FEULING OIL PUMP CORP. Lifters - Race Series? - Twin Cam 4052

Lifters - Race Series® - Twin Cam Full-travel hydraulic lifters made from machined steel designed with .200" of travel, Exceed the needs of large-lift camshafts and higher spring pressures with a slower bleed-down rate, Maintain proper and critical oil flow to valves, springs, rockers, shafts and valve guides, 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., High-volume oil pump recommended., Recommended for engines running higher than 185 lb (84 kg) valve spring seat pressure.