I am pretty sure it’s .010 over, as that is what is stamped into the top of the piston. Will confirm soon - I’ll be taking it to the machine shop tomorrow. It does seem like the crack is below the lowest point of stroke.
The shiny spot may be where I was rubbing at the bottom of the bore with some carb cleaner and a rag.
Also, sorry about the large pics - I tried a different way of compressing and uploading them but they were so grainy and mushy you couldn’t really see the crack in question.
I’m sure this engine has been gone through before. The crank that’s in there now has “NAPA” written on it in paint pen, and the journal is egg-shaped and varies from 1.481” to 1.486” diameter (roughly; I measured with some digital calipers).
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