SFI 18.1 Harmonic Damper for GM 2006-2013 LS7 Corvette w/Crank Bolt. Features 10 Rib drive & 10% Overdrive Pulley. Complete 10 Rib Conversion Kits also available, see options below.


  • Diameter: 8.00"
  • Weight: 9.8 lbs
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.

Innovators West - 10 Rib Harmonic Balancer 10% OD - C6 Corvette Z06 LS7




    Shelby Killer Performance was started in 2015 by David an avid performance car enthusiast. Shelby Killer Performance specializes in LSX and 5th gen LT performance parts and accessories. With a five star rating our ultimate passion is making the customer happy.

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