Description
Main bearing wear directly impacts engine longevity, oil pressure stability, and overall reliability—especially in performance applications where tight tolerances are non-negotiable. This precision-engineered main bearing set delivers the exact fit and material quality needed to restore or upgrade your small block Chevy engine’s foundation. Whether you’re rebuilding after high-mileage use or building a performance engine, these bearings ensure consistent performance and durability.
Technical Specifications:
- Small block Chevy fitment
- 0.020″ undersize
- Precision-engineered construction
- Friction-reducing design
- High-quality materials
- Bolt-on installation
- Complete kit included
- MPN: 140M20









