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COMP Cams camshaft thrust roller bearing button, 0.660 in long, sets camshaft endplay on Buick V6 applications from 1977.5 through 1987. It fits between the timing gear and timing cover to prevent forward and backward cam movement, often needed when converting to roller cams and lifters. The button can be shimmed to achieve the proper camshaft endplay for reliable operation.
COMP Cams Cam Button Adjust Buick V6 Hy
