Building or rebuilding an LS engine? These King bearings are what the pros use for serious performance. This set includes both rod and main bearings in standard size, perfect for your 4.8L, 5.3L, 6.0L or other LS-based engines from 1999 up. King bearings are known for their durability and perfect clearances - exactly what you need when you're putting together an engine that needs to handle some power. The material composition provides excellent wear resistance and conformability, which means they'll last through high-RPM use and heavy loads. Whether you're doing a simple refresh or building a high-performance monster, these bearings give you that professional-grade quality without breaking the bank. They fit Vortec, LS1, LS2, LS3 and various other LS-family engines. If you need oversizes, make sure to message us right away since we typically ship standard size. Sometimes we substitute with Clevite or ACL if King is out of stock, but the quality remains top-tier. Seriously, if you want your LS build to be reliable and strong, start with quality bearings like these.