how do you check the clearance on the 'top' bearings? (The bearings between the crank & block). Do you just go by the clearance on the cap-side? If the clearance is too big or two small, do you replace both, or do you always follow the crank/block stamp for the block side and replace only the bridge/cap side? Is there ever a time when you will have different size bearings on the same journal? (one on the top, one on the bottom)?

thx

 

oh also - do the main caps have bearing stamps on them, as a size to start with?