Comp Cams .842 Dia Grooving Tool JD Customs U.S.A These shoes aren't just about

These shoes aren't just about performance

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

You'll be using your existing hardware

Strategic 2mm foam padding on fingers for fit and comfort

Comp Cams .842 Dia Grooving Tool JD Customs U.S.A These shoes aren't just aboutLifter 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,