At OTTO WERKS, our 3.8L to 4.0L conversion is a staple offering in our lineup of high-performance engine packages. Built on decades of experience and dozens of Mezger platform development builds, this upgrade delivers remarkable improvements in both peak performance and torque, resulting in a truly transformative driving experience. With the addition of optional Dundon accessories, this package has been tested to produce an impressive 482 wheel horsepower on a Mustang Dyno using standard 91-octane pump fuel. The performance speaks for itself. Premium Components Our 4.0L conversion incorporates only the best, state-of-the-art components, including: Bespoke Carrillo connecting rods for unmatched strength and reliability Porsche Motorsport 4.0 crankshaft, further micro-polished for precision and durability Mahle Motorsport pistons, specifically engineered for this application Tailored Performance To maximize the potential of this engine, we recommend pairing it with our lightweight flywheel and clutch package. Additionally, we offer customizable options for exhaust systems, intake solutions, and more to suit your specific preferences and performance goals. Each engine application varies slightly, contact us for a tailored solution to your vehicle. For comprehensive vehicle needs contact us to schedule a consultation.
