Pontiac V8 Hyd Roller Camshaft Thumpr Series

The COMP Cams Pontiac V8 Hydraulic Roller Camshaft Thumpr Series is designed for automotive enthusiasts seeking a distinctive and aggressive idle character while ensuring reliability and drivability. This camshaft profile provides the iconic "lumpier" idle that is characteristic of street performance builds, merging traditional Pontiac V8 geometry with modern roller cam technology.

This hydraulic roller camshaft utilizes precision roller lifters that minimize friction and wear compared to flat-tappet designs, significantly extending the lifespan of both the cam and lifters. The "Thumpr" profile is engineered with specific lobe separation angles and lift curves to create a pronounced intake and exhaust timing overlap, resulting in a choppy idle sound while optimizing mid-range torque for both street and strip applications.

Ideal for Pontiac V8 applications, this camshaft delivers an aggressive personality without necessitating a complete top-end overhaul or the use of exotic fuels. COMP Cams' stringent manufacturing standards ensure that each lobe is ground with tight tolerances, and the hardened steel construction is capable of withstanding high RPM operation and aggressive valve spring pressures without accelerated wear.