ACL bearings are used for tuning and engine upgrades where you want better quality with higher bearing capacity than normal standard bearings. Improvements of material, dynamic thickness, heat conduction, oil grooves and oil distribution are some of the points that make ACL one of the leading bearing manufacturers. Bearing data Part number: 4SM2222H Bearing size: 20 Bearing half type: Lower Bearing material: F780 Technical data (mm) Max overall length: 22.07 Max shaft size: 63.495 Max tunnel size: 68.275 Max vertical oil clearance: 0.077 Max wall at crown: 2.372 Min shaft size: 63.47 Min tunnel size: 68.25 Min vertical oil clearance: 0.011 Technical data (in) Max overall length: 0.868895908 Max shaft size: 2.499798173 Max tunnel size: 2.687986775 Max vertical oil clearance: 0.00303149 Max wall at crown: 0.093385641 Min shaft size: 2.498813923 Min tunnel size: 2.687002525 Min vertical oil clearance: 0.00043307 Engine code 3.8L Ecotec / 3.8L Ecotec S/C / 3.8L V6 Application Holden 3.8L E