They are not the same 318/360 so crank and rods won't do it.
If your fan controller has thermostatic control (turns itself on and off depending on temp) you can connect it right at the relay on the heavy positive terminal.
Exactly what I beleive I did. Done... I'll fire it up next weekend and let it idle until the fan turns on.
Projects left
-Power Steering Leak (looks like at the hoses connected to the pump)
-Real dual exhaust (instead of my mock up)
-Master Brake Cylinder Leak (installed remanufactured one)
-Oil Change
-Connect Dart and Power Wagon turn signals/brake lights, horns, and anything else that might not be working electrical work.
-Full Interior Restore
-Exterior strip and into black primer, put all chrome on the car.
-Drive it!
