COMP Cams roller-bearing cam thrust button (.945" long) is a replacement thrust component for timing set #2110 that prevents camshaft fore-and-aft movement. Often required when converting to roller cams and lifters, it installs at the front of the cam between the timing gear and the timing cover and can be shimmed to set proper camshaft endplay on Chevrolet 396–454 big-block applications.
COMP Cams Cam Button Fiber CB 396-454 F