Stop in for a cup of coffee

Haven't been on thread much this week, saw the valve cover off pics, what's going on with it?
Back in December when we had -17 degree ambient temps, -30-40 below zero degree F, I was driving and suddenly starting spewing white smoke and lost all oil. Got home, radiator was full of mustard like sludge. Only 3 quarts of the 17 of oil this thing holds was in the pan. No mixing of oil or coolant though.

Finally got the parts in and started tearing into it this week.

Got the head off this afternoon, this is what I found. One of these doesn’t look like the other 5…

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