COMP Cams Grooving ToolS Lifter Bore 5011

COMP Cams Tools 5011 Lifter Bore Grooving Kit w/ .842" and .875" Tools The COMP lifter bore grooving tool cuts a groove into the lifter bore which ensures pressurized oil is fed between the lifter and camshaft. Developed by NASCAR engine builders, this tool reduces camshaft and lifter wear. CldrHd ResurfMachine