LSX 10-Rib Harmonic Damper for 2006-2013 LS7 Corvette – 15% Overdrive #8503


SFI 18.1 Harmonic Damper for GM 2006-2013 LS7 Corvette w/Crank Bolt. Features 10-Rib drive & 15% Overdrive Pulley.

Note: 15% overdrive dampers will not fit with stock diameter water pump pulleys. Aftermarket pumps and/or custom smaller diameter pulleys made be needed for proper clearance to damper.

  • Diameter: 8.350″
  • Weight: N/A
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.

3 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: 8503 Category: Tags: , ,