The ATI crankshaft damper is a 6.325-inch steel damper specified for Oldsmobile V8 engines in 267–455 cubic inch displacements. Its three-ring configuration provides the mounting pattern and balance features required for engines using this diameter and ring arrangement. This direct-fit style unit matches the diameter and ring count found in original dampers for those Olds V8 applications.
ATI Damper - 6.325in - Steel - Olds V8 267-455 - 3 Ring