6.7" Big Block Chevy Internal Balance Harmonic Balancer 

6.7" Big Block Chevy Internal Balance

All steel dampers have an alloy steel inner hub and an inertia ring machined from cold-drawn carbon steel tubing In almost all instances, this assembly weighs less than OEM damper All steel dampers are ideal for performance applications and racing classes In order to provide the proper counterweight mass, dampers for all externally balanced engines must be all steel construction Through careful design and computer controlled machining, externally balanced dampers are also the lightest available for these applications.