Race Series Standard Diameter Evo Lifters - One Size Weightlifting Shoes for CrossFit & Powerlifting - Perfect for Gym Training & Competition

Sold in a set of four. Available in oversize diameters. Maintains proper and critical oil flow to valves, springs, rockers, shafts and valve guides. Exceeds the needs of large-lift camshafts and higher spring pressures with a slower bleed-down rate. Full-travel hydraulic lifters made from machined steel. Increases engine RPM and valvetrain stability; decreases valve float for maximum valve lift. Recommended for both strip and performance street engines. Made in the U.S.A. NOTE: High volume oil pump recommended.