COMP Cams Cam Checking Tool

This innovative tool slides into the lifter bore and rides on the Camshaft to measure lobe lift and base circle runout. The tool includes two followers: one for Solid and hydraulic flat tappet cams and one for Roller cams. Built-in o-ring holds tool firmly in the lifter bore while a 1" travel dial indicator (not included) reads Cam lift to .001". Fits GM (.842" dia.) and Ford (.875" dia.) lifter bores. The COMP camhaft checking tool is designed to slide into the lifter bore and ride on the cam lobe. A dial indicator is then attached to the checking tool so that lobe lift and base circle runout can be measured. Fits .842" and .875" bores.