COMP Cams CL11-600-8 Thumpr 227/241 Hydraulic Roller Cam and Lifter Kit Chevrolet Big Block 396-454
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Description
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Installation InstructionsResources
Installation InstructionsSpecifications
| Advertised Exhaust Duration | 303 |
| Advertised Intake Duration | 283 |
| Amazon ASIN | B001GESFI8 |
| Assembly Lubricant Included | No |
| Basic Operating RPM Range | 1,900-5,500 |
| C.A.R.B. E.O. Number | N/A |
| C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for On-Road Vehicles? | No |
| C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? | Yes, but must be a race/competition only vehicle. |
| C.A.R.B. Exemption Reason | N/A |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| Cam Type | Hydraulic Roller |
| Camshaft Gear Attachment | 3-Bolt |
| Camshaft Material | Austempered Ductile Iron |
| Camshaft Series | Thumpr |
| Description_ASM | Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts |
| Description_DEF | Engine Camshaft and Lifter Kit |
| Description_DES | Retro-Fit Hydraulic Roller Lifter Set for 396-454 Chevrolet Big Block |
| Description_DES | Thumpr 227/241 Hydraulic Roller Cam and Lifter Kit Chevrolet Big Block 396-454 |
| Description_DES | Thumpr 227/241 Hydraulic Roller Cam for Chevrolet Big Block 396-454 |
| Description_EXT | High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle. |
| Description_INV | Thmpr 227/241 H-Rler CL-Kit BBC 396-454 |
| Description_KEY | Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572 |
| Description_MKT | CL-KIT - Cam and Lifter Kit Includes: Camshaft, Lifters, Assembly Lube, Decals and Instructions. |
| Description_SHO | Camshaft, Lifter Kt |
| Description_SHP | None |
| Engine Family | Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) |
| Exhaust Duration at .050 inch Lift | 241 |
| Exhaust Valve Lift | 0.53 |
| Gaskets Included | No |
| height | 3.0 |
| Intake Duration at .050 Inch Lift | 227 |
| Intake Valve Lift | 0.547 |
| Kit Type | CL-Kit - Cam and Lifter Kit |
| length | 26.0 |
| Lifter Type | Hydraulic Roller |
| Lifters Included | Yes |
| Lobe Separation | 107 |
| Locks Included | No |
| LTL | N |
| Retainers Included | No |
| Timing Chain and Gears Included | No |
| Title | Thumpr 227/241 Hydraulic Roller Cam and Lifter Kit Chevrolet Big Block 396-454 |
| Usage | Street/Performance |
| Valve Springs Required | Yes |
| Valve Stem Seals Included | No |
| weight | 16.85 |
| width | 5.0 |