King Racing Conrod / Big End Bearings (-.0005") for BMW M3, Z3 & Z4 3.2 S54B32. Conrod / Big End Bearings -. 0005" extra Oil ClearanceFits Models:M3, Z3, Z4. Bearings (503). These are uprated bearings that have specifically produced for the S54B32 engineThese bearings are also available in 0.25mm & 0.50mm.