No word from seller
Thanks for your input. The pics are not terribly revealing, as you might have noticed. I didn't notice a dipstick, but had trouble making out other components, and thought I'd ask the members for clues and insights. The seller states that it is a 348, but it was removed running from a 1964 SS car, so I thought it was worth the exploration. One never knows when you might stumble upon a mistake made by others, right?
It would be rare for me to locate a running complete engine within my price range
. I did send a message to the seller, which I think is a shop, so they probably know the differences between 348s and 409s. No word from them as yet, and the auction is over soon.
Thanks again for you input on short notice. I'll keep looking. Got plenty to keep me busy right now!
Best,
TomK