COMP Cams Thumpr 227/241 Hydraulic Flat Cam for Chevrolet Small Block 12-600-4
Specifications:
| Camshaft Series | Thumpr |
| Usage | Street/Performance |
| Cam Type | Hydraulic Flat Tappet |
| Grind Number | 279TH7 |
| Basic Operating RPM Range | 2,000-5,800 |
| Intake Duration at .050 Inch Lift | 227 |
| Exhaust Duration at .050 inch Lift | 241 |
| Advertised Intake Duration | 279 |
| Advertised Exhaust Duration | 297 |
| Lobe Separation | 107 |
| Intake Valve Lift | 0.479 |
| Exhaust Valve Lift | 0.465 |
| Lifters Included | No |
| Valve Springs Required | Yes |
| Assembly Lubricant Included | Yes |
| Camshaft Gear Attachment | 3-Bolt |
| Camshaft Material | Cast Iron |
| Cam, Lifter and Gear Drive Upgrade | GK12-600-4 |
| K-Kit Upgrade | K12-600-4 |
| Lifter Type | Hydraulic Flat Tappet |
| Cam and Lifter Kit Upgrade | CL12-600-4 |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| Engine Family | Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
| Amazon ASIN | B001O0C4DQ |
| 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. 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 California Certified Vehicles Manufactured Before 1965? | 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. Exemption Reason | N/A |
| C.A.R.B. E.O. Number | N/A |
| Title | Thumpr 227/241 Hydraulic Flat Cam for Chevrolet Small Block |
| 10602 | 279TH7 |
| Description_APS | 5. |
| Description_APS | 3 |
| Description_APS | 5. |
| Description_APS | 7 |
| Description_APS | 6. |
| Description_APS | 0 and 6. |
| Description_APS | 2. |
| Description_APS | 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. |
| Description_APS | Contact us for more information. |
| Description_EXT | High performance street |
| Description_EXT | stock converter ok |
| Description_EXT | best with 2000+ converter and gears. Choppy/thumping idle. |
| Description_DEF | Engine Camshaft |
| Description_SHO | 279TH7 |
| Description_INV | Thumpr 227/241 Hyd Flat Cam SBC |
| Description_KSW | 265 |
| Description_KSW | 283 |
| Description_KSW | 307 |
| Description_KSW | 302 |
| Description_KSW | 305 |
| Description_KSW | 327 |
| Description_KSW | 350 |
| Description_KSW | 383 |
| Description_KSW | 400 |
| Description_KSW | 427 |
| Description_KSW | L46 |
| Description_KSW | L48 |
| Description_KSW | L65 |
| Description_KSW | LM1 |
| Description_KSW | LT-1 |
| Description_KSW | L82 |
| Description_KSW | L81 |
| Description_KSW | LS9 |
| Description_KSW | L83 |
| Description_KSW | L98 |
| Description_KSW | L05 |
| Description_KSW | LG3 |
| Description_KSW | LG4 |
| Description_KSW | LT1 |
| Description_KSW | LT4 |
| Description_KSW | Camaro |
| Description_KSW | Corvette |
| Description_KSW | Chevelle |
| Description_KSW | Stingray |
| Description_KSW | Silverado |
| Description_KSW | C10 |
| Description_KSW | Firebird |
| Description_KSW | Chevrolet |
| Description_KSW | Chevy |
| Description_KSW | Small Block Chevy |
| Description_KSW | Caprice |
| Description_KSW | Malibu |
| Description_KSW | Impala |
| Description_KSW | Nova |
| Description_KSW | 355 |
| Description_KSW | GEN1 |
| Description_KSW | Monte Carlo |
| Description_KSW | S10 |
| Description_DES | Thumpr 227/241 Hydraulic Flat Cam for Chevrolet Small Block |
| Description_APS | Fits Chevrolet GEN 1 Small Blocks including the 262 |
| Description_APS | 265 |
| Description_APS | 267 |
| Description_APS | 283 |
| Description_APS | 302 |
| Description_APS | 305 |
| Description_APS | 307 |
| Description_APS | 327 |
| Description_APS | 350 and 400. |
| Description_APS | Does not fit LT1/LT4 |
| Description_APS | or factory roller Small Blocks built from 1985 and newer. |
| Description_APS | GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. |
| Description_APS | Camaros/Firebirds/Corvettes received the roller cams early |
| Description_APS | but many trucks and SUV's had flat tappet cams until the mid 90's. |
| Description_APS | Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. |
| Description_APS | Does not fit the LS1 |
| Description_APS | LS2 |
| Description_APS | LS3 or any LS-based 4. |
| Description_APS | 8 |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1957 | Chevrolet | Bel Air | Base |