Musclecar sound is back and nastier than ever with these Thumpr retrofit hydraulic roller cam and lifter kits from COMP Cams! These cams feature a thumping high performance idle and provide significant horsepower and torque increases. Specially engineered profiles are offered for each unique engine, providing the perfect combination of an early intake valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap to maximize your engine's nasty-idling characteristics without negatively impacting streetability. These kits include high-quality matched lifters for unbeatable performance, durability, and ease of installation.

More From This Category

Crow Cams Camshaft, Chev Big Block Hydraulic, Adv. Duration 290/290, Valve Lift 0.524/0.524

Crow Cams Camshaft, Chev Big Block Hydraulic, Adv. Duration 290/290, Valve Lift 0.524/0.524

$415.91

Crow Cams Camshaft, LS Cam, Adv. Duration 281/287, Valve Lift 0.613/0.613

Crow Cams Camshaft, LS Cam, Adv. Duration 281/287, Valve Lift 0.613/0.613

$530.87

COMP Cams Camshaft, Magnum, Hydraulic Flat, Advertised Duration 292/292, Lift .518/.518, For Oldsmobile 260-455, Each

COMP Cams Camshaft, Magnum, Hydraulic Flat, Advertised Duration 292/292, Lift .518/.518, For Oldsmobile 260-455, Each

$505.35

COMP Cams Camshaft, Oval Track, Solid Flat, Advertised Duration 290/300, Lift .558/.549, For Chevrolet Small Block, Each

COMP Cams Camshaft, Oval Track, Solid Flat, Advertised Duration 290/300, Lift .558/.549, For Chevrolet Small Block, Each

$651.75

COMP Cams Camshaft, High Energy, Hydraulic Flat, Advertised Duration 268/268, Lift .494/.494, For Ford 352-428, Each

COMP Cams Camshaft, High Energy, Hydraulic Flat, Advertised Duration 268/268, Lift .494/.494, For Ford 352-428, Each

$528.71