ACL Bearings 8B1580H-.25 Performance Rod Bearing Set Oversized BMW - 25mm S65 V8

The ACL Bearings 8B1580H-.25 is a high-performance connecting rod bearing set engineered specifically for the BMW S65 4.0L V8 engine found in the E90/E92 M3. These bearings feature a .25mm oversize dimension, designed for engines that have had their crankshaft journals machined or for applications requiring tighter clearances and improved oil film thickness.

Key Features:

• Precision-engineered .25mm oversize for machined crankshafts
• ACL Race Series construction with tri-metal composition for maximum durability
• High-performance polymer coating reduces friction and improves break-in
• Engineered for high RPM and high load applications
• Direct replacement for BMW S65 V8 connecting rod bearings
• Complete set includes bearings for all eight connecting rods

ACL Race Series bearings are manufactured to exacting tolerances and feature advanced materials designed to withstand the extreme conditions of performance and racing applications. The tri-metal construction provides excellent fatigue resistance, while the specialized coating ensures optimal oil retention and reduced wear during critical startup and high-stress operation.