LIFTERS RACE OS .8435 TC

Made in the U.S.A. High-flow disc-style quick-reacting check valve for better reaction at higher RPM Feuling® recommends pumping up each lifter by hand prior to installation, to remove all air and provide a fully pumped up lifter. Use of a thin weight oil like ATF in a squirt can works well. Maintain proper oil flow to the top end, increase engine RPM, valve-train stability, decreasing valve float promoting maximum valve lift Spin-Tron dyno developed and track proven Compatible with either Feuling® HP+® or Race Series® oil pumps and are designed for use with both street and strip engines Feuling® recommends the use of a high volume oil pump which will result in quieter, better performing lifters. Travel reduction reduces the amount of oil that is required to fill the inside of the lifter which reduces oil aeration inside the lifter on steep, fast action high lift camshaft lobes Increases RPM by decreasing valve float and valve-train harmonics while maintaining a quiet engine Precision ground needle roller bearing with high chromium steel axle for long life and minimal friction Feuling® recommends Race Series® lifters for engines running higher than 185 lb (84 kg) valve spring seat pressure. Machined from a steel body and designed to exceed the needs of large lift camshafts and higher valve spring pressures with a slower bleed down rate Short travel lifters should be set with 0.065" - 0.070" of pre-load and with the normal engine growth from heat will put the operating lifter pre load at or around half travel When oil aeration is present inside the lifter, the pushrod seat drops when the lifter rolls onto the front cam lobe ramp after squeezing the aeration down thus creating a noisy poor performing lifter New revolutionary design with 0.115" of total travel vs. a full travel lifter with 0.200"