Comp Cams Thumpr™ Retro-Fit Hydraulic Roller Camshafts for SB Chevy
The Muscle-car sound is back and nastier than ever, Thumpr™ Cams deliver incredible exhaust lope and impressive performance for your Small Block Chevy
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 Northern Auto Parts or the CAM HELP® tech line is “what camshaft will give my car that mean-sounding idle?” In Comps 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.
Thumpr™ Small Block Chevy Retro-Fit Hyd. Roller Cams
Retro-fit hydraulic roller design will fit all factory flat tappet equipped Small Block Chevys
3 grinds to fit all of your cruising and street performance needs
Long exhaust duration and other grind characteristics produce a powerful, hard-hitting exhaust note
Excellent horsepower gains and broad torque curve deliver real seat of the pants performance
Designed for use with the latest in valve train component advancements such as Beehive™ Valve Springs, Pro Magnum™ Roller Rockers and Magnum Pushrods
