Not Ranked
Serious builders use plastiguage to CONFIRM their measurments! Like measuring twice. Good chance he didn't spin a bearing, which means good chance there is no substantial crank damage. Re-balance??? If no crank damage I wouldn't go there. Heck, I might not do a balance anyway depending on what kind of "build" I was doing! Drop the pan and see how bad it is before you go to far with it.
If he were one my CUSTOMERS,,,OR,,,,he's building a "race" motor, yeah, different "rules" would apply.
But Simon built this motor himself, my hats off to him!! I think he should keep it simple, unless he's ready to throw in the towel and hire a "proffesional". But heck, that takes all the fun out of it.
Ernie
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