take a look at roller burnishing tools. I've used cogsdill & elliot with much success. been awhile but if I remember correctly you bore (or ream) within a few "tenths" then run the burnisher. you can get .0002 size control and 2-8 microinch surface finish, besides a better bearing surface because of the work hardening.
For OD work look at the cogsdill diamond burnishers. Finish turn a bit oversize then burnish to an 8 finish and .0003 tolerance on size. Did this on crankshaft journals very reliably on a line with a 23 second takt time (that included turning and burnishing).