honda motors are internally balanced to a certian standard when stock. regardless of what he said balnce the whole rotating assembly together crank rods pistons etc.

also if your planning on using the main studs you realize the mains need to be line honed to make sure everything is perfectly round or you will run into problems there. if your not shooting for big power sell them and stick with factory main bolts they hold upwards of 500 hp with no problems