Oil pump increases horsepower by decreasing drag on the flywheels and other rotating parts CNC-machined to exact tolerances for the most durable, strong and wear-resistant performance Feed and return gears are individually matched to each body Increases oil return volume over stock pumps OEM-type black wrinkle finish Cover not included Pump only, no hardware Includes pump body, gears, shaft and plugs Made in the U.S.A.. BILLET OIL PUMP 73-91 BT