I called Dave Weber's Modern Muscle shop today and I was told that the Super Charged head is unique, built for the Super Charger. However, they also confirmed something I wondered about. The head on the 6.4 Ram truck engine is the same head as the SC head and is drilled for an NA intake. That's the one to use if you want the non-SC intake bolt pattern. They mentioned that the main advantage of the SC or Ram head was its stronger material for boosted applications.