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, Ford Crossflow Solid, Adv. Duration 262/262, Valve Lift 0.554/0.554

Crow Cams Camshaft, Ford Crossflow Solid, Adv. Duration 262/262, Valve Lift 0.554/0.554

$643.50

COMP Cams Camshaft, Drag Race/Oval Track, Drag Race, Solid Roller, Advertised Duration 312/322, Lift .630/.630, For Chevrolet Small Block, Each

COMP Cams Camshaft, Drag Race/Oval Track, Drag Race, Solid Roller, Advertised Duration 312/322, Lift .630/.630, For Chevrolet Small Block, Each

$1,200.93

Crow Cams Camshaft, Holden 6cyl Solid, Adv. Duration 265/265, Valve Lift 0.442/0.442

Crow Cams Camshaft, Holden 6cyl Solid, Adv. Duration 265/265, Valve Lift 0.442/0.442

$643.50

Crow Cams FORD BA/FG 6 CYL TURBO INLET

Crow Cams FORD BA/FG 6 CYL TURBO INLET

$702.12

COMP Cams Cam / Lifters / Valvetrain Mutha' Thumpr Hydraulic Flat Advertised Duration 287 / 305

COMP Cams Cam / Lifters / Valvetrain Mutha' Thumpr Hydraulic Flat Advertised Duration 287 / 305

$1,195.29

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Hydraulic Roller Advertised Duration 264 / 27

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Hydraulic Roller Advertised Duration 264 / 27

$3,141.42