Firing Order

2.8, 3.1 & 3.4 Firing Order

3100 & 3400 Firing Order

3800 Firing Order

Spark Plugs

2.8 V6 & 3.1 V6

  • ACDelco Copper Part # R44LTSM
  • Autolite Copper Part # 5245
  • Plug Gap 0.45

3.1 Turbo Vin V

  • ACDelco Copper Part # R42LTS
  • Autolite Copper Part # 103
  • Plug Gap 0.45

3.4 DOHC V6

  • ACDelco Iridium Part # 41-993
  • Autolite XP Iridium Part # XP5243
  • Autolite Copper Part # 5243
  • Plug Gap 0.45

3100 & 3400 V6

  • ACDelco Double Plat Part # 41-940
  • Autolite Copper Part # 606
  • Plug Gap 0.60

3.6 DOHC V6

  • ACDelco Iridium Part # 41-109
  • Autolite XP Iridium Part # XP5263
  • Autolite Platinum Part # AP5263
  • Plug Gap 0.45

3800 N/A

  • ACDelco Double Plat Part # 41-902
  • Autolite Platinum Part # AP606
  • Autolite Copper Part # 606
  • Plug Gap 0.60

3800 SC

  • ACDelco Double Plat Part # 41-902
  • Autolite Platinum Part # AP606
  • Autolite Copper Part # 606
  • COLDER Autolite Copper Part # 104 & 103 (Requires Tune)
  • Plug Gap 0.60

Wire Sets

2.8 & 3.1 V6

  • Delphi / Wireset Part # XS10206
  • ACDelco / Wireset Part # 9706R
  • Duralast Gold / Wireset Part # D801163

2.8 & 3.4 DOHC V6

  • Duralast Gold / Wireset Part # 4877

3100 & 3400 V6

  • Delphi / Wireset Part # XS10226
  • NGK / Wireset Part # 51107
  • Duralast Gold / Wireset Part # D801096

3.6 DOHC V6

  • NGK / Boots Part # 58984
  • Duralast Gold / Boots Part # 90098

3800 V6

  • AcDelco / Wireset Part # 9746BB
  • NGK / Wireset Part # 51031
  • Duralast Gold / Wireset Part # D801110

Coil Packs

Std Emotec Coil Packs:

Gray Bottom

Low voltage side (Bottom)

  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.8
  • 0.9
  • 0.9
  • 0.9

High voltage side (Top)

  • 5800
  • 5680
  • 5750
  • 5800
  • 5800
  • 5700
  • 5810
  • 5800
  • 5700

L67 Coil Packs:

Blue Bottom

Low voltage side (Bottom)

  • 0.8
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.9
  • 0.8
  • 0.9
  • 0.9

High voltage side (Top)

  • 5640
  • 5730
  • 5750
  • 5800
  • 5800
  • 5750
  • 5800
  • 5800
  • 5750

MSD Coil Packs:

Gray Bottom

Low voltage side (Bottom)

  • 0.8
  • 0.8
  • 0.8

High voltage side (Top)

  • 5660
  • 5640
  • 5790