It's hard to believe that there is a locking screw inside those rocker nuts that hold the rockers in place. I still haven't looked into it.
I will later today. Also, I noticed a cap on one of the valve stems. Now, I don't remember if two caps were used. I put the head in my wash tank then blew out the head. I don't know if one of the caps blew off or if it only used one cap. How canI tell if I need two or just one cap?