I am rebuilding my motor. I am going to use SpeedPro/TRW forged pistons. Do I need to balance the rotating assembly? Has anybody ran these pistons without balancing?
I believe the key to using the TRW pistons without balancing is to use the heavy wrist pins that come in them. There are lighter pins available, at which point balancing is required. For high HP/RPM levels balancing is always best!