1734 1980-1986 Inline 6 cylinder 153 250 305 CW Rotation 3 11/16" water pump

If your running a riser set-up and find your heat cycling it might mean trapped air.  The best solution is to build pressure to and the best tool is pump 1734.  We designed a impeller with an increased vane count and a reduced impeller vane clearance to take build that pressure.  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 Econoline 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 16 CNC Aluminum Direction o