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Reply to "Rough Start to New Year"

I pulled the intake off and didn't see anything on the top side of the valves nor any scratching or scoring.

I decided to drain the oil and to my surprise at least 1 gallon of straight green anti-freeze came out, no milky oil at all.  I dumped the anti-freeze and went to drain it again then the oil, milky came out.

Last oil change was 1K miles ago.

At this point, I'm thinking a cracked block or somehow punched a hole in the aluminum heads?   These are Speed Master 3V heads for reference.

Engine is coming out but curious of the root cause of the failure.

Thanks,

John

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