Measure out and watch the steering. Like Farna said..the accessories can get in the way. I am hopeing we do not have to cut the inner fenders on this one. People have put Chevy V6's in these but I have not seen one done up close to see the way it fits and what has to be cut or moved. I went with the quad 4 because of the narrow size and the intake and exhaust are up high. Besides it just looks cool. We have some plans for the quad 4 to make it a little different. The goal is to change over a Rambler American without blowing the entire car apart. We are continuing tomorrow so I should have more pics in a day or so.