I have a b18b bare block with only waterpump and main caps. Rons precision machine in utah hottanked it and bored it 20 over. Wasn't honed by deck plate yet and 3 inserts were supposed to be put into the block for the head bolts. But i ran into a killer deal with a golden eagle sleeved block at 83mm. So i didn't want to invest anymore money into it. make a decent offer..