New Coan Converter

Yeah I hear ya but don't really have an answer lol. Do any of the converter outfits charge a core? Some may go to a core, some to a scrap pile and others the owner may not know what they are missing.
I think a lot of folks are apprehensive about pulling a trans or motor out to access the converter. It is a significant task for many. How many “which cam or which rear gear” threads do you see answered with get a modern higher stall converter and it will be a Big Bang for the buck. But I bet most never do unless it’s out for another reason.