cadillac cylinder head question

Okay I have a 62 390, I found a guy with some rebuilt 67 390/429 heads. Do you guys know if these will work or did the design change after 62?

Thanks

 

Although the heads are completely different I believe they use the same head and intake gakets, soooo... they might in fact work, but remember the heads were the weak point in the later 390/429 design, subject warping and blown head gaskets. I am working here with a proven faulty memory and think process so take that into consideration please.

 

Actually now that I think about it, 62 and back use a water pump that connects to both the heads and block so if they did bolt up I would probably have a hard time with a water pump.