Cam Bearings for Buick engines from 1956-present

Clevite 77® cam bearings are precision bored to eliminate the need for machining after installation. This exclusive bearing design features a steel backing for support, a cast-copper lead alloy center for strength and durability, nickel dam for chemical stability, and an electroplated white metal babbitt overlay for slipperiness, conformability and embedability. The intermediate cast-copper lead layer creates and interlocked columnar structure capable of withstanding much heavier pulsating loads than any other bearing design.