I decided to measure the cylinder bores of this engine. I measured at the top, middle, and bottom of the stroke. I also did two measurements 90 degrees from each other at each position. The bore should be 3.500 inches with a max at 3.503 inches. The max that I found was 3.501 inches. The pistons have very little movement at any position in the stroke. After talking to my friend I've decided to pull one piston out and have a good look at the rings. Maybe it will help explain why I've seen a lot of oil getting past the rings when it sits. It will also give me a chance to see the bearing on the connecting rod.
I also decided to remove the flywheel (Don't use a jaw puller, use a harmonic puller) and stator to make it easier to handle when I remove the oil pan. These are a heavy engine so any extra metal you can remove makes life easier.
Edited by Mark 149 J., January 14, 2021 - 11:43 PM.