1681CI 1963-1977 Small Block Ford cast iron 5-9/16" water pump

Small block Ford running hot? Flowkooler designed a high flow water pump with a CNC machined billet impeller, an increased vane count 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 improve impeller design. Why is increased flow so important to cooling a hot Ford engine? Because it has been proven time and time again that reducing the cycle time between the heat source and the heat sink creates more opportunities to shed heat and drop engine temperatures. From 0-3,300 RPM…Nothing Beats a FlowKooler! General Specifications: Type of Material of Pump Body Cast Iron Number of Blades on Impeller 10 CNC Aluminum Direction of Rotation CW (N.B. The casting shape and angle of vane prevents reversing flow of this pump) Fa