ACL Bearings 5M1695H-STD Race Series High Performance Main Bearing Set

ACL Race Series performance engine bearings are manufactured to exacting tolerances with particular attention paid to wall thickness accuracy, ensuring reliable fit and consistent clearances. These bearings feature a tri-layer metal construction with hardened steel backing designed to withstand high RPM conditions, high stress loads, and high temperatures.

Key Features:

• High strength lead-tin-copper overlay plate with reduced thickness for increased fatigue strength
• Hardened steel backing to assist with bearing retention under high loads
• Multiple layers including nickel barrier and high fatigue strength copper-lead lining
• Enlarged ID chamfers on bearing edges to accommodate performance crankshafts
• 3/4 groove design provides optimum oil supply and maximizes load carrying capacity
• Increased crush and tighter wall tolerance for better seating
• Increased eccentricity improves shape adaptation to compensate for bore distortion at high speed operation

ACL Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world, used in race engines that have set records and won championships from Mexico to Bonneville. These bearings do not feature the typical silvery tin flash found on regular aftermarket bearings, as this finish can move under high loading and heat, causing high spots and bearing distortion.