Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling 10227 high performance oil pump is a standard volume upgrade of the M227. The 10227 oil pump is designed specifically for the 4.6L DOHC Mustang Cobra and 4.6-X SOHC Mustang. The 10227 is supplied with billet steel rotors and features an anodized hard coated aluminum body and a phosphate coated cast iron cover for improved pump performance and durability. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Product Features:8% Higher pressure high performance upgrade of the M227Die cast aluminum housingCast iron cover130,000 TSI tensile strength billet steel rotorsAdjustable pressure relief valveUses 15/16 inch diameter bolt on screenIncludes oil pump screen mounting o-ring seal