COMP Cams CL11-602-8 Big Mutha'Thumpr 243/257 Hydraulic Roller Cam/Lifter Kit Chevy Big Block 396-454

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COMP Cams CL11-602-8 Big Mutha'Thumpr 243/257 Features

• Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

• 2,500-6,100 RPM Operating Range

• 243/257 Duration at .050". 107 Degree Lobe Separation Angle. 0.570"/0.554" Valve Lift

• CL Kits include a camshaft, a set of lifters and instructions.

• Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note. Best with aftermarket converters and more rear gear.

• Perfect choice for muscle cars and street rods - Three unique cam designs: Thumpr, Mutha' Thumpr and Big Mutha' Thumpr deliver excellent horsepower gains and broad torque curve.

• Fits Chevrolet 396-454 Mark IV Big Block

• Made in USA

About COMP Cams CL11-602-8 Big Mutha'Thumpr 243/257

Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.