COMP Cams 207 - Roller CAM Button, Chevy Big BLock

Roller cam lobes are ground flat rather than tapered like a flat tappet cam; it is necessary to provide some means of holding the cam back to the rear of the engine. The thrust button rides between the front of the timing gear and the back of the front cover and can be shimmed for proper end play of the cam. COMP Cams has both the solid nylon button and the roller thrust bearing available for the ultimate in performance.

.945" Length; Ride between the front of the timing gear and the back of the timing cover; Can be shimmed to achieve proper endplay; Solid nylon and roller thrust bearing styles available;