Clevite CB-831A Engine Connecting Rod Bearing Pair Designed to be the highest quality replacement aluminium engine bearings available, Clevite Bimetal engine bearings set the standard Relatively harder aluminium alloy wears well, interacts closely with journal surfaces for strength Recommended for use with nodular iron crankshafts Manufactured with 100% bored inside diameters for optimum surface characteristics and consistent precision Manufactured to meet or exceed OE specifications