1. Engine and Transmission Selection:
* Engine: You'll need the 350 Chevy engine itself, along with all necessary accessories (alternator, power steering pump, etc.). Consider the year and specific engine configuration as some are easier to adapt than others.
* Transmission: The Chevy 350's original transmission likely won't bolt directly to the Toyota's transfer case. You'll need a transmission that's compatible with both – this might require an adapter plate or a custom driveshaft. Popular choices often include a TH350, TH400, or a more modern automatic. A manual transmission swap adds further complexity.
2. Fabrication and Modification:
* Engine Mounts: Completely new engine mounts will need to be fabricated to securely position the 350 in the Toyota's engine bay. This often involves welding and significant metalwork.
* Exhaust System: The existing exhaust system won't work. A custom exhaust system will be needed, likely involving headers and a new exhaust piping setup.
* Driveshaft: As mentioned, you'll almost certainly need a custom driveshaft to connect the transmission to the rear axle. The length and angle will need precise measurement and fabrication.
* Wiring Harness: The Chevy's wiring harness won't be compatible with the Toyota's electrical system. You'll need to either modify the Chevy harness to work with the Toyota's system or create a completely new wiring harness.
* Cooling System: The existing Toyota radiator likely won't be sufficient for the larger 350 engine. A larger radiator and potentially new hoses and coolant lines will be needed.
* Fuel System: The fuel tank and lines may need upgrading to handle the increased fuel demands of the V8.
* Body Modifications: Depending on the specific Toyota model and the size of the 350, you may need to modify the firewall, inner fenders, or other parts of the body to accommodate the engine.
3. Necessary Skills and Tools:
This project requires significant mechanical skills, welding experience, and a well-equipped workshop with tools including a welder, cutting tools, measuring equipment, and engine hoist.
4. Legal Considerations:
Check your local laws and regulations regarding engine swaps. Modifications like this may require inspection and certification.
In short: Swapping a 350 into a Toyota pickup is a major project requiring significant mechanical expertise, fabrication skills, and a substantial investment in time, tools, and parts. It's not a job for beginners. If you're not experienced with engine swaps and fabrication, it's strongly recommended to seek help from experienced mechanics or specialists. Consider the cost and complexity before starting – it can easily exceed the value of the truck itself.
