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SKU: MB5875SI010 / UPC: 611500626500
King Engine Bearings GM Vortec / LS-Series Gen III Main Bearing Set Bi-Metal Bearings for GM LS Engines
The King Engine Bearings Main Bearing Set is engineered for precision and durability, these bi-metal bearings deliver unmatched performance for high-performance and stock replacement applications. Crafted with King’s advanced aluminum-silicon alloy, this bearing set ensures reliable load capacity and wear resistance, making it the ideal choice for enthusiasts, racers, and professional engine builders seeking dependable performance for their GM LS engines.
Why Choose King Engine Bearings?
King Engine Bearings has been a trusted name in the automotive industry since 1960, specializing in high-quality engine bearings for a wide range of applications, including automotive, racing, and heavy-duty engines. The MB5875SI010 main bearing set is designed specifically for GM Vortec and LS-Series Gen III engines, offering precise fitment and robust construction. With a 0.010" undersize for custom crankshaft applications, these bearings provide a perfect balance of strength and reliability, ensuring your engine performs at its best under demanding conditions.
What’s Included in the Purchase?
- Complete Main Bearing Set: 5 pairs of bi-metal main bearings (upper and lower shells) for GM Vortec / LS-Series Gen III engines.
- Material: Bi-metal construction with an aluminum-silicon base for enhanced strength and wear resistance, ideal for medium-load engines or nodular cast iron crankshafts.
- Size: 0.010" undersize for precise crankshaft fitment.
- Part Number: MB5875SI010
- UPC: 611500626500
- Warranty: Manufacturer’s warranty included (register via King’s i-King system for warranty activation and tracking).
Fitment Specifications
The King Engine Bearings MB5875SI010 main bearing set is designed to fit the following GM Vortec / LS-Series Gen III engines:
- Year Range: 1997–2007 (confirm specific model compatibility)
- Make: Chevrolet, Cadillac, Buick, GMC, Pontiac
- Models:
- Chevrolet: Camaro (1997–2002), Corvette (1997–2004), Silverado 1500 (1999–2007), Tahoe (2000–2007), Avalanche (2002–2006), Suburban 1500 (2000–2007)
- Cadillac: CTS-V (2004–2007), Escalade (1999–2007)
- Buick: Rainier (2004–2007)
- GMC: Sierra 1500 (1999–2007), Yukon (2000–2007)
- Pontiac: GTO (2004–2006)
- Engine Sizes: 4.8L, 5.3L, 5.7L, 6.0L (Gen III LS engines, including LS1, LS6, LQ4, LQ9)
Note: Always verify fitment with your specific engine and crankshaft specifications before purchase.
Technical Specifications
- Material: Bi-metal (aluminum-silicon alloy with 2.5–3% silicon content) for enhanced durability and compatibility with medium-load engines.
- Design Features:
- Bull’s Eye Tolerance™: King’s proprietary manufacturing process ensures precise wall thickness with minimal variation for a perfect fit.
- Lead-Free Construction: Environmentally friendly and ideal for modern engines, including start-stop and hybrid applications.
- Non-Resizable: Bearings are precision-finished and stamped with size on the steel back for easy identification.
- Application: Suitable for stock rebuilds, performance builds, and racing applications requiring reliable main bearings.
Part Weight and Shipping Dimensions
- Weight: Approximately 1.2 lbs.
- Shipping Box Dimensions: 11.51" (L) x 4.29" (W) x 2.0" (H)
Why These Bearings Stand Out
The MB5875SI010 main bearing set is crafted with King’s advanced bi-metal technology, offering a robust aluminum-silicon alloy that excels in medium-load applications. Unlike traditional bearings, King’s SI-series bearings are designed with precision tolerances and lead-free materials, ensuring compatibility with modern GM LS engines and nodular cast iron crankshafts. Whether you’re rebuilding a stock 5.7L LS1 for a Camaro or upgrading a 6.0L LQ9 for a high-performance Silverado, these bearings provide the reliability and performance needed for long-lasting engine operation.
Installation Notes
- Precision Fitment: Bearings are pre-sized and cannot be resized or scuffed. Verify the 0.010" undersize is appropriate for your crankshaft.
- Inspection: Check each bearing shell for the stamped size on the steel back to ensure correct installation.
- Professional Installation Recommended: For best results, have a licensed mechanic or engine builder install the bearings to ensure proper alignment and clearance.
Purchase with Confidence
King Engine Bearings are backed by decades of expertise and rigorous quality control, making them a go-to choice for engine builders worldwide. The MB5875SI010 set is available through trusted retailers, with fast shipping options and manufacturer warranty support. Register your bearings via King’s i-King system to activate your warranty and track your purchase.
Order the King Engine Bearings Main Bearing Set today and experience the reliability and performance trusted by racers and builders for GM Vortec and LS-Series Gen III engines. Perfect for your next engine rebuild or performance upgrade, these bearings deliver the quality and precision you need to keep your LS engine running strong.
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