Innovators West

LSX 10-Rib Harmonic Damper for Corvette, Pontiac G8 and CTS-V - 15% Overdrive

  • Sale
  • $ 575

SFI 18.1 Harmonic Damper for LS1, LS2, LS3, LS6 Corvette, Pontiac G8 & Cadillac CTS-V w/Crank Bolt. Features 10-Rib drive & 15% Overdrive Pulley.

This damper comes standard with 3/16" Keyway for use with aftermarket crankshafts.

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.


  • Dual Keyway Option - Add $20.00
    Add dual keyways for Supercharged or Extreme Duty Applications. Requires double keyed crankshaft snout.
  • LSX Blower Hub Option - Add $25.00
    The super duty hub has increased material for supercharged applications.This increased material helps to protect the hub from cracking in high load applications. The super duty hub is recommended for supercharged applications making over 750 rwhp. Includes matching timing cover oil seal.


  • Diameter: 8.350"
  • Weight: CALL
  • 15% Overdrive
  • 8-Rib
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.