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
243/257 299/319 .552/.537 107
BIG MUTHA THUMPR Street/strip, rough idle, needs
9.5:1 compression, 2800+ converter, intake, gears and headers. Requires bronze
distributor gear. Power range S/B 2500-6400 B/B 2300-6200.