New set of China Forged 1.4 over sized ratio rockers. I have already set up the side play with new shims from cb performance and have installed tool steel adjuster cups. The set comes with chromoly head mounting hardware and nylon lock nuts. Look closely at the rocker arms and compare to bergs listed, these are the very same ones that gene berg sells and has advertised now. All new China sets are now ranging between 1.42-1.46. Pick your cam accordingly. China rockers are fully capable to handle high lifts. Currently there are no bad reviews specifying the arms are breaking.