So a friend of mine calls me a few months ago saying he has a nice block that has been cleaned up and ready to rebuild with all the matching parts, polished crank and cam, and a rebuilt IP. Missing heads and injectors. I figured I have a couple of engines siting here I can rebuild a pair of heads or pick a nice clean set and I can assemble an engine. He says $300 for the whole thing so I say OK. I recieve the engine block and crank with some surface rust and I freak out, then I think OH well I willpolish it again, there is no deep rust, turns out it has been sitting in his garage collecting dust (and moisture) for a year. Well I thew it in my garage until I have time to work on it. Today I wanted to move it out of the way to work onmy jeep and I think, let's see what kind of block that is, and to my surprise looking at the casting number, it ends with 599. I am pretty sure that is a late model block and if my memory serves me, it can be bored to 6.5l, correct? Now the block has been magnafluxed, honed and new plugs and block heater. Should I: - rebuild it the way it is after cleaning up the rust and put my BANKS turbo on it. or - wait and do a 6.5l and still turbo it with either a stock GM or the BANKS. I am in no hurry, I have too many projects now so give me your thoughts. and do you guys think I got a good deal?