As a follow up to my original post what challenges will I face if I find a 400 that was originally mated to an automatic trans but I want to mate to my 4 speed Muncie trans? Are the splines the same size? What about the flywheel, can I use the flywheel from the 350 currently that is mated to the manual trans or do I need to find a flywheel specific for a manual trans for the 400? Any other parts I’ll need?
