Michigan Motorsports LS Lower Timing Chain Crank Gear Sprocket Replaces

Michigan Motorsports SI-Series main bearings are recommended for stock or performance engines using factory crankshafts. Michigan Motorsports LS-LT Performance Parts - YouTube Chevy 4.8 5.3 5.7 Rebuild Parts Michigan Motorsports LS Lower Timing Chain Crank Gear Sprocket Replaces Michigan Motorsports SI-Series Bearings Genuine GM 12703627 58x Gray Crankshaft Position Sensor for 2007 Gen... Michigan Motorsports Main Bearings Michigan Motorsports LS Main Crank Bearings - Standard Size SI-Series - Fits 4.8L 5.3L 5.7L 6.0L 6.2L LS Engines - LS1 LS2 LQ4 LQ9 LS3 L92 L94 L76 L77 LY6 L96 - Stock & Performance Applications The bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts.