yeah, we could probably put a 302 in it....but where's the fun in that? It had a 351, so why not put one back in. I don't think it's going to be that hard to find one. From what I've read so far, 302 heads can be used on a 351W as long as the headbolt holes are drilled for the larger headbolts on a 351W. I'd like to see a set of GT40 heads on top of a 351. Seems to be a common thing when people rebuild these in their boats. They say it makes a very noticable difference in performance. Supposed to bring the marine 351 from the 230-240hp range up near 300.