If you're serious about building the ultimate wet sump system, Moroso Racing Oil Pumps are the only way to go! The nation's top engine builders rely on Moroso Oil Pumps because of their superior design and ability to provide a smooth and consistent flow of oil at higher engine speeds. Stock and so-called "race" pumps offered by others are not equipped to handle the higher oil flow at race speeds. As oil velocity increases, other pump designs cavitate and chatter because they just can't handle the extra demand. Moroso Racing Pumps are specifically engineered to accommodate the oil flow required by consistently higher engine speeds. Special anti-cavitation slots, feeder grooves and an enlarged bypass area are machined into the housing to bleed oil back to the inlet side of the pump. These features combine to offer a smooth and consistent flow of oil, which improves the pump's overall performance, extends engine life, and places an even loading on the distributor shaft to eliminate spark scatter. You can't beat a Moroso Oil Pump for precision! These pumps are manufactured using a proprietary casting process that offers superior durability and reliability characteristics. The pump body and cover assembly are manufactured to exact design specifications. Gear and inner rotor shaft assemblies are matched to maintain absolute minimum clearances and provide maximum volumetric efficiency. and each and every Moroso Racing Oil Pump is 100% pressure tested to stringent quality control specifications. When it comes to something as important as oil pressure, insist on Moroso Race Pumps . . there is a difference!Pit Stop USA offers Moroso High-Volume Billet Aluminum Spur Gear Oil Pump - SB Chevy 22171 at low everyday prices. Be sure to check out all of our products from Moroso Performance Products including Moroso Performance Products Small Block Chevy Oil Pumps.