Kits consist of a blue printed billet 7075 hard anodized oil pump which is 50% harder and stronger than the factory pump and also holds a tighter tolerance under temperature The Race Series lifters are full .200" travel hydraulic lifter 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 Kits include a Race Series oil pump, Race Series lifters, high flow cam support plate, gaskets and O-rings; Note: Gear drive cams require block off plates 512-839