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Innovators West 103 7" EXT Balance Dampener

Harmonic Balancers

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Innovators West 103 7" EXT Balance Dampener

innovators west # 103 SBC 7 Inch Harmonic Balancer
Externally Balanced

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. For engines over 1000 hp please view damper #107 and for Supercharged engines with the BBC crank snout please view damper #107B or #109.


  • Get rid of your separate Crank Trigger Wheel by integrating it into the Damper itself! - Saves on average about 9 Ounces over the MSD Crank Trigger Wheel. Includes billet aluminum matching sensor bracket and mounting hardware
  • Add dual keyways for Supercharged or Extreme Duty Applications. Requires double keyed crankshaft snout.
  • The blower hub has increased material for supercharged applications.  Includes matching timing cover oil seal.


  • 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.

Part #: 975

Price: $525.99
Sale Price: $470.95
Crank Trigger Option:
Dual Keyways?:
Blower Hub?:

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