While I am not going to start doing it yet, I just want to start gathering info on swapping in a Caddy big block (472 or 500cu)into my Jimmy. When my 350 goes to Chevy Heaven I refuse to replace it w/ a small block (Its that whole macho "theres no replacement for displacement" thing). Who here runs a Caddy big block, how do you like it, what is done to it? Did you buy a kit to put it in or make your own? What problems did you run into or wish you would have done different? Would you recommend the swap, or should people stick to a Chev big block?