LS Truck & Trailblazer SS, 8 Rib – 10% Overdrive Harmonic Damper #863
$615.00 – $640.00
SFI 18.1 Harmonic Damper for GM 2009-2015 LSX Gen 5 Camaro, GM 1999-2013 Trucks & 06-08 Trailblazer SS – w/ Crank Bolt. Features 8-Rib, 10% Overdrive Pulley. Complete 8 Rib Conversion Kits also available, see options below.
NOTE: Although this damper is designed with 8 belt grooves, it may be used with the stock 6-rib accessory drive with no issues.
- 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.