ACL Bearings 8B1578H-.025 High Performance Rod Bearing Set Oversized - 0.025mm

ACL Race Series performance engine bearings are manufactured to exacting tolerances with precision measurement systems that deliver consistent accuracy to key characteristics like wall thickness and crush. This 0.025mm oversized rod bearing set is engineered for BMW N63 and S63 V8 engines, designed to withstand the demanding conditions of high-performance and motorsport applications.

Key Features:

• High strength steel backing with higher tensile strength improves rod bearing strength and retention
• High strength overlay plate with reduced thickness for improved fatigue properties
• Increased crush improves bearing retention from higher radial contact pressures and heat dissipation
• Increased eccentricity allows for compensation for bore distortion and assists in hydrodynamic oil film formation
• Hardened steel backs on all rod bearings improve support of the bearing lining and assist with bearing retention
• Extended oil grooves and tapered groove run-out provide less interruption to oil supply and smooth cutoff to avoid pressure pulsing

Race Series rod and main bearings are standard components in race engines that have set records and won championships from Mexico to Bonneville, from sport compact drift racing to small block NASCAR, IHRA and NHRA competitions. These high performance tri-metal engine bearings are designed to withstand higher RPM conditions.