[masraum]

Exactly, do a good thorough job as close to factory or better specs as possible and is often combined with balancing to give the most power, smoothest running, and most reliable engine possible.
Or, at least, that's my understanding. Tedius, but there shouldn't be any other way. It seems everything should be mic'ed and checked, not just plastigage and see if it turns when put back together.
That explains why rebuilt engines (in general, not P-specific) rarely seem to last as long as factory engines, even the big Domestic car co's.