Ok, why? Prowling Racingjunk.com,always looking for that elusive 8.5 or a complete Buick 350 (cheap). They had a high $$ 400 inch chevy with Buick heads on it. With over a zillion chevy heads available in everything from aluminum, cast iron and unobtainium, why go with the Buick stuff? Exhaust valve placement? 0
As explained in this quote they are actually pretty cool heads. They are made by Dart, fit a Chevy Small block chevy and use some of the design of the Buick heads. The thread this quote came from. http://www.v8buick.com/newreply.php?do=newreply&p=1143857
https://www.ebay.com/itm/186074882769 The seller is asking for $800 for the raw casting of the heads and an intake.
Very outdated now....but still clvery capable ....I wouldn't give but MAYBE $1k if they are ready to go with intake and rockers...they would require custom headers also. ANYTHING less than complete ready to go...$500 tops...but honestly no sbc guys mess with them anymore