862 heads Professionally Hand ported and polished intake/exhaust runners along with combustion chambers, Manley 2" stainless intake valves, Patriot Dual Gold Springs with Titanium Locks worth?

They only have 1200 miles on them. The guy I traded for them installed these heads in place of a set of stock 243 heads on his LS1 and he picked up almost 25hp over the 243's.



What you think they are worth?

 

I say $700
If you have a flow sheet on them that would be a major help in the sale

 

I was thinking around the same ball park myself....I agree flow sheet would be good info to sell.... I like the prove gains over a set of set 243's though.

I might put these up for sale, still kicking around the idea. I really have no use for them right now.

 

Maybe if you got copys of the before and after dynos showing the gains would also help

 

Im going to check with shop that did the dynos to see if they still have the graphs saved and email them to me.