Quote Originally Posted by RobbieDA
Are you sure you want to bore out the block that much? I thought when Honda took it to 82mm for the B21, the walls were too thin and that's why they went FRM?
Yea, its been done tons of times with no issues. You have to think of it this way....its only taking a milimeter out all the way around the cylinder. Theres plenty of room. The B21 is a 83mm stock. Thats why Im using the new Honda b21 pistons.