Cosworth Rod Bearing Set Size 1 - Subaru WRX/STI EJ25 EJ20 Engines

Engine bearings are one of the most vital components within an engine and are often overlooked when considering high performance upgrades. Performance engineered, multi-layer bearings generate less heat than normal bearings by reducing friction. Cosworth Race bearing sets feature a unique combination of design, metallurgy and engineering to deliver what drivers expect from high performance Tri-Metal engine bearings.

Features:
High strength overlay plate with reduced thickness
Hardened steel backing on all connecting rod
Increased crush and elimination of flash plating
3/4 grooving on Main Bearings providing optimum oil supply
Tight consistent wall tolerances

Size 0 bearings have .001" less oil clearance than factory
Size 1 bearings are a nominal standard size and are used for most applications
Size 2 bearings feature an additional .001" more oil clearance than factory