COMP Cams has awakened the musclecar sound--and it's nastier than ever! Introducing Thumpr Series cam and lifter kits, a line of cutting-edge hydraulic roller camshafts for engines originally equipped with flat tappet cams. You can expect a substantial power increase without sacrificing reliability or ease of maintenance! The lobe profile and grind characteristics of new 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 impacting 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 Xtreme Energy Hydraulic Flat Cam Advertised Duration 250 /

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Hydraulic Flat Cam Advertised Duration 250 /

$1,104.73

COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller, Advertised Duration 270/276, Lift .510/.510, GM 8100/8.1L, Each

COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller, Advertised Duration 270/276, Lift .510/.510, GM 8100/8.1L, Each

$955.99

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

$530.87

COMP Cams Camshaft, High Energy, Solid, Advertised Duration 260/260, Lift .440/.440, For Toyota 20R/22R 4 Cylinder, Each

COMP Cams Camshaft, High Energy, Solid, Advertised Duration 260/260, Lift .440/.440, For Toyota 20R/22R 4 Cylinder, Each

$770.11

COMP Cams Camshaft, Nostaglia, Solid Flat Cam, Advertised Duration 262/269, Lift 0.495/0.495, For Ford 221-302, Each

COMP Cams Camshaft, Nostaglia, Solid Flat Cam, Advertised Duration 262/269, Lift 0.495/0.495, For Ford 221-302, Each

$573.26

COMP Cams Camshaft, Oval Track, Solid Flat, Advertised Duration 285/295, Lift .568/.592, For Ford 351W, Each

COMP Cams Camshaft, Oval Track, Solid Flat, Advertised Duration 285/295, Lift .568/.592, For Ford 351W, Each

$672.11