I came across an early Hemi potvin cover and a potvin early cam and I think I am going to try and scramble parts together to build an early Hemi. If anyone knows of any potvin parts or pieces for sale, please let me know.
There is a guy over on the Racing Studebakers website that is doing a Potvin build for his Stude V8 if your are interested. He is building a lot of his own parts.
Your front cover looks to be for a 51 to 54 331 based on the lower water ports. Cool stuff, good luck with your search.
He is a HAMB member with a thread for his Potvin/Stude. https://www.jalopyjournal.com/forum/threads/potvin-blower-on-a-studebaker-v8.1180733/
That is bound to help someone even if not drumyn29. Not sure if it's an old style linkage or newer but just that clear and close shot will help anyone trying to get a "hookup".