Calico Coatings H-Series Main Bearing - 0.010 in Undersize - Coated - Small Block Chevy MS909H10 11174AB Number 2181 is stock replacement/street

Number 2181 is stock replacement/street legal part for 351W V8s with OEM carburetor

Replacement outer rings are for Aero beadlock wheels and are available in yellow or chrome

the inclusion of a unique "Hygenic-Style" concealed pocket on one end utilizes space in the large center pocket and is specifically designed to keep odors from socks

2002-2006 GMC Sierra 2500 HD

Calico Coatings H-Series Main Bearing - 0.010 in Undersize - Coated - Small Block Chevy MS909H10 11174AB Number 2181 is stock replacement/streetProduct Description: Main Bearing H Series 0. 010 in Undersize Coated Small Block Chevy Calico coated bearings are coated with their CT 1 Dry Film Lubricant coating. CT 1 is specifically engineered to withstand the extreme conditions of today's high performance engines. Professional engine builders enjoy a higher level of confidence with increased embed ability, strength and durability.