Are you looking for numbers correct heads ?? If not, I believe that all the 350 heads are basically the same. And they are for the most part very plentiful. Just wondering, I "think" I may have a pair of 69' heads, NOT GS but 69's. I would have to look for them though.
i have a 350-4 i pulled from a '68 Skylark. shipping would be expensive unless you could pick them up here. where are you?