Many years ago a friend of mine had a straight 8. It was about 6" longer than a GMC and about 8" longer than a Chev. He finally put it in a T roadster where he fabricated a frame. It looked and sounded cool, but it wasn't particularly quick. 6 to 8 inches is a lot to deal with when you can get the same power out of a 302 GMC. Unless you just want to be different, I don't think it is really worth the effort.