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

COMP Cams Cam/Lifters/Timing, Magnum, Hydraulic Roller, Advertised Duration 304/304, Lift .600/.600, For Chevrolet Small Block, Kit

COMP Cams Cam/Lifters/Timing, Magnum, Hydraulic Roller, Advertised Duration 304/304, Lift .600/.600, For Chevrolet Small Block, Kit

$2,401.64

COMP Cams CAMSHAFT, CB 252AH-10

COMP Cams CAMSHAFT, CB 252AH-10

$574.72

Crow Cams Camshaft, LS Cam, Adv. Duration 271/284, Valve Lift 0.615/0.623

Crow Cams Camshaft, LS Cam, Adv. Duration 271/284, Valve Lift 0.615/0.623

$558.81

Crow Cams Camshaft, Holden V8 304/355 Roller Custom

Crow Cams Camshaft, Holden V8 304/355 Roller Custom

$1,033.03

COMP Cams Camshaft, High Energy, Hydraulic Flat, Advertised Duration 252/252, Lift .438/.438, For Buick 198-225 Odd Fire V6, Each

COMP Cams Camshaft, High Energy, Hydraulic Flat, Advertised Duration 252/252, Lift .438/.438, For Buick 198-225 Odd Fire V6, Each

$520.67

COMP Cams Camshaft, Drag Race, Solid Roller, Advertised Duration 324/332, Lift .775/ .748, For Chevrolet Big Block 396-454, Each

COMP Cams Camshaft, Drag Race, Solid Roller, Advertised Duration 324/332, Lift .775/ .748, For Chevrolet Big Block 396-454, Each

$1,077.45