Description
A quality main bearing set is foundational to engine longevity and reliability, especially in high-performance LS applications where sustained boost and elevated RPM put constant stress on your crankshaft journals. The MB5293SI delivers OEM-grade precision with Clevite SI construction, ensuring proper clearances and oil film integrity under demanding conditions. Whether you’re rebuilding after a failure or performing preventative maintenance on a built engine, this kit eliminates guesswork and delivers the durability your investment demands.
- Main Bearing Set
- Clevite SI Construction
- GM LS-Series Engines
- Standard Clearance
- Complete Kit
- OEM-Grade Materials
- Precision Engineered
- MPN: MB5293SI






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