cost wise, i'm not neccisarily sure which will be cheaper.... the motor mounts to bolt the chevy to the ford... the tranny adapter for your ford to a chevy is gonna cost between $200-$400... and i'm sure theres going to be some little odds and ends here... i think the most cost effective method would be to sell the chevy motor and rebuild the 5.0.... but do what you will ... my rambler has a chrysler motor in it