ACL Race Series Conrod Bearing Set Fits Custom Performance 1.889 8B1665HD-STD

Located in Australia, ACL has been providing an extensive replacement product range to a global aftermarket for over 70 years. Their reputation for robust metallurgy, quality, precision, innovation &, of course, performance shows through their products.SPECIFICATIONS-High Strength Overlay Plate With Reduced Thickness for Improved Fatigue Properties-Hardened Steel Backs on All Rod Bearings to Improve Bearing Lining & Retention-Increased Crush for Improved Bearing Retention-Elimination of Flash Plating on Back of Bearings & Maximise Grip Between Bearings & Housing-Increased Eccentricity to Compensate for Bore Distortion at High RPM & Assist in Formation of Hydrodynamic Oil Films-3/4 Grooved Main Bearings to Optimise Bearing Load Carrying Surface Area & Oil Flow to Conrod Bearings-Tight Consistent Wall Tolerances to Help Maintain Consistent Clearances-Enlarged ID Chamfers on Bearing Edges Where Required to Accomodate Large Fillet Radius on Performance Crankshafts-Half Type: Upper & Lower-Material: F781-Min. Std Shaft Size: 47,968 mm / 1.8885 in-Max Std Shaft Size: 47,981 mm / 1.8890 in-Min. Std Tunnel Size: 51,181 mm / 2.0150 in-Max Std Tunnel Size: 51,194 mm / 2.0155 in-Max Wall at Crown: 1,588 mm / 0.0625 in-Max Overall Length: 22,75 mm / 0.8957 in