Comp Cams .842 Dia Grooving Tool JD Customs U.S.A Test-fit before final tightening to

Test-fit before final tightening to ensure alignment with the door panel and glass clearance

These shoes aren't just about performance

Factory mounting points - No drilling or modification

These are ABS-compatible and designed to integrate with factory anti-lock brake systems without modification or sensor work

You'll be using your existing hardware

Comp Cams .842 Dia Grooving Tool JD Customs U.S.A Test-fit before final tightening toLifter Bore Grooving Kit; . 842" Dia (Std. Chevy Dia.) Developed by one of the top NASCAR engine builders, this innovative tool precisely grooves the lifter bore to ensure the pressure fed oil is directly injected into the contact area between lifter and camshaft. This increased oiling significantly reduces wear on the camshaft and lifters and decreases the risk of premature failure during break in. This machine operations to the block is quick, easy,