Header Question

Do you know what the difference is? All I am worried about is getting them in without having to modify the wheel wells. With the 66 Dart, I will have to fabricate my own exhaust anyway, as I am unable to find a bolt-in. So as long as I can bolt the headers to the motor, and get it in the car without having to modify the body at all I would be very happy. Also I do not have P/S, A/C or any of that fun stuff so there isn't going to be much to get in the way.