The ATI crankshaft damper is a 6.325-inch short steel unit for Ford small-block V8s with 28.2 oz-in external balance (not 302), supplied with supercharger provision and a four-bolt mount. It measures 4 inches long and is set to B-timing for compatible engines. This damper is intended where blower clearance and correct timing orientation are required; verify balance spec and bolt pattern before ordering.
ATI Damper - 6.325in - ST - Ford SB V8 - 28.2 Ext Bal (Not 302) - 4 Bolt w/SC - 4in Long - B Timing