When you move the body forward, are you sure you won't have room for the fan? Either way, there won't be much room for a radiator. All I could fit with the frame horns in the way was a radiator for a '66 Mustang. I've thought if I needed more, I also might be able to stuff a couple motorcycle radiators on either side to help. Maybe some port holes in the hood would help too. So far my 350 barely stays cool enough as is, but it makes me nervous in traffic on hot days.