Camshaft, Comp Cams Thumpr, Mutha Thumpr, BBC, Hyd Roller

Camshaft, Comp Cams Thumpr, Mutha Thumpr, Big Block Chevy, Hyd Roller

Performance camshaft is configured for the stated engine, valvetrain and intended operating character.

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.

• Application: Comp Cams Thumpr, Mutha Thumpr, Big Block Chevy, Hyd Roller • Hyd Roller • Designed for muscle-car and street-machine applications • Performance camshaft application