The LY6 6.0
Pretty sure crank is shot. Oil pressure dropped and 6 and 7 got really hot from the looks of it.
No computer, will have to source that
It was FREE
Brand new truck intake, though that may not last long
With a rebuild being pretty much warranted, that opens up doors for going bigger. Possibly make it a 408? We'll see.
All wiring is there (at least I think so)