I have a good set of 243 heads with Patriot dual valve springs for sale. I bought these for my 02 2500hd project, installed them then wrecked the truck. I also have new valve seals in the bag and new Napa head gaskets that I got with the heads when I bought them. Im looking for $600 and will try to post pics on here or send me a P.M with your number and i can text pictures.