ACL Bearings 5M1342-STD High Performance Tri-Metal Main Bearing Set

The ACL Bearings 5M1342-STD is a high-performance tri-metal main bearing set designed for Opel CIH engines ranging from 1.5L to 2.4L. This standard size bearing set features ACL's advanced Duraglide F780 tri-metal copper-lead construction, engineered to deliver exceptional durability and load-carrying capacity for performance and racing applications.

Key Features:

• Tri-metal copper-lead construction for superior load capacity and durability
• High-strength overlay plate with reduced thickness for improved fatigue resistance
• Hardened steel backing to improve bearing lining support and retention
• Designed to withstand higher RPM conditions and increased stress
• Increased crush for improved bearing retention in the housing
• Elimination of flash plating on bearing backs for better heat transfer and grip
• Increased eccentricity to compensate for bore distortion at high RPM
• 3/4 grooved main bearings to optimize load surface area and oil flow
• Tight, consistent wall tolerances for maintaining proper clearances
• Enlarged ID chamfers to accommodate large fillet radius on performance crankshafts

ACL's tri-metal bearings are specifically engineered for high-load applications where standard bearings would fail. The precision manufacturing and advanced metallurgy provide the endurance required for demanding performance builds, whether street or track. Suitable for Opel Manta, Ascona, Omega, and other vehicles equipped with CIH engines.