Fluidampr 100010 Harmonic Balancer Adapter Hub BBC Internal Balance Dual Key

The Fluidampr 100010 is a precision-engineered harmonic balancer adapter hub designed specifically for big block Chevy 396-427 cubic inch engines with internal balance configurations. This critical component serves as the interface between your crankshaft and Fluidampr harmonic balancer, ensuring optimal vibration control and engine longevity.

Key Features:

• Designed for big block Chevy 396-427ci engines with internal balance
• Dual keyway design with 3/16" and 3/16" key slots for precise alignment
• Maintains recommended press fit specification of 0.0005" - 0.0015"
• Compatible with Fluidampr dampers #800101 and #80255E
• Precision-machined for exact fitment and optimal vibration damping performance

This adapter hub is essential when replacing or servicing your Fluidampr harmonic balancer, as repeated removal and installation can affect the press fit tolerances. The dual keyway design ensures proper crankshaft timing alignment while maintaining the structural integrity needed for effective harmonic damping. Fluidampr's strict press fit tolerances ensure maximum vibration control and protection for your high-performance big block Chevy engine.