JUST THINK ABOUT THIS..... @.010" thats .005" per side to cut the bores if the bores are perfectly round . next , are the bores centered ? you may cut .010" off 1 side...... cut the block first. then measure it. then you order what you actually need. [IF]
you machined the block the first time and know it is square and was cut true you may get by with honing it to .010 over. [a refresh] in my opinion, getting it round and squared are the biggest goals you have ...cyl wall taper and finish will make power and give long life.. dont skimp here...