High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
Thumpr 227/241 Hydraulic Flat Cam for Chevrolet Small Block 262-400. High performance street, stock converter ok, best with 2000+ converter and Gears. Choppy/thumping idle.
Thumpr 227/241 Hydraulic Flat Cam for Chevrolet Small Block 262-400. High performance street, stock converter ok, best with 2000+ converter and Gears. Choppy/thumping idle.
Application Summary:
| Year | Make/Model |
|---|---|
| 1973-1980 | Avanti II |
| 1977-1980 | Buick Century |
| 1978 | Buick LeSabre |
| 1977-1980 | Buick Regal |
| 1977-1979 | Buick Skylark |
| 1975-1980 | Checker Marathon |
| 1970-1975 | Chevrolet Bel Air |
| 1970-1972 | Chevrolet Biscayne |
| 1973-1974 | Chevrolet Blazer |
| 1970 | Chevrolet Brookwood |
| 1972 | Chevrolet Brookwood |
| 1975-1980 | Chevrolet C10 |
| 1974 | Chevrolet C10 Pickup |
| 1974-1980 | Chevrolet C10 Suburban |
| 1975-1980 | Chevrolet C20 |
| 1974 | Chevrolet C20 Pickup |
| 1974-1980 | Chevrolet C20 Suburban |
| 1975-1980 | Chevrolet C30 |
| 1974 | Chevrolet C30 Pickup |
| 1972 | Chevrolet Camaro |
| 1974-1980 | Chevrolet Camaro |
| 1970-1980 | Chevrolet Caprice |
| 1974-1977 | Chevrolet Chevelle |
| 1972 | Chevrolet Corvette |
| 1974-1980 | Chevrolet Corvette |
| 1964-1965 | Chevrolet El Camino |
| 1970-1971 | Chevrolet El Camino |
| 1974-1980 | Chevrolet El Camino |
| 1975-1980 | Chevrolet G10 |
| 1974 | Chevrolet G10 Van |
| 1975-1980 | Chevrolet G20 |
| 1974 | Chevrolet G20 Van |
| 1975-1980 | Chevrolet G30 |
| 1974 | Chevrolet G30 Van |
| 1970-1980 | Chevrolet Impala |
| 1975-1980 | Chevrolet K10 |
| 1974 | Chevrolet K10 Pickup |
| 1974-1980 | Chevrolet K10 Suburban |
| 1975-1980 | Chevrolet K20 |
| 1974 | Chevrolet K20 Pickup |
| 1974-1980 | Chevrolet K20 Suburban |
| 1977-1980 | Chevrolet K30 |
| 1974 | Chevrolet K30 Pickup |
| 1975-1980 | Chevrolet K5 Blazer |
| 1970-1972 | Chevrolet Kingswood |
| 1975 | Chevrolet Malibu |
| 1978-1980 | Chevrolet Malibu |
| 1970-1980 | Chevrolet Monte Carlo |
| 1975-1979 | Chevrolet Monza |
| 1974-1979 | Chevrolet Nova |
| 1975 | Chevrolet P10 |
| 1977-1979 | Chevrolet P10 |
| 1975-1980 | Chevrolet P20 |
| 1974 | Chevrolet P20 Van |
| 1975-1980 | Chevrolet P30 |
| 1974 | Chevrolet P30 Van |
| 1970-1972 | Chevrolet Townsman |
| 1980 | Excalibur Phaeton |
| 1975-1978 | GMC C15 |
| 1975-1978 | GMC C15 Suburban |
| 1974 | GMC C15/C1500 Pickup |
| 1974 | GMC C15/C1500 Suburban |
| 1979-1980 | GMC C1500 |
| 1979-1980 | GMC C1500 Suburban |
| 1975-1978 | GMC C25 |
| 1975-1978 | GMC C25 Suburban |
| 1974 | GMC C25/C2500 Pickup |
| 1974 | GMC C25/C2500 Suburban |
| 1979-1980 | GMC C2500 |
| 1979-1980 | GMC C2500 Suburban |
| 1975-1978 | GMC C35 |
| 1974 | GMC C35/C3500 Pickup |
| 1979-1980 | GMC C3500 |
| 1978-1980 | GMC Caballero |
| 1975-1978 | GMC G15 |
| Attributes | |
| Advertised Exhaust Duration | 297, 297, 297 |
| Advertised Intake Duration | 279, 279, 279 |
| Amazon ASIN | B001O0C4DQ, B001O0C4DQ |
| ASIN | B001O0C4DQ |
| Assembly Lubricant Included | Yes, Yes, Yes |
| Basic Operating RPM Range | 2,000-5,800, 2,000-5,800, 2,000-5,800 |
| C.A.R.B. E.O. Number | N/A, N/A |
| C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle., Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for On-Road Vehicles? | No, No |
| C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? | Yes, but must be a race/competition only vehicle., Yes, but must be a race/competition only vehicle. |
| C.A.R.B. Exemption Reason | N/A, N/A |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Cam and Lifter Kit Upgrade | CL12-600-4, CL12-600-4, CL12-600-4 |
| Cam Type | Hydraulic Flat Tappet, Hydraulic Flat Tappet, Hydraulic Flat Tappet |
| Cam, Lifter and Gear Drive Upgrade | GK12-600-4, GK12-600-4, GK12-600-4 |
| Camshaft Gear Attachment | 3-Bolt, 3-Bolt, 3-Bolt |
| Camshaft Material | Cast Iron, Cast Iron, Cast Iron |
| Camshaft Series | Thumpr, Thumpr |
| Country of Origin (Primary) | US |
| Emission Code | Legal US |
| Engine Family | Chevrolet 262-400 c.i. 8 Cylinder (1958-1998), Chevrolet 262-400 c.i. 8 Cylinder (1958-1998), Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
| Engine Make/Size | Chevy Small Block (262-400) |
| Exh. Duration @ .050 in. (Deg) | 241 |
| Exh. Duration Advertised (Deg) | 297 |
| Exhaust Duration at .050 inch Lift | 241, 241, 241 |
| Exhaust Valve Lift | 0.465, 0.465, 0.465 |
| Exhaust Valve Lift (in.) | 0.465 |
| Grind Number | 279TH7, 279TH7 |
| Harmonized Tariff Code (Schedule B) | 8409914000 |
| Hazardous Material Code | Y |
| Int. Duration @ .050 in. (Deg) | 227 |
| Int. Duration Advertised (Deg) | 279 |
| Intake Duration at .050 Inch Lift | 227, 227, 227 |
| Intake Valve Lift | 0.479, 0.479, 0.479 |
| Intake Valve Lift (in.) | 0.479 |
| K-Kit Upgrade | K12-600-4, K12-600-4, K12-600-4 |
| Life Cycle Status Code | Available to Order |
| Lifter Style | Hydraulic Flat Tappet |
| Lifter Type | Hydraulic Flat Tappet, Hydraulic Flat Tappet, Hydraulic Flat Tappet |
| Lifters Included | No, No, No |
| Lobe Separation | 107, 107, 107 |
| NAFTA Preference Criterion Code | B |
| RPM Range | 2000-5800 |
| SDR Required Flag | Y |
| SDS Sheet Number | COMP4-107 |
| Usage | Street/Performance, Street/Performance |
| Valve Springs Required | Yes, Yes, Yes |
| Warranty Time | 12 |
| GTIN | 00036584175254 |