Product Description
Michigan Motorsports SI-Series Rod Bearings -.010" Undersized – Gen III/IV LS
Chevy 4.8 5.3 5.7 6.0 6.2 | Bi-Metal Silicon Aluminum | Set of 8
Michigan Motorsports SI-Series -.010" Undersized Rod Bearings are designed for Gen III and Gen IV LS engines using factory crankshafts that have been turned .010" under on the rod journals. Built from durable bi-metal silicon aluminum construction, these bearings are ideal for stock rebuilds or performance applications requiring precision oil control and long-term reliability. The SI-Series features an improved surface finish to help reduce microscopic ferrite peaks often found on improperly ground or polished nodular cast iron crankshafts, promoting smoother operation and extended engine life. Sold as a complete set of 8 rod bearings.
Key Features & Benefits
- -.010" Undersized for Turned Crankshafts – Designed for factory LS crankshafts that have been machined .010" under on the rod journals during engine rebuilds.
- Bi-Metal Silicon Aluminum Construction – Provides dependable load capacity and wear resistance for stock and moderate performance LS builds.
- Improved Surface Finish – Helps reduce microscopic ferrite peaks on nodular cast iron crankshafts, promoting smoother bearing contact and improved longevity.
- Optimized Oil Clearance – Designed to improve oil control, reduce wear, and minimize excess oil flow, contributing to lower operating noise and vibration.
- Complete Set of 8 – Includes a full set of eight (8) rod bearing pairs to service one V8 engine.
Notes & Installation Information
- For use with factory crankshafts turned .010" undersized on rod journals.
- Always verify crankshaft journal size and clearances during engine assembly.
- Recommended for stock or performance applications using OEM-style crankshafts.
Key Fitments
- Chevrolet Gen III/IV LS 4.8L 5.3L 5.7L 6.0L 6.2L Engines
- Applications using factory-style crankshafts machined .010" under on rod journals
