1. Space and Clearance: The Ford 302 engine is physically larger than the Porsche 928's original engine. This presents challenges with fitting the engine into the engine bay, particularly in terms of height and width clearance. Custom engine mounts and modifications to the chassis may be necessary.
2. Engine Mounts and Transmission: The Ford 302 engine uses different mounting points compared to the Porsche's original engine. Custom-fabricated engine mounts and transmission mounts need to be designed and installed to secure the engine and connect it to the vehicle's drivetrain.
3. Fuel System: The fuel injection and fuel delivery system of the Ford 302 will need to be adapted to the Porsche's fuel system. This may involve modifying the fuel lines, fuel pump, fuel injectors, and the ECU (engine control unit) to work with the Ford engine's fuel requirements.
4. Cooling System: The cooling system of the Porsche 928 may not be sufficient to handle the heat generated by the Ford 302 engine. Upgrading the radiator, water pump, hoses, and thermostat may be necessary to ensure adequate cooling capacity.
5. Wiring and Electronics: The electrical system and wiring of the Porsche 928 may need modifications to accommodate the different electrical components and sensors used by the Ford 302 engine. This includes integrating the engine management system, ignition system, and other components with the Porsche's electrical infrastructure.
6. Driveshaft and Differential: With a different engine and transmission combination, the original driveshaft and differential of the Porsche 928 may not be suitable. Custom driveshaft length and a compatible differential might be required to properly transfer power from the Ford engine to the rear wheels.
It's important to note that such an engine swap requires skilled fabrication, engineering, and mechanical expertise. It is highly recommended to seek the assistance of experienced professionals or consult with Porsche experts to ensure proper installation, safety, and reliability.
