Feuling Race Series 521 Camchest Kit for 2017-2020 Harley M8 - Twin-Cooled

Product Description

Feuling Race Series Camchest kit with the 521 Reaper Cam for Twin-Cooled M8 engines. Kit requires high lift valve springs 0926-2973 or 0926-2974

Fits: 2017-2020 Harley M8 Twin-Cooled Motors

• Feuling®​ complete camchest kits include all necessary components from top to bottom of the camchest conveniently packaged under one part
• These combination kits not only ensure each individual part is designed to work and function together, but to do so in total harmony
• These camchest kits take the guess work out of the ordering process and provides the engine builder maximum reliability, peak performance and the coolest engine/oil temperatures obtainable
• Complete Camchest Kits include: Feuling® ​High Volume Oil pump, High Flow Camplate, Reaper®​ Series camshafts, hydraulic roller lifters, fixed length pushrods, Timken®​/Koyo®​ cam bearings, rocker arm studs/nuts, gaskets, O-rings, ARP®​ cam/crank fasteners, washers, moly paste and Loctite®
• Race Series® kits include a Race Series® oiling system (billet 7075 oil pump, Race Series® lifters, High Flow billet 7075 aluminum camplate)
• Billet 7075 aluminum oil pump, which is 50% harder and stronger than the factory pump, holding tighter tolerances under temperature, deeper scavenge kidneys over Fueling HP+ oil pump
• Deeper scavenge kidney ports over the HP+ series for even more scavenge flow volume
• Race Series® hydraulic lifters have a full .200" of total travel designed with a slower bleed down rate to handle heavy valve spring pressures, increase engine rpm before valve float and feature increased roller clearance for steep ramped camshafts and clearance for the M-Eight front exhaust camshaft lobe flange.
• 27% more pressure and scavenge gear volume over stock for M-Eight Oil-Cooled motors
• 42% more scavenge volume with port sizing, matched passages and holes to the engine case
• 68% more oil volume to the crankshaft and connecting rod bearing
• 15-25 degree cooler engine temperatures
• 15-30 degree cooler oil temperatures
• 10-30 more PSI of oil pressure
• Increase oil pressure, scavenge volume and engine oil flow
• Quieter and smoother engine operation
• Reduces wet sumping, blow by and oily air cleaners
• Magnets in oil pump to help protect gears and pressure relief valve
• Test results show 2 HP gain and 2 ft/lbs of TQ gain to the rear wheel on Milwaukee Eight
• Feuling test results show a 50% reduction of engine sump oil level
• Made in the U.S.A.

521 Cam

• Aggressive pulling power with a "nasty" sound, the Reaper 521 grind will shine in 114" and larger cubic inch engines with added compression ratio
• Requires high lift valve springs; see PART #0926-2973 or 0926-2974
• Stock throttle body produces an excellent powerband; use of a high-flow throttle body may increase peak power numbers
• 2250 - 6250 rpm range
• Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range
• A high-flow exhaust system and air cleaner is highly recommended for optimal performance
• Feuling recommends matching 521 cam with Race Series oiling system PART #0932-0199
• Heavy-duty one-piece pushrods are also highly recommended

DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES.