ACL Bearings 5M8312HO/S5-.025 Performance Main Bearing Set

The ACL Bearings 5M8312HO/S5-.025 is a high-performance main bearing set engineered for demanding applications. These precision bearings feature ACL's advanced tri-metal construction with a steel backing, copper-lead intermediate layer, and a proprietary overlay material designed to provide superior load capacity and wear resistance.

Key Features:

• 0.025" undersize for proper fitment on reground crankshafts
• High Output (HO) specification for performance and racing applications
• S5 coating technology for enhanced durability and protection
• Tri-metal construction for superior strength and longevity
• Precision manufactured to strict tolerances for optimal oil clearance
• Designed for high-load and high-RPM applications

ACL Race Series bearings are trusted by engine builders worldwide for their consistent quality and performance. This undersize bearing set allows for proper clearances when using a crankshaft that has been machined 0.025" undersize, ensuring optimal engine performance and longevity in rebuilt applications.