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 Cam / Lifters / Valvetrain Thumpr Hydraulic Flat Advertised Duration 279 / 296 Lift .4

COMP Cams Cam / Lifters / Valvetrain Thumpr Hydraulic Flat Advertised Duration 279 / 296 Lift .4

$1,356.64

COMP Cams Camshaft, Magnum, Solid Flat Cam, Advertised Duration 270/270, Lift 0.499/0.499, For Ford 221-302, Each

COMP Cams Camshaft, Magnum, Solid Flat Cam, Advertised Duration 270/270, Lift 0.499/0.499, For Ford 221-302, Each

$602.88

COMP Cams Camshaft, Big Mutha' Thumpr, Hydraulic Flat, Advertised Duration 295/313, Lift .501/.486, For Pontiac 265-455, Each

COMP Cams Camshaft, Big Mutha' Thumpr, Hydraulic Flat, Advertised Duration 295/313, Lift .501/.486, For Pontiac 265-455, Each

$691.63

COMP Cams Cam / Lifters / Valvetrain Magnum Solid Roller Cam Advertised Duration 288 / 288 Lift

COMP Cams Cam / Lifters / Valvetrain Magnum Solid Roller Cam Advertised Duration 288 / 288 Lift

$3,192.35

COMP Cams Cam/Lifters/Timing, Xtreme Energy, Hydraulic Flat Cam, Advertised Duration 268/280, Lift .477/.48, For Chrysler 273-360

COMP Cams Cam/Lifters/Timing, Xtreme Energy, Hydraulic Flat Cam, Advertised Duration 268/280, Lift .477/.48, For Chrysler 273-360

$713.77

COMP Cams Cam/Lifters/Timing, Oval Track, Solid Flat, Advertised Duration 320/324, Lift .638/.656, For Chevrolet Small Block, Kit

COMP Cams Cam/Lifters/Timing, Oval Track, Solid Flat, Advertised Duration 320/324, Lift .638/.656, For Chevrolet Small Block, Kit

$929.85