AFR Blue Hornet Mopar cylinder head, Charles Servedio

I can tell you the SM casting can take a lot of porting! When Bryce was doing his airwolf heads, SM added more material to the casting (so he told me). His program was a little thin under the spring seat area, but overall those heads held up pretty well in running engines.

I'm getting ready to do a set for a customer, so I guess we'll see.