HIGH PRESS STD VOLUME OIL PUMPStock volume high performance oil pump. Includes extended drive shaft for additional support at high RPM levels. Cover is doweled to the pump housing to assure alignment of shaft bores. The housing and cover are CNC machined and maganese phosphate coated for wear and rust prevention. The relief valve has a pressure adjustable screw in plug instead of a cup plug. Works with OE type bolt on pickup screen.