1526 1964-1970 Buick and Jeep 225 300 350 401 425 3-5/8" cw water pump

Flowkooler High Flow pump for the 1964-1970 Buick, Jeep "Dauntless" and Olds motors has a CNC machined billet impeller is designed with an increased vane count and a reduced plate-to-impeller clearance.  This design achieves greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps. The color is due to Type II Class II military grade anodize surface coating which protects against corrosive fluids.  

Locator pins

The timing cover and water pump setup on the Buick 300 V8 (1964–1966) typically uses small alignment or dowel pins (often 1/4-inch diameter on original 300 covers, differing from later BOP or Rover 215 parts which use 5/16-inch dowels) to seat and align the water pump and timing cover components properly.

The original Buick 300 timing cover locating dowel/pin holes are 1/4-inch in diameter (note that some related Buick/Oldsmobile/Rover 215 or BOP variations used 5/16-inch dowels, which require drilling if mismatched)

These pins align the water pump and timing chain/cover assembly to prevent shifting, gasket misalignment, or leaks under pressure.

If the pin is a solid pin then use a solid pin.

If a locator or dowel pin is stuck or corroded in the timing cover or block, insert a snug-fitting drill bit (smooth side first) into the center of the pin to support it, then twist and pull it out using vice grips to avoid crushing or collapsing the hollow pin.

FlowKooler introduced the first hi flow pumps and continues to improve impeller design. Why is increased flow so important to cooling a hot 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!