PRW 1430210 Performance Quotient 5/8" Pulley Pilot Shaft High Flow Polished Aluminum Water Pump for Ford 302 1970-78, 351W 1970-87 Steel hubs and heavy duty shielded-seal roller ball bearings Pressure injected aluminum alloy pump bodies Back plate "O" ring sealed for competition plus applications Reliable cast iron CNC machined impellers Polished finish housings