Innovative new camshaft series delivers unrivaled high performance sound and idle quality, yet produces impressive performance gains

Let’s face it, few things serve to grab our attention at a car show or cruise night more than a car with a thumping, high performance idle. In fact, one of the most frequent questions fielded when customers call our CAM HELP® tech line is “what camshaft will give my car that mean-sounding idle?” In their ongoing quest to provide customers with the performance that they demand, the COMP Cams® engineering team proudly introduces the Thumpr™ series of camshafts.

The Thumpr™ camshafts are a new series of retro-fit hydraulic roller camshafts designed for use in 1955-1998 262-400 cubic inch Small Block Chevrolet engines that were originally equipped with flat tappet camshafts. The reason that the new Thumpr™ Camshafts have such an aggressive exhaust note is that the lobe profiles and grind characteristics chosen by the COMP Cams® engineers produce 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 without negatively impacting the power output or streetability of the engine.

Thumpr™ Camshafts are available in three different grind profiles, each one of which will produce a rough, racy exhaust note and impressive amounts of horsepower and torque at a different rpm range. Their cutting-edge hydraulic roller design means that they will deliver a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance. So look no further than the  Thumpr™ line of camshafts -engineered to deliver that much sought-after ”thumping” idle quality to Small Block Chevy owners everywhere. For more information about the COMP Cams® Thumpr™ Small Block Chevrolet Retro-Fit Hydraulic Roller Camshafts or any other COMP Cams® product, call us at 1-800-999-0853, or visit them online at http://www.compcams.com/.