Small Block Chevy 7″ Externally Balanced Harmonic Damper #103


The #103 damper features the Chevy Bolt Pattern and works with OEM Pulleys and Hardware. This 7″ diameter damper best used with stock or modified engines making up to approximately 1000 hp.

  • Outer Diameter: 7″
  • Weight: 9.5 lbs
  • For Externally Balanced 400 ci & Larger Small Block Chevy
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.

Double 3/16" Keyway Add On

Add an additional 3/16 Keyway to your Damper. Required the crankshaft to be machined for a second keyway 180* out from the original keyway. *Requires damper purchase. This is a labor option for new damper purchase only.

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