ACL Bearings 8B1580H-STD Race Rod Bearing Set for BMW S65B40 V8

The ACL Bearings 8B1580H-STD is a high-performance race rod bearing set engineered specifically for the BMW S65B40 4.0L V8 engine found in the E90/E92/E93 M3 models. These connecting rod bearings are designed to meet the demanding requirements of high-RPM racing and performance applications where standard bearings cannot provide adequate durability.

Key Features:

• Race-grade construction with enhanced clearances for high-performance applications
• Tri-metal design featuring a steel backing, copper-lead intermediate layer, and polymer overlay for superior strength and wear resistance
• Standard (STD) size for direct replacement in stock-bore connecting rods
• Complete set for all eight connecting rods in the S65B40 V8 engine
• Engineered to handle increased loads, higher RPM, and extreme combustion pressures
• Enhanced oil clearances optimize oil flow and reduce friction at high engine speeds

ACL Race Series bearings are a proven choice among professional engine builders and racers worldwide, offering exceptional reliability in forced induction, naturally aspirated racing, and high-performance street applications. These bearings provide the durability needed for track use while maintaining the precision tolerances required for BMW's high-revving S65 powerplant.