ACL Race Series Main Bearing Set Fits VW 1.3/1.5/1.6/1.8/2.0L 5M1644HX-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: Lower-Material: F780-Min. Std Shaft Size: 53,958 mm / 2.1243 in-Max Std Shaft Size: 53,978 mm / 2.1251 in-Min. Std Tunnel Size: 59 mm / 2.3228 in-Max Std Tunnel Size: 59,019 mm / 2.3236 in-Max Wall at Crown: 2,489 mm / 0.0980 in-Max Overall Length: 18,49 mm / 0.7280 in (1644H), 18,49 mm / 0.7280 in (1648H)