King "Armor Coated" Main Bearings Set for 1997-2014 LS Engines 4.8L 5.3L 5.7L 6.0L 6.2L LS1AMS Racing Armor Coated King Brand SI Series Main Bearings for GM GEN IV LS Engines Fits 1997 2014 Gen 3 4 LS Based Engines with Stock Crankshafts 4. 8L 5. 3L 5. 7L 6. 0L 6. 2L Bearing Details King Bearings' bi metal SI material blends Aluminum with 2. 5 3% Silicon, providing strength. Ideal for medium load engines, particularly engines using nodular cast iron crankshafts. It excels as a Lead free OE replacement Bearing. AMS Armor Coating Details Our