Product Description
Camshaft BBM
Cam Style: Hydraulic flat tappet
Camshaft Use: Street/Strip
Basic Operating RPM Range: 2,000-5,800
Intake Duration at 050 inch Lift: 227
Exhaust Duration at 050 inch Lift: 241
Duration at 050 inch Lift: 227 int./241 exh.
Advertised Intake Duration: 279
Advertised Exhaust Duration: 296
Advertised Duration: 279 int./296 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.486 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.473 in.
Valve Lift with Factory Rocker Arm Ratio: 0.486 int./0.473 exh.
Lobe Separation (degrees): 107
Camshaft Gear Attachment: 1-bolt
Remanufactured: No
Computer-Controlled Compatible: No
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.
