Why you should always check...

Always, and I mean Always remove oil pan and at least one head (i do the two) after buying a rebuild engine.
I bought a 360 back in the late 80es and the guy I bought it from got half way mad when he visited and seen a new rebuild he done on the 360, everything checked out but low and behold I found two rod caps was not TQ ed down, I just told my friend that I had time on my hands and gaskets to double check ..