So if you had piston options YOU WOULD consider or go with a 413 motor and those industrial heads ?
Absolutely. It is the best motor Chrysler built for an RV or truck application.. Sodium exh valves are a big plus. I don't know much about the head chambers or what it would take to get any type of quench though.
Just a quick question at this point .... how much investigation have you done on the 413 ... past the knowledge of the lack of piston choices ? Do you have access to a 413 core motor ?