Head fire rings

[Scooby d]

Getting off the original topic here but I had said that I would post some results. I had found moisture on #6 valve. Rawze suggested that I Pressure system back up and look for water on bottom of liners. Bolted a couple things back on and put 15 psi in radiator. Took a while but eventually got a drip around #6 cylinder. Pulled head and found a tiny blow out in head gasket. Motor has never been apart since factory but some of the bolts were definitely not as tight as others. I wish I would have checked torque on them when loosening. Going to check liner height this weekend.