Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The COMP Cams Big Mutha' Thumpr 243/257 flat cam GK-kit is tailored for Ford 351W applications and built for aggressive street/strip power. It typically needs about 9.5:1 compression and a 2,800+ rpm converter stall, and benefits from intake, gearing and header upgrades. Expect a very rough idle; plan supporting driveline changes to use this cam effectively.
COMP Cams Camshaft Kit FW 295T H-107 BM
