Thumpr Cam by Comp Cams
The Muscle-car sound is back and nastier than ever, Thumpr™ Cams deliver incredible exhaust lope and impressive performance
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 the CAM HELP® tech line is “what cam will give my engine a mean-sounding idle?” In response to this popular demand, the COMP Cams® engineering team proudly introduces the Thumpr™ series of camshafts.
The Thumpr™ Camshafts are a new series of hydraulic flat tappet designed for use in Small & Big Block Chevy, Ford 351 Windsor and Small Block Chrysler engines.
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.
Thumpr™ Camshafts are available in three different grind profiles for each engine, all of which will produce a rough, racy exhaust note and impressive amounts of horsepower and torque. Their cutting-edge design means that they will deliver a substantial power increase over "tamer" camshaft grinds without sacrificing reliability or ease of maintenance
This product is in the following categories:
Chrysler, Dodge, AMC, Jeep, Plymouth
Part #: 20-600-4
Small Block Chrysler 273-360, 1964-1992 (Long Snout) 279T H-107 Thumpr™ hydraulic Flat Tappet Cam. Thumpr™ - High performance street, stock converter ok, best with 2000+ converter & gears, choppy / thumping idle
Part #: 20-601-4
Small Block Chrysler 273-360, 1964-1992 (Long Snout) 287T H-107 Mutha Thumpr™ hydraulic Flat Tappet Cam. Mutha' Thumpr™ - High performance street/strip, needs 9:1 CR, 2500+ stall, intake, gears, and headers, rough idle
Part #: 20-602-4
Small Block Chrysler 273-360, 1964-1992 (Long Snout) 295T H-107 Big Mutha Thumpr™ hydraulic Flat Tappet Cam. Big Mutha' Thumpr™ - Street/strip, needs 9.5:1 CR , 2800+ stall, intake, gears, & headers, very rough idle