Originally Posted by
Raptor119
C7AE heads are '67 castings and work on any 390. Valve size may be smaller (don't know) but they could be modified to larger 390 sizes easily if there was a difference. I don't think there was.
I did find a chart, maybe on Fordification, that listed valve sizes. As I recall they were the same on most (if not all) the 352-390 heads. I was just wondering if there were differences in the casting that would make heads from a 390 equiped motor more desireable than those I currently have. Sounds like what I have will work just fine.