Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
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.
- 3 Grinds To Fit All Of Your Performance Needs
- Unique Design
- Maximizes Sound And Mid To High RPM Power
- Ensures Safe Piston-To-Valve Clearance
- Proven To Generate 25+ RWHP Gains
- Does Not Compromise Durability
- 1 Year Limited Warranty
Application Summary:
| Year |
Make/Model |
| 1996-2000 |
Chevrolet C2500 |
| 1996-1999 |
Chevrolet C2500 Suburban |
| 1996-2000 |
Chevrolet C3500 |
| 1996-2000 |
Chevrolet Express 3500 |
| 1996 |
Chevrolet G30 |
| 1996-2000 |
Chevrolet K2500 |
| 1996-1999 |
Chevrolet K2500 Suburban |
| 1996-2000 |
Chevrolet K3500 |
| 1996-1999 |
Chevrolet P30 |
| 1996-2000 |
GMC C2500 |
| 1996-1999 |
GMC C2500 Suburban |
| 1996-2000 |
GMC C3500 |
| 1996 |
GMC G3500 |
| 1996-2000 |
GMC K2500 |
| 1996-1999 |
GMC K2500 Suburban |
| 1996-2000 |
GMC K3500 |
| 1996-1999 |
GMC P3500 |
| 1996-2000 |
GMC Savana 3500 |
