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Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.
| Years | Make | Model | Trim | ||
|---|---|---|---|---|---|
| 1987 - 1991 | Avanti | II | Base | ||
| 1991 - 1996 | Buick | Commercial Chassis | Base | ||
| 1991 - 1993 | Buick | Roadmaster | Estate Wagon | ||
| 1992 - 1993 | Buick | Roadmaster | Limited | ||
| 1992 - 1993 | Buick | Roadmaster | Base | ||
| 1990 - 1992 | Cadillac | Brougham | Base | ||
| 1992 - 1996 | Cadillac | Commercial Chassis | Brougham | ||
| 1994 - 1996 | Cadillac | Commercial Chassis | Base | ||
| 1993 - 1993 | Cadillac | Fleetwood | Brougham | ||
| 1993 - 1993 | Cadillac | Fleetwood | Base | ||
| 1987 - 1994 | Chevrolet | Blazer | Silverado | ||
| 1987 - 1987 | Chevrolet | Blazer | Custom Deluxe | ||
| 1988 - 1991 | Chevrolet | Blazer | Scottsdale | ||
| 1992 - 1993 | Chevrolet | Blazer | Cheyenne | ||
| 1994 - 1994 | Chevrolet | Blazer | Silverado Sport | ||
| 1994 - 1994 | Chevrolet | Blazer | Base | ||
| 1988 - 1995 | Chevrolet | C1500 | Silverado | ||
| 1988 - 1992 | Chevrolet | C1500 | Scottsdale | ||
| 1988 - 1995 | Chevrolet | C1500 | Cheyenne | ||
| 1990 - 1995 | Chevrolet | C1500 | WT | ||
| 1994 - 1995 | Chevrolet | C1500 | Base | ||
| 1992 - 1994 | Chevrolet | C1500 Suburban | Silverado | ||
| 1992 - 1995 | Chevrolet | C1500 Suburban | Base | ||
| 1995 - 1995 | Chevrolet | C1500 Suburban | LT | ||
| 1995 - 1995 | Chevrolet | C1500 Suburban | LS | ||
| 1988 - 1995 | Chevrolet | C2500 | Silverado | ||
| 1988 - 1992 | Chevrolet | C2500 | Scottsdale | ||
| 1988 - 1995 | Chevrolet | C2500 | Cheyenne | ||
| 1994 - 1995 | Chevrolet | C2500 | WT | ||
| 1994 - 1995 | Chevrolet | C2500 | Base | ||
| 1992 - 1994 | Chevrolet | C2500 Suburban | Silverado | ||
| 1992 - 1995 | Chevrolet | C2500 Suburban | Base | ||
| 1995 - 1995 | Chevrolet | C2500 Suburban | LT | ||
| 1995 - 1995 | Chevrolet | C2500 Suburban | LS | ||
| 1988 - 1995 | Chevrolet | C3500 | Silverado | ||
| 1988 - 1992 | Chevrolet | C3500 | Scottsdale | ||
| 1988 - 1995 | Chevrolet | C3500 | Cheyenne | ||
| 1994 - 1995 | Chevrolet | C3500 | Base | ||
| 1987 - 1987 | Chevrolet | Camaro | Z28 | ||
| 1987 - 1987 | Chevrolet | Camaro | Sport | ||
| 1987 - 1987 | Chevrolet | Camaro | LT | ||
| 1987 - 1990 | Chevrolet | Camaro | Iroc-Z | ||
| 1988 - 1988 | Chevrolet | Camaro | Base | ||
| 1989 - 1992 | Chevrolet | Camaro | RS | ||
| 1991 - 1992 | Chevrolet | Camaro | Z28 | ||
| 1992 - 1992 | Chevrolet | Camaro | Z28 Heritage Edition | ||
| 1992 - 1992 | Chevrolet | Camaro | RS Heritage Edition | ||
| 1987 - 1990 | Chevrolet | Caprice | Classic LS Brougham | ||
| 1987 - 1990 | Chevrolet | Caprice | Classic Brougham | ||
| 1987 - 1993 | Chevrolet | Caprice | Classic | ||
| 1987 - 1992 | Chevrolet | Caprice | Base | ||
| 1991 - 1993 | Chevrolet | Caprice | Classic LTZ | ||
| 1993 - 1993 | Chevrolet | Caprice | Classic LS | ||
| 1991 - 1994 | Chevrolet | Commercial Chassis | Base | ||
| 1987 - 1991 | Chevrolet | Corvette | Base | ||
| 1988 - 1988 | Chevrolet | Corvette | 35th Anniversary Edition | ||
| 1990 - 1991 | Chevrolet | Corvette | ZR-1 | ||
| 1987 - 1987 | Chevrolet | El Camino | SS | ||
| 1987 - 1987 | Chevrolet | El Camino | Base | ||
| 1998 - 1998 | Chevrolet | Express 1500 | Base | ||
| 1996 - 1996 | Chevrolet | Express 2500 | LS | ||
| 1998 - 1998 | Chevrolet | Express 3500 | Base | ||
| 1987 - 1995 | Chevrolet | G10 | Sportvan | ||
| 1987 - 1995 | Chevrolet | G10 | Chevy Van | ||
| 1987 - 1987 | Chevrolet | G10 | Bonaventure | ||
| 1987 - 1995 | Chevrolet | G10 | Beauville | ||
| 1987 - 1995 | Chevrolet | G20 | Sportvan | ||
| 1987 - 1995 | Chevrolet | G20 | Chevy Van | ||
| 1987 - 1995 | Chevrolet | G20 | Beauville | ||
| 1987 - 1996 | Chevrolet | G30 | Sportvan | ||
| 1987 - 1996 | Chevrolet | G30 | Hi-Cube | ||
| 1987 - 1996 | Chevrolet | G30 | Chevy Van | ||
| 1987 - 1996 | Chevrolet | G30 | Beauville | ||
| 1988 - 1995 | Chevrolet | K1500 | Silverado | ||
| 1988 - 1992 | Chevrolet | K1500 | Scottsdale | ||
| 1988 - 1995 | Chevrolet | K1500 | Cheyenne | ||
| 1990 - 1995 | Chevrolet | K1500 | WT | ||
| 1991 - 1991 | Chevrolet | K1500 | Sport | ||
| 1994 - 1995 | Chevrolet | K1500 | Base | ||
| 1992 - 1994 | Chevrolet | K1500 Suburban | Silverado | ||
| 1992 - 1995 | Chevrolet | K1500 Suburban | Base | ||
| 1995 - 1995 | Chevrolet | K1500 Suburban | LT | ||
| 1995 - 1995 | Chevrolet | K1500 Suburban | LS | ||
| 1988 - 1995 | Chevrolet | K2500 | Silverado | ||
| 1988 - 1992 | Chevrolet | K2500 | Scottsdale | ||
| 1988 - 1995 | Chevrolet | K2500 | Cheyenne | ||
| 1994 - 1995 | Chevrolet | K2500 | WT | ||
| 1994 - 1995 | Chevrolet | K2500 | Base | ||
| 1992 - 1994 | Chevrolet | K2500 Suburban | Silverado | ||
| 1992 - 1995 | Chevrolet | K2500 Suburban | Base | ||
| 1995 - 1995 | Chevrolet | K2500 Suburban | LT | ||
| 1995 - 1995 | Chevrolet | K2500 Suburban | LS | ||
| 1988 - 1995 | Chevrolet | K3500 | Silverado | ||
| 1988 - 1992 | Chevrolet | K3500 | Scottsdale | ||
| 1988 - 1995 | Chevrolet | K3500 | Cheyenne | ||
| 1994 - 1995 | Chevrolet | K3500 | Base | ||
| 1987 - 1988 | Chevrolet | Monte Carlo | SS | ||
| 1987 - 1988 | Chevrolet | Monte Carlo | LS | ||
| 1987 - 1988 | Chevrolet | Monte Carlo | Base | ||
| 1987 - 1989 | Chevrolet | P20 | Step-Van | ||
| 1987 - 1989 | Chevrolet | P20 | Base | ||
| 1987 - 1990 | Chevrolet | P30 | Step-Van | ||
| 1987 - 1998 | Chevrolet | P30 | Base | ||
| 1987 - 1987 | Chevrolet | R10 | Silverado | ||
| 1987 - 1987 | Chevrolet | R10 | Scottsdale | ||
| 1987 - 1987 | Chevrolet | R10 | Custom Deluxe | ||
| 1987 - 1988 | Chevrolet | R10 Suburban | Silverado | ||
| 1987 - 1988 | Chevrolet | R10 Suburban | Scottsdale | ||
| 1987 - 1987 | Chevrolet | R10 Suburban | Custom Deluxe | ||
| 1989 - 1991 | Chevrolet | R1500 Suburban | Silverado | ||
| 1989 - 1991 | Chevrolet | R1500 Suburban | Scottsdale | ||
| 1987 - 1988 | Chevrolet | R20 | Silverado | ||
| 1987 - 1988 | Chevrolet | R20 | Scottsdale | ||
| 1987 - 1988 | Chevrolet | R20 | Custom Deluxe | ||
| 1988 - 1988 | Chevrolet | R20 | Cheyenne | ||
| 1987 - 1988 | Chevrolet | R20 Suburban | Silverado | ||
| 1987 - 1988 | Chevrolet | R20 Suburban | Scottsdale | ||
| 1987 - 1987 | Chevrolet | R20 Suburban | Custom Deluxe | ||
| 1989 - 1991 | Chevrolet | R2500 Suburban | Silverado | ||
| 1989 - 1991 | Chevrolet | R2500 Suburban | Scottsdale | ||
| 1987 - 1988 | Chevrolet | R30 | Silverado | ||
| 1987 - 1988 | Chevrolet | R30 | Scottsdale | ||
| 1987 - 1988 | Chevrolet | R30 | Custom Deluxe | ||
| 1988 - 1988 | Chevrolet | R30 | Cheyenne | ||
| 1989 - 1991 | Chevrolet | R3500 | Silverado | ||
| 1989 - 1990 | Chevrolet | R3500 | Scottsdale | ||
| 1989 - 1991 | Chevrolet | R3500 | Cheyenne | ||
| 1995 - 1995 | Chevrolet | Tahoe | LT | ||
| 1995 - 1995 | Chevrolet | Tahoe | LS | ||
| 1995 - 1995 | Chevrolet | Tahoe | Base | ||
| 1987 - 1987 | Chevrolet | V10 | Silverado | ||
| 1987 - 1987 | Chevrolet | V10 | Scottsdale | ||
| 1987 - 1987 | Chevrolet | V10 | Custom Deluxe | ||
| 1987 - 1988 | Chevrolet | V10 Suburban | Silverado | ||
| 1987 - 1988 | Chevrolet | V10 Suburban | Scottsdale | ||
| 1987 - 1987 | Chevrolet | V10 Suburban | Custom Deluxe | ||
| 1989 - 1991 | Chevrolet | V1500 Suburban | Silverado | ||
| 1989 - 1991 | Chevrolet | V1500 Suburban | Scottsdale | ||
| 1987 - 1987 | Chevrolet | V20 | Silverado | ||
| 1987 - 1987 | Chevrolet | V20 | Scottsdale | ||
| 1987 - 1987 | Chevrolet | V20 | Custom Deluxe | ||
| 1987 - 1988 | Chevrolet | V20 Suburban | Silverado | ||
| 1987 - 1988 | Chevrolet | V20 Suburban | Scottsdale | ||
| 1987 - 1987 | Chevrolet | V20 Suburban | Custom Deluxe | ||
| 1989 - 1991 | Chevrolet | V2500 Suburban | Silverado | ||
| 1989 - 1991 | Chevrolet | V2500 Suburban | Scottsdale | ||
| 1987 - 1988 | Chevrolet | V30 | Silverado | ||
| 1987 - 1988 | Chevrolet | V30 | Scottsdale | ||
| 1987 - 1988 | Chevrolet | V30 | Custom Deluxe | ||
| 1988 - 1988 | Chevrolet | V30 | Cheyenne | ||
| 1989 - 1991 | Chevrolet | V3500 | Silverado | ||
| 1989 - 1990 | Chevrolet | V3500 | Scottsdale | ||
| 1989 - 1991 | Chevrolet | V3500 | Cheyenne | ||
| 1993 - 1993 | Excalibur | Limited | Base | ||
| 1987 - 1989 | Excalibur | Phaeton | Base | ||
| 1988 - 1995 | GMC | C1500 | Sierra SLE | ||
| 1988 - 1993 | GMC | C1500 | Sierra | ||
| 1988 - 1993 | GMC | C1500 | Sierra SLX | ||
| 1994 - 1995 | GMC | C1500 | Sierra SL | ||
| 1994 - 1995 | GMC | C1500 | Sierra SLT | ||
| 1994 - 1995 | GMC | C1500 | Sierra Special | ||
| 1992 - 1995 | GMC | C1500 Suburban | Base | ||
| 1992 - 1995 | GMC | C1500 Suburban | SLE | ||
| 1995 - 1995 | GMC | C1500 Suburban | SLT | ||
| 1988 - 1993 | GMC | C2500 | Sierra | ||
| 1988 - 1995 | GMC | C2500 | Sierra SLE | ||
| 1988 - 1993 | GMC | C2500 | Sierra SLX | ||
| 1994 - 1995 | GMC | C2500 | Sierra SL | ||
| 1994 - 1995 | GMC | C2500 | Sierra SLT | ||
| 1992 - 1995 | GMC | C2500 Suburban | Base | ||
| 1992 - 1995 | GMC | C2500 Suburban | SLE | ||
| 1995 - 1995 | GMC | C2500 Suburban | SLT | ||
| 1988 - 1993 | GMC | C3500 | Sierra | ||
| 1988 - 1995 | GMC | C3500 | Sierra SLE | ||
| 1988 - 1993 | GMC | C3500 | Sierra SLX | ||
| 1994 - 1995 | GMC | C3500 | Sierra SL | ||
| 1994 - 1995 | GMC | C3500 | Sierra SLT | ||
| 1987 - 1987 | GMC | Caballero | Base | ||
| 1987 - 1987 | GMC | Caballero | Diablo | ||
| 1987 - 1995 | GMC | G1500 | Rally | ||
| 1987 - 1995 | GMC | G1500 | Rally STX | ||
| 1987 - 1995 | GMC | G1500 | Vandura | ||
| 1987 - 1995 | GMC | G2500 | Rally | ||
| 1987 - 1995 | GMC | G2500 | Rally STX | ||
| 1987 - 1995 | GMC | G2500 | Vandura | ||
| 1987 - 1996 | GMC | G3500 | Magnavan | ||
| 1987 - 1996 | GMC | G3500 | Rally | ||
| 1987 - 1996 | GMC | G3500 | Rally Camper Special | ||
| 1987 - 1988 | GMC | G3500 | Rally Custom | ||
| 1987 - 1996 | GMC | G3500 | Rally STX | ||
| 1987 - 1996 | GMC | G3500 | Vandura | ||
| 1987 - 1996 | GMC | G3500 | Vandura Special | ||
| 1987 - 1991 | GMC | Jimmy | Base | ||
| 1987 - 1990 | GMC | Jimmy | Sierra Classic | ||
| 1988 - 1993 | GMC | K1500 | Sierra | ||
| 1988 - 1995 | GMC | K1500 | Sierra SLE | ||
| 1988 - 1993 | GMC | K1500 | Sierra SLX | ||
| 1994 - 1995 | GMC | K1500 | Sierra SL | ||
| 1994 - 1995 | GMC | K1500 | Sierra SLT | ||
| 1995 - 1995 | GMC | K1500 | Sierra SLS |
WARNING: Cancer & Reproductive Harm www.p65warnings.ca.govFor more information on COMP Cams part number 08-601-8, you can visit the official COMP Cams website.
