Well I dropped the seller a line and here's what he had to say:

Dear Don:
Purchased from my machinist. Have requested exactly what was done. From what they can remember was cleaned, new timing chain, crank shaft, rods, bearings rebuilt, and pistons sized and marked on piston SPO.03 90.87. Hope this helps. Wanted to give you a reply asap. I do have the reciept from my machine shop. If you have more questions pls ask. Thank you for your interest.