Does align honing the main journals usually make them oversized or does this demension need to stay at the standard measurement? Also does micropolishing a crankshaft usually take a few ten thousandths off the journals? I would like to do my first motor this summer and am a little confused about setting this measurement correctly. I plan on purchasing a new crank and using a used block. the goal is 400 hp. it is a SBC and I plan on buying a 3.75 stroke crank.