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: 5M1985HX Bearing size: STD Bearing half type: Upper & lower Bearing material: F780 Technical data (mm) Max overall length: 20 Max shaft size: 55 Max tunnel size: 59.02 Max vertical oil clearance: 0.098 Max wall at crown: 1.989 Min shaft size: 54.98 Min tunnel size: 59 Min vertical oil clearance: 0.038 Technical data (in) Max overall length: 0.7874 Max shaft size: 2.1654 Max tunnel size: 2.3236 Max vertical oil clearance: 0.0039 Max wall at crown: 0.0783 Min shaft size: 2.1646 Min tunnel size: 2.3228 Min vertical oil clearance: 0.0015 Engine code K20C1 Application Honda K20C1 1996cc Inline4 DOHC 4v Turbo