I thought I recognize this head, I refreshed for Chris not long ago. It's got what I would call a mild port job, still has the guide bosses in the head, bowls are worked though. He asked me to check it out for him, it has hardend seats, bronze guides, new valve seals, nice valves, nice three angle valve job, springs are set at about 85 pounds seat pressure. about 24 ccs on the combustion chamber best I can remember. As advertised, it's fresh and ready to go.