Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. Standard volume performance upgrade for M-77. The housing and cover are CNC machined and phosphate coated. The lower pressure spring is included to reduce pressure if desired. Built with billet steel gears. Includes intermediate shaft with steel guide. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Product Features:Standard volume high performance upgrade of the M-77CNC machined phosphate coated cast iron housing and coverStandard billet steel spur gearsIncludes chrome moly steel intermediate drive shaft with pinned steel guideIncludes lower pressure spring; not installedUses 3/4 inch diameter press fit screen
