Feuling tappet set, Race Series. STD Race. OD +.001"

Comes with .200" standard stroke.
Oversized diameter (0.843" - 0.8435"), standard size of 0.8420" to 0.8423" OD.
The FEULING RACE series lifters for M8 engines have a relief machined into the lower body to clear the front exhaust lobe flange of the camshaft on grinds with smaller than stock base circles. These FEULING RACE SERIES lifters are full-travel hydraulic, machined from a cold forged steel body and designed to exceed the demands of higher lift camshafts and higher valve spring pressures, with a slower bleed rate. RACE SERIES lifters maintain proper oil flow to the top end, increase engine RPM, valvetrain stability, decreasing valve float and promoting maximum valve lift.
Due to the unstable nature of this 4-valve engine design with 1 rocker activating 2 valve springs, Feuling strongly recommends using these lifters on M8 engines with higher-lift camshafts and valve spring seat pressures above stock. This lifter will help reduce valve train separation and can result in a quieter, better-running engine. The Race Series lifters are compatible with OE+, HP+, Race Series and stock oil pumps, and are designed for use in both street and race engines. Developed on the Spin-Tron dyno and track proven, made in the USA.
• Precision ground needle bearings with high-chrome steel axle for long service life and minimal friction • Extra-long plunger, cold forged, precision ground and fitted for controlled bleeding and pumping • High-flow, quick-response disc check valve for better response at higher RPM.
• Available in oversize diameters – Box-end savings!
• Recommended for both high-performance track and street engines • Sold in sets of 4 • Made in the USA
¹ M8 engines must check the front exhaust lifter clearance with the camshaft flange
*FEULING RECOMMENDS PUMPING EACH TAPPET BY HAND DURING INSTALLATION, TO REMOVE ALL AIR AND PROVIDE A FULLY PUMPED-UP TAPPET. USING LOW VISCOSITY OIL SUCH AS ATF IN A SPRAY BOTTLE WORKS WELL.
See the Feuling 588060 tool to check the tappet bore diameters


Specifications


Brand
Feuling


Application
99-17 (NU) Twin Cam; 17-26 M8; 00-22 (NU) XL; 08-12 (NU) XR1200; 00-10 (NU) Buell XB


Sales unit
Kit


Packaging weight
0.565 kg


HS Code
84099100


Motorcycle family
DYNA, SOFTAIL, SPORTSTER, TOURING, TRIKE


Original name
Feuling, Race Series tappet set. STD travel. +.001" OD