The Ford Super Duty F350 is a powerful workhorse, but some owners crave the legendary reliability and torque of a Cummins diesel engine. A 2008 F350 Cummins Swap Kit offers a solution, allowing you to replace the factory 6.4L Powerstroke with a Cummins. This guide provides a detailed overview of the conversion process, necessary components, and considerations.
Understanding the 2008 F350 Cummins Swap
Swapping a Cummins into a 2008 F350 involves replacing the engine, transmission controller, motor mounts, and various other components. While challenging, this conversion is popular due to the Cummins’ reputation for longevity and performance. Diesel Conversion Specialists (DCS) offers comprehensive kits and support to simplify this process. Fortunately, the 2008 F350’s chassis requires minimal modification for the Cummins engine to fit.
Key Components of a 2008 F350 Cummins Swap Kit
A comprehensive 2008 F350 Cummins swap kit typically includes the following:
- Adapter Plate: This plate allows the Cummins engine to mate to the Ford transmission. It’s precision machined from durable aluminum for a reliable connection.
- Engine Mounts: Designed to securely position the Cummins in the F350’s engine bay, accommodating either engine-driven or electric fans. Note: using the Cummins engine-driven fan will require shortening the rear driveshaft.
- Transmission Controller: Retaining the Ford 5R110 transmission requires tuning the factory TCM (Transmission Control Module) to ensure proper operation with the Cummins engine.
- Sensor Adapters: These adapters allow the Ford gauge sending units to function correctly with the Cummins engine, ensuring accurate readings for critical parameters.
Additional Parts and Considerations
Beyond the core components, several other parts are essential for a successful swap:
- Exhaust Manifolds: Conversion-friendly manifolds optimize turbo placement and exhaust flow, often a two-piece design to prevent cracking.
- Wiring Harness: Depending on the Cummins engine (12-valve or 24-valve), a new harness or a modification service is necessary for proper electrical integration.
- Air Intake System: An aftermarket air filter and intake piping are needed to connect to the Cummins turbocharger.
- A/C System: A custom AC manifold and lines are required to adapt the Ford AC system to a Dodge Cummins compressor.
You’ll also need to source some parts independently, including an exhaust downpipe, intercooler tubes, a throttle cable, and potentially a throttle position sensor.
Choosing the Right Cummins Engine
The choice between a 12-valve and a 24-valve Cummins engine impacts the complexity of the swap. 12-valve engines generally require re-orienting the turbocharger housing and using a specific wastegate actuator kit. 24-valve engines may require a different wastegate actuator and bracket, or using a common rail turbo with a specific downpipe.
Professional Assistance and Resources
While a 2008 F350 Cummins swap can be tackled by experienced mechanics, seeking professional assistance is often recommended. DCS provides detailed installation instructions, technical support, and even wiring harness modification services. Thorough research and planning are crucial for a successful conversion.
Conclusion
A 2008 F350 Cummins swap kit offers a compelling way to combine the robust platform of the Ford Super Duty with the legendary performance of a Cummins diesel. By understanding the process, gathering the necessary components, and considering professional assistance, you can transform your F350 into a truly formidable machine. Contact Diesel Conversion Specialists for expert guidance and comprehensive solutions for your 2008 F350 Cummins swap project.
