1680 1962-1967 Ford 221 260 early High Performance 289 5 1/8" water pumpFlowkooler designed a high flow water pump for the 289 Hi Po engine with a CNC machined billet impeller with 16 vanes, integrated shrouding and a reduced casting to impeller vane clearance. It achieves greater flow rates, higher head pressure and a more efficient flow. The impeller color is due to Type II Class II military grade surface coating which protects against corrosive fluids. FlowKooler introduced the first hi flow pumps and continues to