Many new OE engines are now utilizing aluminum bearings to address cost and environmental concerns. Clevite BiMetal™ engine bearings are made with a composition of aluminum silicon for excellent wear and seizure resistance, without the need for high load carrying capacity. They offer a number of quality features that rebuilders, service technicians, and vehicle owners will appreciate. Carrying on a tradition of durability and dependability, Clevite BiMetal engine bearings feature 100% leadfree aluminum silicon. Engineered with 60% more silicon than comparable competitive replacements, they provide better conditioning of journal surfaces. This results in greater seizure resistance and better wear resistance.  Clevite BiMetal bearings are manufactured with 100% bored inside diameters for optimum surface characteristics and consistent precision. Where applicable, straight shell main bearings include an umbrella groove for improved oil control and oil pressure. Designed to be the highest quality replacement aluminum engine bearings available, BiMetal engine bearings from Clevite set the standard.