LS9 2009 Corvette 11-Rib – 10% Overdrive #870

$615.00

SFI 18.1 Harmonic Damper for GM 2009 ZR1 (LS9) Corvette – w/ Crank Bolt. 11 Rib & 10% Overdrive Pulley.

  • Diameter: 8.150″
  • Weight: 11.4 lbs
  • Comes with Single 3/16″ Keyway
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.

2 in stock

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.

SKU: 870 Category: Tags: , , ,
GM LSX Damper Installation Instructions [PDF Format].
Damper Hub Honing Instructions [PDF Format].