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The ATI APP damper is a 7.074-inch steel damper specified for Chevy BB 454/502 externally balanced engines with a Chrysler front pattern, six-bolt mounting, and second-quarter keyway. It includes supercharger provisions and matches the listed 7.074in diameter and mounting details for applications that need the Chrysler-front pattern and the specified bolt and keyway arrangement.
ATI Damper - 7.074in - ST - Chevy BB 454/502 - Ext Bal Chrysler Front - w/SC - 6 Bolt - 2nd 1/4 Key
