94 94 94 94 94 94 94 94 94 94 45 136 136 93 136 136 93 93 136 136 136 136 136 136 93 136 93 93 93 93
12558 12560 12564 12566 12568 12570 12571 12572 12573 12574 12575 12576 12577 12578 12580 12581 12582 12583 12584 12586 12587 12588 12589 12590 12594 12596 12597 12600 12602 12604 12605 12606 12607 12608 12610 12611 12612 12614 12616 12618 12619 12620 12621 12623 12624 12625 12626 12629 12630 12632
93 93 94 94 94 94 94 94 94 94 94 94 94 94 94 93 93 93 93 135 135 93 93 136 45 136 45 39 39 105 136 136 136 39 39 136 39 39 39 39 136 136 136 136 136 136 136 136 39 39
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12634 12636 12638 12642 12644 12646 12648 12649 12650 12652 12654 12655 12656 12657 12658 12662 12664 12668 12669 12670 12671 12672 12673 12674 12675 12676 12677 12678 12679 12680 12681 12682 12683 12684 12685 12686 12688 12689 12690 12691 12692 12693 12694 12695 12696 12697 12698 12699 12700 12701
39 39 39 39 39 39 104 104 104 104 104 42 42 42 42 45 105 36 36 36 36 36 36 36 36 36 36 36 37 37 37 37 37 37 37 37 42 42 37 37 37 37 37 37 37 37 37 37 37 37
12702 12703 12704 12705 12706 12707 12708 12709 12710 12711 12712 12713 12714 12715 12716 12718 12719 12720 12721 12722 12723 12724 12725 12726 12727 12728 12729 12730 12731 12732 12733 12735 12736 12737 12738 12739 12740 12741 12742 12743 12744 12745 12746 12748 12749 12750 12751 12752 12753 12754
37 37 37 37 42 42 42 123 43 43 43 43 43 43 122 43 43 43 122 122 122 122 122 122 122 122 43 123 133 133 133 133 133 123 123 123 122 122 122 122 122 122 104 104 105 105 105 105 105 105
12756 12757 12758 12759 12768 12769 12773 12776 12778 12786 12787 12795 12796 12797 12804 12805 12806 12807 12808 12813 12823 12825 12827 12829 12831 12833 12835 12836 12837 12839 12840 12841 12842 12843 12844 12845 12846 12847 12848 12849 12850 12851 12852 12854 12855 12856 12857 12858 12859 12864
122 122 122 122 122 123 43 134 134 43 43 135 135 135 134 134 134 134 134 122 130 130 130 130 130 130 130 130 130 130 122 122 122 122 122 122 37 37 37 37 122 122 122 36 36 36 36 36 36 37
12865 12866 12867 12868 12869 12874 12875 12876 12877 12878 12893 12894 12895 12896 12899 12900 12901 12905 12907 12908 12909 12910 12914 12915 12916 12917 12918 12919 12920 12922 12923 12924 12926 12927 12929 12932 12933 12939 12941 12942 12943 12951 12952 12953 12954 12955 12956 12957 12958 12959
37 37 37 37 37 37 37 37 37 37 122 122 122 122 105 105 105 105 105 105 105 105 45 45 42 42 42 42 42 45 42 42 42 42 42 42 42 122 122 122 122 135 135 135 135 135 101 101 101 101
12963 12964 12965 12982 12984 12985 12987 12988 12991 12992 12993 12994 12995 13010 13011 13013 13014 13015 13016 13017 13018 13019 13020 13021 13022 13023 13024 13025 13026 13027 13028 13029 13033 13034 13037 13041 13045 13046 13047 13048 13050 13051 13052 13053 13054 13055 13056 13057 13058 13059
101 101 101 123 123 123 123 123 123 123 123 123 123 45 43 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 28 28 28 32 28 28 28 28 28 28 28 28 28 28 28 28 28 28
COMPCAMS.COM CAM HELP® 1.800.999.0853
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13064 13065 13066 13067 13068 13069 13070 13071 13072 13074 13075 13080 13081 13082 13083 13084 13085 13086 13087 13088 13089 13090 13093 13094 13095 13096 13097 13099 13115 13116 13117 13118 13119 13120 13121 13122 13123 13125 13130 13131 13132 13133 13134 13135 13136 13137 13138 13139 13140 13141
29 29 29 29 29 29 45 45 45 29 29 23 23 23 23 23 23 23 23 23 23 23 32 32 32 32 32 32 33 33 33 33 33 33 33 33 32 32 23 23 23 23 23 24 24 24 24 24 24 24
13142 13143 13144 13145 13146 13147 13148 13149 13150 13151 13155 13156 13157 13158 13159 13160 13161 13162 13163 13164 13165 13166 13167 13168 13169 13170 13172 13173 13174 13175 13176 13180 13181 13182 13183 13184 13185 13186 13187 13194 13195 13196 13197 13198 13199 13202 13203 13230 13231 13232
24 24 24 24 24 24 24 44 44 44 33 33 33 33 33 33 33 33 34 34 34 34 34 34 34 34 33 33 33 33 33 35 35 35 35 35 35 35 32 43 43 42 43 43 43 28 28 32 32 32
13233 13234 13235 13236 13237 13238 13248 13249 13258 13262 13263 13264 13265 13266 13267 13268 13269 13299 13300 13301 13302 13303 13304 13305 13306 13307 13310 13311 13312 13313 13314 13315 13316 13317 13318 13321 13322 13323 13324 13325 13326 13330 13331 13332 13333 13334 13335 13340 13341 13342
32 32 32 32 32 32 44 44 44 34 34 34 34 34 34 34 34 35 35 35 35 35 35 35 35 35 36 36 36 36 36 36 36 36 36 32 32 32 32 32 32 36 36 36 36 36 36 36 36 36
13343 13344 13345 13354 13355 13356 13357 13358 13360 13361 13368 13370 13372 13374 13376 13380 13382 13384 13390 13391 13392 13393 13394 13395 13396 13397 13398 13440 13441 13442 13443 13444 13445 13446 13447 13448 13449 13450 13451 13452 13453 13454 13455 13456 13457 13458 13459 13460 13461 13462
36 36 36 20 20 20 20 20 28 28 44 44 44 44 44 44 44 44 19 19 19 19 19 19 19 19 19 24 24 24 24 24 24 24 24 24 24 24 24 24 24 25 25 25 25 25 25 25 25 25
13470 13471 13472 13473 13474 13475 13476 13477 13478 13479 13480 13481 13482 13483 13484 13485 13486 13487 13488 13489 13490 13491 13492 13531 13533 13540 13541 13542 13543 13544 13545 13546 13547 13548 13549 13550 13551 13552 13553 13554 13555 13556 13557 13558 13570 13571 13572 13573 13574 13575
25 25 25 25 25 25 25 25 25 25 25 26 26 26 26 26 26 26 26 26 26 26 26 21 21 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 27 27 27 27 27 27
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PAGE #
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PAGE #
13576 13577 13578 13579 13580 13581 13582 13583 13584 13585 13586 13587 13588 13592 13595 13596 13598 13600 13602 13632 13634 13636 13638 13640 13642 13644 13646 13648 13650 13652 13665 13682 13686 13688 13690 13692 13696 13698 13700 13702 13704 13707 13709 13711 13717 13719 13721 13722 13723 13724
27 27 27 27 27 27 27 27 27 27 27 27 27 45 45 39 39 42 45 39 39 39 39 39 39 39 39 39 39 39 43 42 42 42 42 42 43 43 43 43 43 43 43 43 43 43 43 43 43 43
13725 13729 13738 13740 13742 13751 13752 13754 13770 13772 13774 13775 13776 13777 13778 13779 13780 13781 13782 13783 13785 13787 13790 13791 13792 13793 13794 13795 13796 13800 13801 13802 13816 13831 13833 13837 13838 13839 13840 13841 13842 13843 13844 13845 13846 13847 13848 13849 13861 13862
43 43 29 29 29 42 42 43 40 40 29 29 29 29 29 29 29 29 29 29 40 40 29 29 29 29 29 29 29 45 45 45 42 43 43 33 33 33 33 33 33 33 33 33 33 33 33 33 29 29
13863 13868 13870 13872 13874 13886 13940 13941 13942 13943 13944 13946 13948 13950 13952 13954 13956 13958 13960 13962 13964 13966 13976 13978 13980 13982 13984 13986 13988 13990 13992 13994 14004 14006 14008 14013 14020 14021 14022 14023 14024 14025 14026 14028 14030 14038 14039 14040 14042 14044
29 35 35 35 35 35 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 40 40 40 40 40 40 40 40 40 40 98 98 98 98 104 104 104 104 104 104 104 104 104 138 138 138 138 138
14049 14050 14051 14052 14053 14054 14142 14144 14146 14154 14155 14156 14157 14158 14164 14165 14166 14167 14168 14240 14241 14242 14243 14244 14245 14246 14247 14248 14255 14256 14257 14280 14282 14284 14285 14286 14287 14288 14293 14294 14296 14310 14311 14312 14313 14314 14315 14316 14317 14318
113 113 113 113 113 113 98 98 98 141 141 141 141 141 141 141 141 141 141 121 121 121 121 121 121 121 121 121 84 84 84 100 100 100 100 100 100 100 101 101 101 38 38 38 38 38 38 38 38 38
14319 14320 14321 14322 14323 14324 14334 14335 14336 14337 14338 14339 14340 14341 14342 14343 14344 14345 14346 14347 14348 14349 14350 14387 14388 14406 14407 14408 14409 14410 14416 14490 14492 14494 14496 14502 14504 14506 14508 14510 14512 14513 14514 14616 14617 14618 14619 14620 14621 14622
38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 38 103 103 120 120 120 120 120 120 103 103 103 103 91 91 91 91 91 91 91 91 104 104 104 104 104 104 104
COMPCAMS.COM CAM HELP® 1.800.999.0853
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14623 14624 14625 14626 14627 14628 14658 14682 14683 14684 14700 14701 14702 14703 14704 14705 14706 14711 14722 14723 14724 14725 14726 14727 14735 14736 14748 14749 14750 14761 14762 14763 14820 14821 14822 14823 14824 14825 14826 14848 14849 14850 14851 14852 14853 14854 14855 14856 14862 14864
104 104 104 104 104 104 104 106 106 106 43 43 43 43 43 43 43 43 40 40 40 40 40 40 40 40 105 105 105 105 105 105 103 103 103 103 103 103 103 120 120 120 120 120 120 120 120 120 103 103
14866 14868 14870 14872 14873 14874 14875 14876 14877 14878 14888 14889 14890 14891 14892 14893 14894 14898 14899 14900 14901 14902 14907 14908 14909 14910 14911 14912 14913 14917 14925 14927 14929 14931 14933 14947 14949 14951 14953 14970 14971 14972 14973 14974 14975 14976 14977 14978 14979 15400
103 103 103 72 72 72 72 72 72 72 120 120 120 120 120 120 120 120 120 120 120 120 132 132 132 132 132 132 132 72 101 72 132 132 132 132 132 132 132 72 72 72 72 72 72 72 72 72 72 57
15401 15402 15403 15404 15405 15406 16104 16106 16108 16110 16112 16114 16116 16118 16188 16200 16202 16203 16204 16206 16208 16210 16212 16214 16216 16218 16220 16222 16226 16230 16231 16234 16235 16236 16237 16246 16248 16258 16259 16260 16261 16262 16263 16264 16265 16266 16267 16268 17238 17239
57 57 57 57 57 57 53 53 53 53 53 53 53 53 60 60 60 60 60 60 60 60 60 60 60 60 60 60 53 53 53 53 53 53 53 53 53 51 51 51 51 51 51 51 51 51 51 51 68 68
17240 17241 17242 17244 17245 17246 17248 17382 17525 17537 17538 17549 17570 17572 17574 17576 17600 17605 19194 19202 19203 19204 19205 19207 19209 19213 19214 19215 19216 19221 19223 19225 19235 19236 19237 19238 19240 19242 19244 19246 19251 19253 19254 19255 19256 19258 19262 19263 19264 19265
68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 146 146 146 146 146 146 146 146 146 146 146 146 146 146 144 144 144 144 147 147 147 147 147 147 147 147 147 147 145 145 145 145
19266 19267 19268 19269 19272 19273 19274 19275 19276 19277 19278 19279 19280 19285 19286 19287 19288 19289 19291 19292 19293 19294 19295 19296 19297 19298 19299 19300 19301 19305 19306 19307 19314 19315 19316 19317 19318 19319 19334 19337 19338 19339 19340 19341 19342 19343 19344 19345 19346 19350
145 145 145 145 145 145 145 145 145 145 145 145 145 144 143 143 143 143 143 143 143 143 143 143 143 144 144 144 143 143 143 143 144 144 144 144 144 144 145 143 143 143 143 145 145 145 145 145 145 144
LOBE INDEX
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19351 19352 19353 19354 19355 19356 19359 19360 19361 19362 19363 19367 19368 19369 19370 19380 19390 19391 19400 19402 19404 19409 19411 19413 19425 19464 19465 19466 19520 19522 19524 19531 19533 19535 19554 19556
144 144 144 144 144 144 142 142 142 142 142 145 145 145 145 145 145 145 147 147 147 147 147 147 158 146 146 146 158 158 158 158 158 158 147 147
19558 19564 19565 19566 19567 19568 19569 19575 19576 19577 19578 19579 19580 19581 19582 19583 19584 19585 19586 19587 19588 19589 19590 19591 19592 19593 19594 19595 19596 19597 19598 19599 19605 19606 19607 19608
147 147 147 147 147 147 147 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 149 149 149 149 149 149 149 149 148 148 148 149
19609 19610 19611 19615 19616 19617 19618 19650 19651 19652 19701 19702 19703 19704 19705 19706 19707 19708 19712 19713 19714 19717 19718 19719 19766 19767 19768 19769 19820 19821 19822 19823 19824 19825 19830 19831
149 149 149 149 149 149 149 149 149 149 157 157 157 157 157 157 157 157 157 157 157 157 157 157 147 147 147 147 148 148 148 148 148 148 148 148
19832 19833 19834 19835 19836 20400 20401 20402 20404 20410 20412 20413 20414 20428 20430 20432 20515 20519 20520 20521 20522 20525 20527 20535 20540 20541 20542 20572 20574 23010 23012 23014 23016 23018 23031 23033
148 148 148 148 148 99 99 99 99 99 99 99 99 99 99 99 80 80 80 80 80 80 80 21 80 80 80 80 80 47 47 47 47 47 47 47
23035 23037 23039 23052 23054 23056 23058 23060 23073 23075 23077 23079 23081 5110A 5120A 5126A 5136A 8202-8203 8204-8205 8206-8207 8216-8217 8218-8219 8232-8233 8234-8235 8236-8237 8240-8241 8242-8243 8374-8375 8376-8377 8380-8381 8382-8383 8384-8385 8386-8387
47 47 47 47 47 47 47 47 47 47 47 47 47 12 12 12 12 153 153 153 153 153 153 153 153 153 153 150 150 150 150 150 150
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