LS Main Crank Bearings SI Series Standard Size For 4.8L 5.3L 5.7L 6.0L 6.2L LS Engines Fits LS1 LS2 LQ4 LQ9 LS3 L92 L94 L76 L77 LY6 L96 Stock And Performance Applications Direct Factory Replacement

Premium LS SI-Series Main Bearing Set, Standard Size
✔️ OEM-spec, standard-fit LS main bearings with tri-metal

These LS main crank bearings from the SI-Series are built to restore precise oil clearance and ward off wear in Gen 3 and Gen 4 LS engines. They’re ideal for both OEM rebuilds and high-performance builds, including daily drivers and LS swaps.

✅ SI-Series main bearings in standard size for direct OEM replacement
✅ Tri-metal bearing material for high load capacity and durable heat dissipation
✅ Maintains proper oil clearance to reduce friction and wear
✅ Compatible with Gen 3 & Gen 4 LS engines (4.8L, 5.3L, 5.7L, 6.0L, 6.2L)
✅ Suitable for stock and performance LS builds, including daily drivers and swaps

💡 What is an LS main crank bearing set used for in engine builds?

It's a critical wear part that maintains crankshaft alignment and oil clearance under heavy load.

- essential for maintaining crank clearance and reliable oil flow in LS engines - supports higher loads in daily driver and high-performance LS builds - tri-metal construction delivers better heat dissipation and wear resistance