Thanks, Blue bird never got back to me yet on my inquiry, I was hoping a 460 would be a bolt in and hoping part of the same family of engines, it being one of the easiest engines to find and a Cummins was the recommended by the truck scrap yards as the best option for a diesel swap and possibly able to find one able to use the existing tranny or with an auto though a couple grand extra if needing another trans. I'll be looking around for one in a running truck. It's funny, one allways sees good deals on them when one isn't looking!