Feuling HP+ Oiling System For Harley Oil Cooled M8 Oil is the life blood of your engine! The Feuling oiling system kits combine all the needed components to finish your Oil Cooled Milwaukee Eight engine's oiling system under 1 part number. The oiling system kit increases oil pressure, oil volume, engine oil flow and return oil scavenging, eliminating wet sumping and oily air cleaners. Test results show 15-25 degree cooler engine temperatures, 15-30 degree cooler oil temperatures, 10-30 more pounds of oil pressure and quieter, smoother engine operation. Results also show a substantial increase of oil pressure and around 2 HP and 2 Ft. Lbs of torque to the rear wheel. Features: Includes 6061 aluminum high volume oil pump, high flow cam plate, HP+ Hydraulic roller lifters, cam installation kit, cam bearing, cam/crank bolts, washers and assembly lube Increases oil flow and volume by enlarging the oil pump reservoirs and critical oil passages Precisely matches the oil port holes throughout the camplate to the port holes in the engine case which increase engine oil flow to the lifters, piston cooling jets, crankshaft and rod bearings HP+ billet cam plates have increased rigidity and are machined to tighter tolerances compared to stock Made in the USA