COMP Cams has awakened the muscle car sound--and it is nastier than ever! Thumpr Series camshafts is a line of cutting-edge hydraulic roller camshafts for engines originally equipped with flat tappet cams. With them, you can expect a substantial power increase without sacrificing reliability or ease of maintenance! The lobe profile and grind characteristics of Thumpr cams include blending an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap. This maximizes rough-idling tendencies, delivering a seriously aggressive exhaust note without affecting engine power output. Thumpr camshafts are available in a variety of grind profiles, each producing impressive horsepower and torque performance within a different rpm range.

More From This Category

COMP Cams Camshaft, Magnum, Solid Roller, Advertised Duration 288/288, Lift .623/.623, 351C, 351M-400M, Each

COMP Cams Camshaft, Magnum, Solid Roller, Advertised Duration 288/288, Lift .623/.623, 351C, 351M-400M, Each

$1,073.39

COMP Cams Camshaft, Magnum, Hydraulic Roller Cam, Advertised Duration 280/280, Lift 0.56/0.56, For Ford 5.0L, Each

COMP Cams Camshaft, Magnum, Hydraulic Roller Cam, Advertised Duration 280/280, Lift 0.56/0.56, For Ford 5.0L, Each

$1,115.45