GM LSX Damper Installation Instructions [PDF Format].
Damper Hub Honing Instructions [PDF Format].
LSX 10-Rib Harmonic Damper for Corvette, Pontiac G8 and CTS-V – 15% Overdrive #8403
$670.00 – $695.00
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.
NOTE: Innovators West specific pin kit required when used with a stock non-keyed crankshaft.
- Diameter: 8.350″
- Weight: CALL
- 15% Overdrive
- Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.
- NOTE: The Super Duty Blower Hub option is a thicker hub that provides greater resistance to hub cracking under high power supercharged applications (750 rwhp and greater). This option includes a new custom made timing cover seal to adapt the oversized hub to a stock timing cover.