





FEULING PARTS — Manufacturer Ref: 4019
Race Series® hydraulic lifters designed for high-performance engines running with high-lift camshafts and reinforced springs. These full-travel, machined steel lifters provide a lift of .200" and a slower bleed rate to maintain critical oil flow to the valves, springs, rockers, camshafts, and valve guides. Ideal for road/performance builds and vintage/classic machines equipped with large displacements.
Recommended for engines with a valve spring seat pressure exceeding 185 lb (84 kg). A high-volume oil pump is advised to ensure optimal lubrication. Before installation, check the clearance between the front exhaust lifter and the camshaft flange to avoid any interference.
These lifters are particularly suitable for powerful touring and custom builds — for example, on the large 1923ci Harleys mentioned in compatibility — and are manufactured in the United States to meet the demands of riders concerned about the reliability of their timing.