The COMP Cams cam and lifter kit includes a camshaft, lifters, assembly lube, decals and instructions. The X4 278H profile offers good top-end power but requires an upgraded intake, headers and gears; it performs best with 9.5:1 compression and a 2500+ RPM stall converter, producing a more aggressive idle while delivering higher-rpm strength.
COMP Cams Cam & Lifter Kit FF X4 278H