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Comp Cams Thumpr Flat Tappet Camshaft

Item #: COM21-602-5

Price: $309.99



Advertised Duration 295/312, Lift .507/.494

Cam Style: Hydraulic flat tappet

Basic Operating RPM Range: 2,500-6,400

Intake Duration at 050 inch Lift: 243

Exhaust Duration at 050 inch Lift: 257

Duration at 050 inch Lift: 243 int./257 exh.

Advertised Intake Duration: 295

Advertised Exhaust Duration: 312

Advertised Duration: 295 int./312 exh.

Intake Valve Lift with Factory Rocker Arm Ratio: 0.507 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.494 in.

Valve Lift with Factory Rocker Arm Ratio: 0.507 int./0.494 exh.

Lobe Separation (degrees): 107

Camshaft Gear Attachment: 1-bolt

Computer-Controlled Compatible: No

Grind Number: 295TH7

Valve Springs Required: Yes

Quantity: Sold individually.

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.