water in the oil

Ok, what kind of rocker failure? Why did the rocker fail? I use rtv around the water passages on the intake. A thin coat. A dab on the outer corner bolts threads maybe. Can’t remember if they are wet bolts. I have to use engine hoist to remove the intake every time. I have a phenolic spacer that takes the place of the cork gaskets runs all the way front to back and it is close enough I can’t get a razor in to cut the rtv. A major PITA!

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Stump what is the purpose of the spacer? Cant say I have ever seen one before.