COMP Cams 4902 Camshaft Checking Fixture, Each

COMP Cams Cam Checking Fixture, Cylinder Heads ON Engine. This tool screws into any 1/4 -20 valve cover bolt hole and with the use of a dial indicator (not included), allows you to measure cam lift at the rocker arm, pushrod or lifter. This multi-functional tool can also be used to check rocker ratio, piston-to-valve clearance and even crankshaft end play.