Thumpr hydraulic flat tappet and roller camshafts are the hottest cam series to hit the streets in more than a decade. Street rodders and muscle car enthusiasts just cant get enough of the incredible exhaust sound and equally impressive performance delivered by these innovative camshafts. Applying a new camshaft design they incorporate early exhaust opening, long duration and a generous amount of intake and exhaust overlap to maximize your engines nasty-idle characteristics without negatively impacting power or street ability.
[email protected] [email protected] Gross/Lift Lobe/Sep
235/249 291/311 .540/.526 107
MUTHA THUMPR High performance street/strip, rough
idle, needs 9:1 compression, 2500+ converter, intake, gears and headers.
Requires bronze distributor gear. Power range S/B 2200-6100 B/B 2000-5900.