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 Camshaft, XFI, Hydraulic Roller, Advertised Duration 268/276, Lift .570/.565, GM LT1/LT4, Each

COMP Cams Camshaft, XFI, Hydraulic Roller, Advertised Duration 268/276, Lift .570/.565, GM LT1/LT4, Each

$1,083.98

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Solid Roller Cam Advertised Duration 280 / 28

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Solid Roller Cam Advertised Duration 280 / 28

$3,421.19

COMP Cams Cam / Lifters / Valvetrain Xtreme Marine Hydraulic Roller Advertised Duration 308 / 31

COMP Cams Cam / Lifters / Valvetrain Xtreme Marine Hydraulic Roller Advertised Duration 308 / 31

$3,051.80

COMP Cams Camshaft, Magnum/Drag Race, Hydraulic Flat Cam, Advertised Duration 305/305, Lift 0.54/0.54, For Ford 221-302, Each

COMP Cams Camshaft, Magnum/Drag Race, Hydraulic Flat Cam, Advertised Duration 305/305, Lift 0.54/0.54, For Ford 221-302, Each

$512.60

COMP Cams Camshaft, Tight Lash, Solid Flat, Advertised Duration 280/284, Lift .530/.540, For Chevrolet Small Block, Each

COMP Cams Camshaft, Tight Lash, Solid Flat, Advertised Duration 280/284, Lift .530/.540, For Chevrolet Small Block, Each

$672.11

COMP Cams Cam/Lifters/Timing, XE Computer Controlled, Hydraulic Flat, Advertised Duration 262/270, Lift .464/.470, For Chevrolet Small Block, Kit

COMP Cams Cam/Lifters/Timing, XE Computer Controlled, Hydraulic Flat, Advertised Duration 262/270, Lift .464/.470, For Chevrolet Small Block, Kit

$868.29