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, Xtreme Energy, Hydraulic Flat, Advertised Duration 250/260, Lift .432/.444, For Chevrolet Small Block, Each

COMP Cams Camshaft, Xtreme Energy, Hydraulic Flat, Advertised Duration 250/260, Lift .432/.444, For Chevrolet Small Block, Each

$460.97

COMP Cams Camshaft, Computer Control/Blower/Turbo, Hydraulic Flat, Advertised Duration 260/268, Lift .444/.444, For Chevrolet Small Block, Each

COMP Cams Camshaft, Computer Control/Blower/Turbo, Hydraulic Flat, Advertised Duration 260/268, Lift .444/.444, For Chevrolet Small Block, Each

$585.66

COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller Cam, Advertised Duration 291/297, Lift .516/.534, AMC 290-401, Each

COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller Cam, Advertised Duration 291/297, Lift .516/.534, AMC 290-401, Each

$1,213.73

COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 296/300, Lift .630/.630, For Chevrolet Small Block, Each

COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 296/300, Lift .630/.630, For Chevrolet Small Block, Each

$1,108.73

COMP Cams Camshaft, XE Computer Controlled, Hydraulic Roller, Advertised Duration 271/279, Lift .591/.601, For Chevrolet Big Block, Each

COMP Cams Camshaft, XE Computer Controlled, Hydraulic Roller, Advertised Duration 271/279, Lift .591/.601, For Chevrolet Big Block, Each

$1,115.45

COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 279/283, Lift .645/.645, For Chevrolet Small Block, Each

COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 279/283, Lift .645/.645, For Chevrolet Small Block, Each

$1,108.73