Welcome to beautiful East Tennessee and the forums. I live in Washington County, only about 30 miles away. I have to agree with the earlier posts, the old timers who knew babbit 216 engines are mostly gone. Have you considered a 235 engine as a replacement as many of us have? They were built from 1953-1962 are a bit more modern, easier to find parts for, easier to find someone who can rebuild it, usually leak less, and add from 10-35 more hp depending on the year. A 235 engine has the same dimensions as your 216 and will require minimum modifications (usually just the water pump). Also the 235 can be camouflaged by using the 216-valve cover and parts until only the initiated know the difference. Just a suggestion, I understand those who insist on 100% originality.

BTW, come over and join us Saturday evenings with the Carter County Car Club, -look up their FB page for details. Usually several hundred classic vehicles every Saturday 5-9pm.
Don