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: 8B745H Bearing size: 1 Bearing half type: Upper & lower Bearing material: F781 Technical data (mm) Max overall length: 21.38 Max shaft size: 50.8 Max tunnel size: 53.98 Max vertical oil clearance: 0.077 Max wall at crown: 1.577 Min shaft size: 50.775 Min tunnel size: 53.967 Min vertical oil clearance: 0.013 Technical data (in) Max overall length: 0.841730608 Max shaft size: 1.999996018 Max tunnel size: 2.12519262 Max vertical oil clearance: 0.00303149 Max wall at crown: 0.062086491 Min shaft size: 1.999011768 Min tunnel size: 2.12468081 Min vertical oil clearance: 0.00051181 Engine code 265 / 283 / 302 Small Pin / 327ci Small Pin Application Chevrol