Family-owned and operated near Rochester, McQuillen Engines Inc. is an automotive machine shop and advanced manufacturing facility that builds and machines high-performance and heavy-duty diesel engines. Its work also includes antique engine restorations, engineering and testing support for OEM manufacturers, and specialized services for landfill-gas operators. The company says 80% of its employees have been with it for more than 15 years, giving its precision work a notably experienced workforce.
Enterprise Engine PerformanceSince 1987, family-owned Enterprise Engine Performance has repaired and rebuilt diesel pickup engines at its Thornville, Ohio shop, pairing a service department with an in-house machine shop. Its mechanics and machinists handle everything from minor repairs to complete overhauls, including custom engine and driveline setups for pulling and drag trucks. The company also supplies rebuild kits and diesel parts for Cummins, Duramax, and PowerStroke applications.THORNVILLE, OH
JEB Modern Machines, LTDFamily-owned and operated since opening in 2000, JEB Modern Machines fabricates custom performance parts and builds high-performance engines from its 20,000-square-foot facility. The Republic, Ohio, shop grew from a farming operation’s hands-on equipment experience into a CNC machining and engineering business known for diesel truck and tractor-pulling components, including turbo parts and billet accessories. Its research and development lab uses GibbsCam and CAD/CAM software, while a full-time quality control specialist inspects production.REPUBLIC, OH
Precision Engine Machine CoBorn from a drag-racing partnership in 1967, Precision Engine Machine Co. is a full-service automotive machine shop that builds custom engines and performs precision engine work for street, racing, and vintage applications. More than 50 years later, Jan Norris runs the shop with his son Michael and grandson Branden, carrying a three-generation Norris tradition from Top Fuel dragsters and circle-track engines to vintage restorations. The shop is also known for its airflow testing capabilities and cylinder-head expertise.HYATTSVILLE, MD