Fluidampr BBC Ext Balanced Dual (1/4in & 1/4in) Keyway Harmonic Balancer Adapter Hub (Hub Only)

This is the Fluidampr harmonic balancer adapter hub, specifically designed for BBC (Big Block Chevy) engines that are externally balanced and feature dual keyways, each measuring 1/4 inch. This hub is intended to be used with specific Fluidampr damper part numbers, namely #800121 and #80253E, ensuring a proper fit and function for your engine's vibration control system.

Proper installation is key with these hubs. Fluidampr recommends maintaining a press fit between 0.0005" and 0.0015" to ensure the damper works effectively and to prevent issues down the road. By using this adapter hub, you avoid the repeated removal and installation of the damper itself, which can degrade its vibration-dampening capabilities over time. This means you're preserving the intended performance of your Fluidampr damper for longer.