Polymer Bearings - King Bearings - Engine Bearing specialist GMC SONOMA King Engine Bearings CR6625SI King SI-Series Rod Rod Bearings, SI-Series, Silicon Aluminum.1.00mm. This listing is for a King Bearings CR6625SI 1985-2010 Chevy 4.3L Replacement Standard Rod Bearing set 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
