Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The COMP Cams Classic Mutha' Thumpr hydraulic flat tappet cam for Buick 364, 401 and 425 Nailhead engines is a street/strip profile that requires supporting modifications: about 9:1 compression, a 2,500+ rpm stall converter, upgraded intake, gears and headers. It produces very rough idle and is intended for high-torque street/strip use; head work is recommended to raise the engine's RPM capability.
COMP Cams Camshaft 364-425 287T H-107 T
