2008-2009 Pontiac G8 8 Rib Conversion Kit with 10% Overdrive Damper Damper

2008-2009 Pontiac G8 8 Rib Conversion Kit with 10% Overdrive Damper #1201

$1,200.00 – $1,225.00

8 Rib Drive Conversion Kit with a 10% Overdrive Damper for 2008-2009 Pontiac G8. Includes SFI 18.1 Harmonic Damper.

  • 6.0 L L76 V8 (361 hp)
  • 6.2 L LS3 V8 (415 hp)
  • 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.


  • NOTE: The Underdrive Alternator option is a larger diameter alternator pulley (2.800″) that is designed to slow the alternator down when ran on high rpm race engines (7500 rpm or higher). The underdrive alternator pulley will slow the alternator down and may cause charging issues at idle for street driven vehicles.
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    Conversion kit includes:

    Qty PN Description
    1 843 8-Rib Drive – 10% Overdrive Damper
    1 1049 Gen 2 LS2 GTO Billet Aluminum Power Steering Pulley
    1 970 8 Rib Drive Billet Aluminum Alternator Pulley
    1 980 GM 8-Rib Corvette Tensioner Pulley
    1 1010 GM 8-Rib Smooth Idler Pulley – Offset

    Any additional aftermarket pulleys must be sourced from the manufacturer of those pulleys. Includes SFI 18.1 Harmonic Damper.

    GM LSX Motors [PDF Format].
    GM LSX 8-Rib & 10-Rib Drive Conversion Kit Install Instructions [PDF Format].
    Damper Hub Honing Instructions [PDF Format].