531'/.515' Thumpr Hydraulic Roller Camshaft Lift. small-block because the duration and LSA numbers are the same between those two engine families. 489'/.476' Duration 287/305 RPM Range 2200 to 6100 See more product details Free Shipping - Ships Today QTY Add To Cart Add to Wish List Share this product Buy in monthly payments with Affirm on orders over 50. Thumpr Series cam and lifter kits feature a cutting-edge hydraulic roller design that delivers a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance. Thumpr COMP Cams 10-600-11 Part Number: 249-10-600-11 COMP Cams Thumpr Hydraulic Roller Camshaft Lift. For folks looking for a hot performing camshaft that delivers great performance and wild camshaft idle, the Thumpr Cams could be the right call. Rat will idle better with the mild Thumpr cam than my 350 c.i.d. 274.95 2 left in stock Lowest Price Guarantee Mutha Thumpr Hydraulic Flat Tappet Camshaft Lift. Each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range. They are available in three different grind profiles. They're designed to maximize the rough-idling characteristics of the cams, giving you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. The lobe profile and grind characteristics of these Thumpr camshafts use a combination of an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap. They are designed for use in engines that were originally equipped with flat tappet camshafts. In an ongoing quest to provide you with the performance and sound that you demand, COMP Cams' engineering team proudly introduces the Thumpr Series hydraulic roller cam and lifter kits.

COMP Cams is bringing the musclecar sound back, and it's nastier than ever! Few things serve to grab our attention at a car show or cruise night more than a car with a thumping, high performance idle.

350 thumpr cam