Bulletproof your engine with maximum reliability. Kit includes Race Series oiling system: billet 7075 oil pump, Race Series lifters and High Flow billet aluminum camplate. Oil pump is 50% harder and stronger than the factory pump, holds tighter tolerances under temperature. Race Series hydraulic lifters have a full .200in. of total travel designed with slower bleed-down rate to handle heavy valve spring pressures, increase engine rpm before vavle float and feature increased roller clearance for steep-ramped camshafts and clearance for the M-Eight front exhaust camshaft lobe flange. Quieter and smoother engine operation. Increase oil pressure, scavenge volume and engine oil flow. 15-25 degree cooler engine temperatures. 15-30 degree cooler oil temperatures. 10-30 more PSI of oil pressure. Eliminate wet sumping, blow by and oily air cleaners. Heavy duty .165in. wall one piece pushrods reduce valvetrain harmonics and increase valve lift. High-flow air cleaner and triple stepped exhaust pipe highly recommended. High lift high load valve springs are required. RPM range 2850-6250. Made in the u. s. a.