COMP Cams Roller Cam Button Chevy SmallSet the camshaft endplay on your Chevrolet 265 400 and V6 with our . 795" long roller bearing thrust button. This roller bearing thrust button can be shimmed as needed to adjust the endplay. Catalog User 1 This Part Fits: Year Make Model Submodel 1977,1980 Buick Century Base 1977 1979 Buick Century Custom 1980 Buick Century Estate 1978 1980 Buick Century Limited 1978 1979 Buick Century Special 1978 Buick Century Sport 1978 Buick LeSabre Base 1978