Guys,
I am running a set AFR 190cc heads on my 96 Impala. I bought them from a good friend with less than 5 thousand miles on them when he went to 210cc heads ported by GTP on his 396 LT1 stroker. They are ported and have 2.02/1.60 valves, Comp Cam dual valve springs good to .600 lift, and flow 280cfm intake. When I bought them he could not find the flow sheets, but I did see them when he had them done. ( by a local machine shop who is good with LT1's). What do you think I can get for them if I decide to sell them. (Want to get a set of LT4's and port them). Tell what you think. They now have aprox 10,000 miles on them running a Hotcam.
HVY SS

 

put them on ebay and see what they go for? Hard to tell what they're worth. All based on what someone is willing to pay. Plus, a flow sheet would really help your cause.