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

Crow Cams Camshaft, Ford Pre-Crossflow Hydraulic, Adv. Duration 213/213, Valve Lift 0.331/0.331

Crow Cams Camshaft, Ford Pre-Crossflow Hydraulic, Adv. Duration 213/213, Valve Lift 0.331/0.331

$430.77

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Hydraulic Flat Advertised Duration 250 / 260

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Hydraulic Flat Advertised Duration 250 / 260

$1,196.96

COMP Cams Cam/Lifters/Timing, Nitrous HP, Hydraulic Flat, Advertised Duration 262/280, Lift .462/.480, For Chevrolet Small Block, Kit

COMP Cams Cam/Lifters/Timing, Nitrous HP, Hydraulic Flat, Advertised Duration 262/280, Lift .462/.480, For Chevrolet Small Block, Kit

$893.54

COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller Cam, Advertised Duration 258/266, Lift .533/.544, For Ford 5.0L, Each

COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller Cam, Advertised Duration 258/266, Lift .533/.544, For Ford 5.0L, Each

$1,115.45

COMP Cams Cam / Lifters / Valvetrain High Energy / Marine Hydraulic Flat Advertised Duration 268

COMP Cams Cam / Lifters / Valvetrain High Energy / Marine Hydraulic Flat Advertised Duration 268

$1,053.22

COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 288/300, Lift .660/.630, For Chevrolet Small Block, Each

COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 288/300, Lift .660/.630, For Chevrolet Small Block, Each

$1,108.73