ACL Bearings 6B2455H-.025 Race Series Main Bearing Set Porsche - 911 930

The ACL Bearings 6B2455H-.025 is a high-performance Race Series main bearing set engineered specifically for Porsche 911 and 930 models. This precision-manufactured bearing set features tri-metal construction designed to withstand the extreme demands of racing and high-performance flat-six applications.

Key Features:

• Race Series performance main bearing set with tri-metal construction
• .025mm (.001 inch) undersize for machined crankshafts
• Precision manufactured to exacting tolerances for consistent wall thickness and crush
• No flash plating for improved bearing retention and heat transfer
• Optimized for high-RPM conditions with excellent seizure resistance
• Maintains consistent oil film under extreme operating conditions

ACL Race Series bearings are the choice of leading engine builders in motorsports, from drift racing to professional competition. The unique combination of design, metallurgy, and engineering delivers the endurance and capability needed for performance builds where reliability is critical.