LSX 8-Rib Harmonic Damper for Corvette, Pontiac G8 and CTS-V - 10% Overdrive

SFI 18.1 Harmonic Damper for LS1, LS2, LS3, LS6 Corvette, Pontiac G8 & Cadillac CTS-V w/Crank Bolt. Features 8 Rib drive & 10% Overdrive Pulley. Complete Corvette and CTSV Conversion Kits also available, see options below.

This damper comes standard with 3/16" Keyway for use with aftermarket crankshafts. NOTE: Although this damper is designed with 8 belt grooves, it may be used with the stock 6-rib accessory drive with no issues.

NOTE: Innovators West specific pin kit required when used with a stock non-keyed crankshaft.

• Diameter: 8.125"


• Weight: 10.2 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.


• 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.