Have been given a suggestion by a fellow member in order to ultimately be happy with my 57 buick which I want to big block and posi, he has suggested simply making a chassis swap in order to get disk brakes, posi, and 455 engine. It does seem to make good sense, but what all does this entail, what is the proper donor car, etc.... I would love to hear from anyone who has made this swap and what to look for and look out for.