It's not impossible... but it's not easy either. You don't modify the engine, you would have to modify the car. custom motor mounts would have to be fabricated and possibly some frame modifications. You would also have to change the transmission or find an adapter bellhousing to mount a GM engine to a Ford transmission. Then it's custom exhaust, wiring, coolant hoses, fuel lines and throttle cable, etc........get the picture?? it's not worth it, spend the money on upgrading or replacing the Ford engine with another Ford engine.
