Engine bearings are crucial for the engine to perform effectively. During the upgrade process, this vital component is rarely the first choice. Generating less heat, a higher performing, multi-layer engine bearing will simply perform better. Cosworth's uniquely designed Main Bearing Set combines design, metallurgy, and
engineering to provide continuous performance under the most extreme
conditions.  .

Mixing and matching the bearing half-shells will provide incremental changes in the amount of oil clearance. Measuring the bearing clearances is crucial prior to selecting the appropriate bearing size to ensure optimal performance.