S. Jennings Racing, LLC has a wealth of experience in rebuilding engines from virtually every era of racing. From antique 1930’s MGs to Porsche 993 cup cars, our state-of-the-art research and development techniques help us create the best racing packages available.

Upon arrival, all engines are meticulously disassembled, cleaned, and evaluated. We use processes like magnaflux, pressure testing, and precision inspection to ensure every part is up to standard. Our in-house assembly and rebuild processes include main line and cylinder honing, rod reconditioning, and complete cylinder head services.

If a component is no longer in production, our full CNC machining capabilities allow us to manufacture custom parts with exact replication and quality control. Each engine undergoes a break-in and tuning process on our water brake dynamometers, utilizing the latest Depac data acquisition software.