Description
High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
Resources
Installation Instructions
Specifications:
| Advertised Exhaust Duration | 311 |
| Advertised Intake Duration | 291 |
| Amazon ASIN | B005H89R54 |
| Assembly Lubricant Included | No |
| Basic Operating RPM Range | 2,200-5,900 |
| 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 | 1996-1999 Chevrolet 454/502 GEN VI Big Block |
| Description_DEF | Engine Camshaft and Lifter Kit |
| Description_DES | Mutha’ Thumpr 235/249 Hydraulic Roller Cam for Chevrolet Big Block GEN VI |
| Description_DES | Mutha’ Thumpr 235/249 Hydraulic Roller Cam/Lifter Kit Chevrolet Big Block GEN VI |
| Description_DES | OE-Style Hydraulic Roller Lifter for ’96+ Chevrolet GEN VI Big Block and 8.1L |
| Description_EXT | High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle. |
| Description_INV | M-Thmpr 235/249 H-Rlr CL-Kit BBC GEN VI |
| 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 GEN VI 454 and 502 c.i. 8 Cylinder (1996-1999) |
| Exhaust Duration at .050 inch Lift | 249 |
| Exhaust Valve Lift | 0.542 |
| Gaskets Included | No |
| height | 3.0 |
| Intake Duration at .050 Inch Lift | 235 |
| Intake Valve Lift | 0.557 |
| 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 | Mutha’ Thumpr 235/249 Hydraulic Roller Cam/Lifter Kit Chevrolet Big Block GEN VI |
| Usage | Street/Strip |
| Valve Springs Required | Yes |
| Valve Stem Seals Included | No |
| weight | 18.0 |
| width | 5.5 |
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