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Fluidampr harmonic balancer adapter hub for externally balanced SBC Chevy 400ci engines accepts dual 3/16" keyways and fits Fluidampr part #720111. Supplied as the hub only, it preserves the correct key configuration for externally balanced small block Chevy 400 applications and is intended to interface with the specified Fluidampr damper components.
Fluidampr SBC Ext Balanced Dual (3/16in & 3/16in) Keyway Harmonic Balancer Adapter Hub (Hub Only)
