The ATI crankshaft damper is a 6.325-inch aluminum balancer specified for Chevy big-block engines with a three-ring construction and aluminum hub. Sized for big-block Chevy applications, this damper provides the required diameter and mounting pattern for correct accessory spacing and direct-fit replacement in those engines.
ATI Damper - 6.325in - Alum - Chevy BB - 3 Ring - Alum Hub