King B-Series/K-Series Performance Main Bearings (STDX)

King B-Series/K-Series Performance Main Bearings deliver precision engineering for high-performance Honda engines. These STDX standard-size bearings feature advanced metallurgy and tight tolerances to withstand extreme combustion pressures and sustained RPM loads. Engineered for forced induction and naturally aspirated builds, they provide superior load capacity and reduced friction for maximum horsepower transfer. Essential for serious engine builders and racers demanding reliability under competition conditions.