Yes it is Jack's engine. (Trying to talk he out of it). Don't think it ever had the asbestos lining in it. Talked him out of restoring it. Just doing a good cleaning, fixing and replacing missing parts. Trying to preserve what is there. It can only be original once. No matter how much you try you can't ever put it back.
I totally agree with you Randy. It is only original once! Please don't let him restore/ruin it.
When I visited Gil in January, I got to run a similar engine that Gil helped bring back to running condition: You can see me running it at the 3 minute mark of the below video. Running it was amazing. What an engine!