Feuling - Race Series® 521 Camchest Kit fits '17-Up M8 Oil-Cooled Motors

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Feuling - Race Series® 521 Camchest Kit fits '17-Up M8 Oil-Cooled Motors

Please note this kit requires high lift valve springs PART #'s 0926-2973 or 0926-2974 (See "Also Bought" Tab).


  • Quieter and smoother engine operation
  • Increase oil pressure, scavenge volume and engine oil flow
  • 15-35 degree cooler engine temperatures
  • 15-30 degree cooler oil temperatures
  • 15-30 more PSI of oil pressure
  • Eliminate wet sumping, blow by and oily air cleaners
  • Heavy duty .165" wall one piece pushrods reduce valvetrain harmonics and increase valve lift
  • Kits include: Feuling High Volume Oil pump, High Flow billet Camplate, Reaper series camshaft, hydraulic roller lifters, fixed length pushrods, Timken/Koyo cam bearing, rocker arm studs and nuts, gaskets, O-rings, ARP® cam/crank fasteners, washers, moly lube and Loctite®
  • Responds well with slip-on mufflers and/or a complete exhaust system and high-flow air cleaner
  • Responds well with increased bore and/or compression
  • Made in the U.S.A.

Race Series® Camchest Kit:

-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 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 Milwaukee Eight front exhaust camshaft lobe flange.

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. Ported cylinder heads are not required but will complement the cam and add even more pulling power throughout the range. The stock throttle body produces an excellent powerband and use of a high flow throttle body will increase peak power numbers. A high flow exhaust system and air cleaner is highly recommended for optimal performance.


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