COMP Cams Mutha' Thumpr Hydraulic Roller Camshaft - 107 LSA - Big Block Chevy 28120BK LIABILITY LIMITATION:

LIABILITY LIMITATION:

E40D / 4R100

yet comfortable feel while a driver sits in the car

How to Rebuild New Hemi Engines

COMP Cams Mutha' Thumpr Hydraulic Roller Camshaft - 107 LSA - Big Block Chevy 28120BK LIABILITY LIMITATION: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