I see people running this setup all day without cutting the pistons . The clearences are very tight but they are there . I had a block that had 15 thousanth taken off and i didnt lnow so when i tore the motor down after a balance shaft bearing took a shit (years ago). I could see were the valves were barely hitting the piston . I have cut them every since better be safe then sorry plus i dont know how peopletreat there motor so if im building it (or my dad) were doing everything we can to make sure it last. It has our name on it .

Bobby nothing was balanced by me and no need why do you ask ? The rods come balanced to each other . I lied we do rebalance the pistons after we cut them lol.My dad took his crank to a big time v8 builder around here that we do alot of work with to see how balanced it was from the factory even though i told him it was fine . He likes to check shit lol. The guy checked it said he would be happy to get his cranks that balanced and thats good enough for me . I dont make power to 9,000 hell i hardley ever rev my motrs past eight the balance is fine they stay togther with no problems.