$100 plus shipping costs. Heads have never been opened. Had a guy staying with me and he moved out but left these and I have no way of getting a hold of him. Its been like 2 years and time to get rid of them.
I don't know much about them but I do have the GM Casting # 376450 and after a little research I think they are:
Mercruiser SBC 305 Cylinder Heads for 1975-1981
They are selling for 400-600$ everywhere else. $100 plus shipping gets them!
Contact me at: t.ellio.09(at)gmail.com OR two.two.8.two.2.nine.9047