Feuling FE-4017 Race Series Lifters for Twin Cam 99-17/Sportster/Buell 00-21/Milwaukee-Eight 17-Up

FEULING® RACE SERIES® lifters are full travel hydraulics, machined from a cold forged steel body and designed to exceed the needs of larger lift camshafts and higher valve spring pressures with a slower bleed down rate. RACE SERIES® lifters maintain proper oil flow to the top end, increase engine RPM, valve-train stability, decreasing valve float promoting maximum valve lift.

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 Milwaukee Eight engines running a higher lift cam and especially when using higher pressure valvesprings. These lifters will help reduce valve• train separation and can result in a quieter, better performing engine. Race Series® lifters are compatible with FEULING® OE+, HP+® or Race Series® and factory oil pumps. Designed for use with both street and strip engines. Spin-Tron dyno developed and track proven, Made in the USA.

• Precision ground needle roller bearing with high chromium steel axle for long life and minimal friction
• Cold forged extra long piston, precision ground and fitted for controlled leak down and pump up
• High flow disc style quick reacting check valve for better reaction at higher RPM.
• Available in oversized diameters – Case Savers! #4018 or #4019
• Recommended for engines with higher valvespring pressures and/or aggressive camshafts. Can also be used in stock applications as a premium replacement.
• Relief machined into the lower body to clear the flange on the camshaft front exhaust lobe on grinds using smaller than stock base circles
• Sold in sets of 4 (See 4017• 1 for singles)
• Made in the U.S.A.

*FEULING® RECOMMENDS PUMPING UP EACH LIFTER BY HAND DURING 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. SEE TOOL #9005

*PROPER LIFTER BORE TO LIFTER CLEARANCE IS CRUCIAL FOR OPERATION. SEE TOOL #9004

Fits: Milwaukee Eight '17-'26, T/C '99 - '17, XL And Buell '00 - '22, Performance upgrade, drop in replacement, set of 4