ACL Race Series Main Bearings for BMW M20/M50/M52/M54 80.0mm Bore .001in Clea...

ACL Race Series Main Bearings for BMW M20/M50/M52/M54 (80.0mm Bore) Brand: ACL — Race Series main bearings engineered for high-performance BMW engines. Designed to the exacting standards required by M20, M50, M52 and M54 blocks, these bearings deliver durable protection under race and street conditions. Applications: BMW M20 / M50 / M52 / M54 engine families Bore & Stroke: 80.0mm bore, 66.0mm stroke (fits 1919cc/compatible machining) Clearance: .001 in (standard race clearance) Set: Standard main bearing set for crankshaft support ACL Race Series bearings use advanced materials and surface treatments to resist wear, reduce friction and improve oil film stability under extreme RPM and load. Ideal for engine builds where reliability and performance matter — from track use to high-output street engines. Benefits: improved load capacity, consistent clearances, superior oil retention, and precision manufacturing for long-term durability. Install with recommended clearances and lubrication procedures. For best results, match to crank journal size and follow engine builder specifications.