Clevite 77 TriMetal™ Engine Bearings
Since their development of the first precision insert-type bearing in 1929, Clevite 77 engine bearings have set the pace for engineering quality. Built above industry standards for strength and durability. Clevite 77 performance engine bearings utilize a superior TriMetal™ design first developed by Clevite over 50 years ago and perfected over time. This design incorporates the strength of a copper-lead alloy layer on a precision steel back and finally, a precision electroplated white metal "babbit" surface layer. TriMetal™ is an ideal design, producing a degree of conformability, embedability, slipperiness and fatigue resistance, not found in original equipment and competitive bimetal bearings.
Fits: LS1 5.7 and Chevrolet 5.3L