you shouldn't really need to bore it out too much I know je makes pistons for the h23 that are 20 over (87.5mm)... as far as rods goes crower are good and so are eagle... honda cranks are generally pretty reliable but if you're rebuilding you might as well do a new crank, I now eagle makes cranks for hondas but you'll need to do some research to see if they make them for the 2.3... you will definately have to resleeve it, personally I'd go with darton or golden eagle... that should make your bottom end easily withstand 400hp or more.