1689 1955-1963 Chevy 235 Inline 6 water pump

The tri-fives can run hot so Flowkooler designed a high flow water pump with a CNC machined billet impeller to 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 for the inline 6 and continues to improve impeller design. Why is increased flow so important to cooling a hot 235 or 265 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 anx`d 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 Hub Height 5-1/4" Hose Connections: 1st 2nd Gender F F