COMP Cams is bringing the musclecar sound back, and it's nastier than ever! Few things grab our attention at a car show or cruise-in like a thumping, high performance idle. In fact, one of the most frequent questions from customers is, "What camshaft will give my car that mean-sounding idle?" For the performance and sound you demand, COMP Cams engineers introduce the Thumpr camshafts—a new series of hydraulic flat tappet cams. The lobe profile and grind characteristics of Thumprs use a combination of early exhaust valve opening, long exhaust duration, and a generous amount of intake and exhaust overlap—to maximize the rough-idling characteristics of the cams. They give you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. Thumpr camshafts are available in several grind profiles; each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range.

More From This Category

Crow Cams Camshaft, Chev Big Block Solid Roller, Adv. Duration 322/332, Valve Lift 0.74/0.75

Crow Cams Camshaft, Chev Big Block Solid Roller, Adv. Duration 322/332, Valve Lift 0.74/0.75

$839.33

COMP Cams Cam/Lifters/Timing, Nitrous HP, Hydraulic Flat, Advertised Duration 256/268, Lift .434/.464, For Chevrolet Small Block, Kit

COMP Cams Cam/Lifters/Timing, Nitrous HP, Hydraulic Flat, Advertised Duration 256/268, Lift .434/.464, For Chevrolet Small Block, Kit

$859.87

COMP Cams Cam/Lifters/Timing, Blower and Turbo, Solid Flat, Advertised Duration 290/304, Lift .612/.605, For Chevrolet Big Block 396-454, Kit

COMP Cams Cam/Lifters/Timing, Blower and Turbo, Solid Flat, Advertised Duration 290/304, Lift .612/.605, For Chevrolet Big Block 396-454, Kit

$903.39

COMP Cams Cam/Lifters/Timing, Xtreme 4x4, Hydraulic Flat, Advertised Duration 254/262, Lift .505/.505, For Chevrolet Big Block 396-454, Kit

COMP Cams Cam/Lifters/Timing, Xtreme 4x4, Hydraulic Flat, Advertised Duration 254/262, Lift .505/.505, For Chevrolet Big Block 396-454, Kit

$865.24

Crow Cams Camshaft GM V6 Alloytec Left Hand Intake (LFW,LFX)

Crow Cams Camshaft GM V6 Alloytec Left Hand Intake (LFW,LFX)

$226.85

COMP Cams Cam / Lifters / Valvetrain Magnum Hydraulic Roller Advertised Duration 304 / 304 Lift

COMP Cams Cam / Lifters / Valvetrain Magnum Hydraulic Roller Advertised Duration 304 / 304 Lift

$3,140.40