I am changing to edelbrock heads. Any Idea what stock Ga heads are worth if anything? Thanks.

 

They're decent heads. Check the size of the intake valve, the small valve ones will be about 2.00 inches across. The big valve will be 2.07 across. Theres more demand for the big valve, but I would hope you could still get $75 for a set of grimy heads complete. If you had them hot tanked and magged to assure there's no cracks that would bring it up to $100-125 depending on how much the shipping costs added to the purchase price. That's my 2 cents worth! John

 

Thanks John, I will measure valve then post heads for sale.