1. 318 Engine:
- A rebuilt or used 318 cubic inch (5.2L) V8 engine from a compatible donor vehicle (e.g., a Dodge Dart or Valiant with a 318 engine).
2. Engine Mounts:
- Custom engine mounts or conversion brackets. Slant 6 and 318 are 2 different sized blocks. Custom engine mou nts will be crucial.
3. Transmission:
- Automatic: If the 1970 Dart had an automatic transmission, you may be able to retain it with an appropriate bellhousing adapter. Otherwise, you might need to source an automatic transmission that bolts up to the 318 engine (e.g., a TorqueFlite A727).
- Manual: If the 1970 Dart has a manual transmission, you may need to find a compatible manual transmission that mates with the 318 engine and install it along with a proper clutch and flywheel.
4. Exhaust System:
- You will likely need to modify or replace the exhaust system to fit the new engine. Custom exhaust modifications might be necessary due to the different engine positions.
5. Fuel System:
- Depending on the fuel system of the donor vehicle, you might need to make modifications to your fuel lines, fuel pump, and/or carburetor (if applicable) to match the requirements of the 318 engine.
6. Cooling System:
- You might need to replace or modify the existing radiator, hoses, fan, and other components to ensure proper cooling.
7. Electrical System:
- You may need to modify the vehicle's electrical system (e.g., wiring, starter, and ignition) to work with the new engine. Custom wiring harness and accessories for 318 engine installation can be bought aftermarket to help with integration.
8. Driveshaft:
- Depending on the length and compatibility of the existing driveshaft, you might need to modify or replace it to fit the new engine and transmission setup.
The exact list of components and modification required can vary depending on the condition and configuration of your specific 1970 Dodge Dart and the source of the 318 engine and related components.
Before beginning the engine swap, it's important to assess the overall feasibility and complexity of the project considering your mechanical skills, available resources, and local regulations related to engine alterations.