Thanks everyone - Jinxd you were right, I asked a pro restoration expert to take a look too and he confirmed it's a Chevy small block engine, not a Pontiac as advertised. Dunno what this indicates about the seller, but when I called him on it he said the previous owner had told him it was the original #s matching engine.
Going to take a look at it tomorrow and find out how long it was in Michigan, etc. Good eye on those Michigan plates Wovenweb....
