so in my searches for a fox ive come across a 1981 ford fairmont, silver 2 door. The guy only wants 1000 for it and hes replaced the radiator, the interior, and the brakes. Basicaly the car is gorgeous but the only downside is that its a 2.3 liter 4 banger. Ive heard of guys swapping in a 5.0 but how easy or costly is that. it would be my plan to do such a swap down the road if i got the car. so aside from the cost of an engine, how much would this run me in the future and how easy is it?