1. Engine Mounts and Transmission:
* Custom Engine Mounts: The biggest hurdle. The B2200's frame wasn't designed for a V8, so you'll need to fabricate custom engine mounts. This often involves welding, cutting, and potentially reinforcing the frame. Many use aftermarket kits or adapt mounts from other vehicles.
* Transmission: The B2200's original transmission won't work. You'll need a transmission compatible with the Chevy 350. Common choices include a TH350, TH400, or 700R4 automatic, or a robust manual like a T5 or NV3500. You'll also need an adapter plate to mate the transmission to the Chevy engine. This is often a custom-fabricated piece.
* Driveshaft: The existing driveshaft will be far too short. A custom driveshaft will be necessary, likely requiring professional balancing.
2. Wiring Harness:
* Extensive Rewiring: The B2200's electrical system is designed for a much smaller engine. You'll need to completely rewire the engine bay, integrating the Chevy 350's wiring harness into the Mazda's system. This is highly complex and requires a good understanding of automotive electrical systems. You might consider using a stand-alone engine management system (like Megasquirt) to simplify things, but that adds its own layer of complexity.
3. Cooling System:
* Radiator: The stock radiator won't suffice. You'll need a larger radiator, likely a custom-fit unit or one from a larger vehicle, capable of handling the higher heat output of the V8. Consider an electric fan for improved cooling.
4. Exhaust System:
* Custom Exhaust: The existing exhaust system is inadequate. You'll need a custom-fabricated exhaust system, potentially including headers, to route the exhaust appropriately.
5. Fuel System:
* Fuel Pump and Lines: You'll need a fuel pump and fuel lines capable of supplying the V8. The stock system likely won't be sufficient.
6. Body Modifications:
* Possible Modifications: Depending on the size of the engine and transmission, you might need to modify the firewall or inner fenders to accommodate the larger engine and transmission.
7. Other Considerations:
* Steering: The increased weight and power of the V8 may require upgraded steering components.
* Brakes: Upgraded brakes are highly recommended for better stopping power.
* Suspension: The added weight in the front of the truck will likely require upgraded suspension components to handle the extra weight.
In short: This is not a project for beginners. It demands extensive mechanical knowledge, welding skills, fabrication experience, and access to specialized tools and equipment. If you lack these skills, it's strongly recommended to seek the help of experienced professionals. Researching online forums and communities dedicated to engine swaps (like those specific to Mazda B-series trucks) is crucial for finding valuable information, tips, and potential pitfalls to avoid. Consider starting with simpler modifications before attempting such a large undertaking.
