4017 Race Series Full Travel Hydraulic Lifters Harley Davidson FLDE 1750 2018 2020 0.8420 0.8423"

Features: 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 USA. High-volume oil pump recommended.. Recommended for engines running higher than 185 lb (84 kg) valve spring seat pressure.. Due to the unstable nature of this 4 valve engine design with 1 rocker arm activating 2 valvesprings Feuling® highly recommends the use of these lifters for M8 engines running a higher lift cam and especially when using higher pressure valvesprings. Must check clearance on front exhaust lifter to camshaft flange fit..