Evergreen MRB1937/0/0 Honda Acura 2.2L H22A1 H23A1 FF22A1 F22A4 F22A6 F22B1 Crankshaft Main Bearings Connecting Rod Bearings (Standard Size) Fits: Honda Acura 2.2L H22A1 H23A1 FF22A1 F22A4 F22A6 F22B1 (see description below) High Strength Overlay Plate with Reduced Thickness for Improved Fatigue Properties. Hardened Steel Backs on All Rod Bearings to Improve the Support of the Bearing Lining And Assist with Bearing Retention in the Housing Increased Crush for Improved Bearing Retention. Elimination of Flash Plating on the Back of the Bearings to Improve Heat Transfer Through the Bearings And to Maximize the Grip Between the Bearings and Its Housing Increased Eccentricity to Compensate for Bore Distortion At High Rpm And to Assist in the formation of Hydrodynamic Oil Films. Optimize Bearing Load Carrying Surface Area And Oil Flow to the Conrod Bearings