These are used but I just had my machine shop go through them with a fresh performance valve job, new stem seals, Comp beehive springs and pressure testing. No cracks and they are ready to install. They have been ported. I do not know who ported them nor do I have paperwork or flow numbers. One of the heads has a welding repair that was performed by Champion. They include studs and guide plates and the proper Scorpion roller rocker arms. Price is $1100 plus shipping and they will be shipped in their original Champion boxes.
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