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: 4B8325H Bearing size: .025 Bearing half type: Identical halves Bearing material: F781 Technical data (mm) Max overall length: 13.35 Max shaft size: 48 Max tunnel size: 51.024 Max vertical oil clearance: 0.063 Max wall at crown: 1.504 Min shaft size: 47.976 Min tunnel size: 51 Min vertical oil clearance: 0.035 Technical data (in) Max overall length: 0.5256 Max shaft size: 1.8898 Max tunnel size: 2.0088 Max vertical oil clearance: 0.00248031 Max wall at crown: 0.0592 Min shaft size: 1.8888 Min tunnel size: 2.0079 Min vertical oil clearance: 0.00137795 Engine code FB20 / FB25 Application Subaru FB20 1995cc Flat4 DOHC 4v Subaru FB25 2498cc Flat4 DOHC 4v