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Fluidampr harmonic balancer adapter hub for externally balanced BBC Chevy 454–502ci engines accepts dual keyways (3/16" and 1/4") and fits Fluidampr part numbers #800181 and #80252E. Offered as the hub only, this adapter maintains recommended press fit tolerances and matches the externally balanced Big Block Chevy configurations specified in the product information.
Fluidampr BBC Ext Balanced Dual (3/16in & 1/4in) Keyway Harmonic Balancer Adapter Hub (Hub Only)
