Engine Repair and Rebuilding Services WI.

SPR SPEED PERFORMANCE: More power for your engine.


We’re a full-service machine shop located in Port Washington, WI, and all of our work is completed in-house to ensure you get the highest level of quality. We’ve invested in the best machining, testing and cleaning equipment to give you and your engine, the edge over the competition.

This is why customers from all over Wisconsin have trusted us with their performance improvements and repairs.

How fast do you want to go?