I hope that doesn't stop you from going with the swap. I am still working on purchasing one of the few OEM heads that this guy has for the 300 six, and I'd still like to purchase a decent 300 and swap it for my 408.....................I'd love to put my 408/trans in a light weight Altered and go really fast in a 1500lb open car.............................before I'm too old to go racing anymore.