About SPR Engines in Wisconsin.

Specializing in Domestic, Import, Marine, and Light & Medium Duty Industrial Vehicles

When it comes to custom performance racing and diesel engine building, Speed Performance Engines (SPR) is your local, full service expert. SPR has been in business for over 21 years. We have been building and repairing performance and racing engines for a variety of vehicles in our shop in Port Washington, Wisconsin since 2002. We are a full service automotive machine shop specializing in import, domestic, marine, light & medium duty industrial engines. We deliver quick turnaround times, and offer in-house engine dyno testing, flow bench testing and balancing.

  • Full-Service Automotive Machine Shop with Quick Turnaround
  • In-House Dyno Testing
  • Stock Rebuilt Short & Long Blocks
  • Cylinder Head Machining
  • Block Machining
  • Engine Balancing
  • Component Testing
  • Performance Assembly
  • Parts Supply

Over 20 yrs of Experience

Precision Machining

For Performance Engines

Speed Performance Research in Wisconsin offers a complete lineup of performance engine machine shop services.

We’ve been making cars faster, working with race and car enthusiasts alike, and enjoy each project from the first turn of the wrench to the final touches of the tune. Let SPR put our years of knowledge in professional racing and street performance to work for you. We’ve got what it takes to completely customize your engine to your exact specifications.

SPR: Your Engine Advantage – (262) 268-0040

foreign & domestic

Diesel engines

CIRCLE TRACK ENGINES

antique & classics

Engine Repair and Rebuilding service in WI

Family owned & operated • Serving Southeastern Wisconsin

(262) 268-0040
© Copyright - Speed Performance Research - SPR Engines. All rights reserved. Port Washington, Wisconsin     PHONE: (262) 268-0040