The Speedmaster PCE235.1027.02 main bearings are engineered specifically for Chevy GM LS-series engines, offering a .010 undersize fitment to accommodate reground crankshafts. Compatible with 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L LS applications, these bearings are a reliable choice for engine rebuilds requiring precise clearance and consistent performance.
Whether you're refreshing a high-mileage LS powerplant or building a performance street or track engine, these Speedmaster main bearings deliver the quality fitment needed for long-term durability. Designed as a direct replacement for worn or damaged OEM bearings, they help restore proper crankshaft clearances across a wide range of popular GM LS displacements.
