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This Fluidampr harmonic balancer adapter hub is an internally balanced single‑keyway hub for big block Chevy (BBC) engines, sold as the hub only. It fits Fluidampr part numbers #800101 and #802050E and is intended for internally balanced 396–427ci Chevy applications. The adapter supports proper press fit tolerances to preserve vibration control after damper service.
Fluidampr BBC Internally Balanced Single Keyway Harmonic Balancer Adapter Hub (Hub Only)
