ACL Race Series Conrod Bearing Set Fits Mazda L3 2.3L Duratec 4B8170H-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: Identical Halves-Material: F781-Min. Std Shaft Size: 49,98 mm / 1.9677 in-Max Std Shaft Size: 50 mm / 1.9685 in-Min. Std Tunnel Size: 53,025 mm / 2.0876 in-Max Std Tunnel Size: 53,045 mm / 2.0884 in-Max Wall at Crown: 1,5 mm / 0.0591 in-Max Overall Length: 17 mm / 0.6693 in