Rings for KB pistons 4.080

crewchief said

I did drive it with PCV disconnected and plugged at carb...no change in burn. It still doesn't explain why blue smoke appears out the left dual only, real noticeable when decelerating.

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Oil smoke under deceleration sure says intake (or something connected to the intake tract). With that #3 plug oiled, that symptom sure ought to help zero in on it. Still could be a valve stem or seal.... you can't rule out a mistake in the head work until it is checked for sure. Is the #3 plug still oiled after the intake R&R?

With a ring oiling, you'll typically see that all the time cruising or under power of any level. FWIW, the 2nd ring does appear to have an 'up' direction per the FM site.