ACL Race Series Big End Bearing Set

The ACL Race Series combines design, metallurgy and engineering to deliver what drivers expect from high-performance tri-metal engine bearings. Designed to withstand higher rpm, these bearings are highly respected among Subaru engine builders.

• High-strength overlay plate with reduced thickness for better fatigue properties
• Hardened steel backs on all rod bearings for better bearing support and retention in the housing
• Increased crush for better bearing retention
• No flash plating on the back of the bearings, for better heat transfer and maximum grip between bearing and housing
• Increased eccentricity to compensate for bore distortion at high rpm and to help form hydrodynamic oil films
• Tight, consistent wall tolerances to help maintain consistent clearances
• Enlarged ID chamfers on the bearing edges where required, to accommodate the large fillet radius of performance crankshafts