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Water Pump Engine Block Repair

One of those items that marks the End of Life (EOL) for a 928 motor is damage to the water pump volute in the block. Although the impeller is located in the bolt-on part of the water-pump, the rest of the water pump the volute is cast into the block. And when the water pump bearings fail, the impeller often gouges into the block as shown here.

We have developed a proprietary process for re-casting the water pump volute in the block that restores the exact original dimensions and coolant flow to the engine. Our process casts a new volute over the injured one, with modern and temperature-stable metallic resins. It bonds extremely well to the Alusil block, and to any of the factory synthetic resin coating that remains.

Our re-casting process can only be done here on our premises, and cannot be done with the engine in the car.

A 928 bare block in a heavy cardboard box with padding will weigh about 100 pounds, and they ship via UPS ground. Turn-around time is about 1 week on this repair.


Price (USD)


Water Pump Engine Block Repair

Motor Freight - Pay the Carrier

* Domestic US shipping shown. International shipping will be calculated based on location.


Phone: (920) 485-0928
Email: info@928motorsports.com

928 Motorsports, LLC - All Rights Reserved
Horicon, Wisconsin USA

928Motorsports.com - Performance Parts for your Porsche® 928