- Diesel and Gas Performance Center
 - Full-service, light-duty, high-performance diesel engine building and tuning shop that works strictly on Ford Powerstroke, Chevy Duramax, and Dodge Cummins pickups. - Foreign Car Rebuilding (FCR)
- Automotive machine shop specializing in engine repair and rebuilding.
- H&H Flatheads
- Antique, custom, and rebuilt V8 Flathead specialists offering parts and services including all early Ford engines such as Model T, A, and B.
- Harvey Racing Engines
- High performance engine specialists offering custom services, shop equipment, and information pertaining to drag racing engines and speed equipment.
- Hickernell Engine Services
- Offers race motor building, including dyno testing, machine work, head work, and complete builds.
- Inglese Inductions Systems
- Builds Weber carburetion for V8 engines. Also offers Weber carburetors and carburetion system accessories.
- Mark Glew & Company
- Automotive cylinder head remanufacturing.
- Old Speed
- Stock and custom built performance engines. Restoration parts and services for all air-cooled VWs.
- Q & E, Inc.
- Engine reconditioning facility specializing in motorcycles, ATVs, snowmobiles, and personal watercraft.
- SAS Racing
- Specializes in Mazda rotary engine building for street cars, high performance street cars, and full race cars.
- Turbochargers.com
- Sales and service of turbochargers, turbo parts, marine parts, and equipment.
- Williams Precision Engines
- High performance dyno equipped engine shop specializing in custom designed Sprint, late model and modified racing engines.
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