Making it fit- Stealth heads on a 413

Figured you guys would get a kick out of this. I have a customer who decided he wanted to upgrade from his iron 346 heads on his existing shortblock. So after I took some measurements and wrote a program for the CNC mill, he has a bolt on head! They will also get a light skim cut with the CBN mill to make the decks flat as they have about a .004" dip in the middle.

Getting cut in the CNC mill-


before and after-




Look forward to hearing his impressions from the changes. This is in a '65 Sport Fury Convertible that he drives from Wisconsin to Florida 1-2 times a year.