ACL Race Series Tri-Metal Main Bearing Set Fits Subaru FA20, FB20, FB25 4Cyl 5M8312H-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: F780-Min. Std Shaft Size: 67,985 mm / 2.6766 in-Max Std Shaft Size: 68,009 mm / 2.6775 in-Min. Std Tunnel Size: 73 mm / 2.8740 in-Max Std Tunnel Size: 73,016 mm / 2.8746 in-Max Wall at Crown: 2,505 mm / 0.0986 in-Max Overall Length: 17,6 mm / 0.6929 in (8312H), 14,5 mm / 0.5709 in (8313H), 22,92 mm / 0.9024 in (8314H(F))