- Ignition & Electrical
- Wiring, Wiring Harnesses, Switches, Connectors, Breakers & Relays
- Holley GM Gen III/IV LS Engine Wiring Harnesses
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LS1/LS6
Holley 558-102
Holley Main Harness for GM LS1, LS6 Engines w/Holley HP or Dominator EFI (24X Crank Reluctor)
$563.95
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Holley 558-133
Holley Extended Length Main Harness for GM LS1, LS6 Engines w/Holley HP or Dominator EFI (24X Crank Reluctor)
$522.95
Estimated to ship direct from manufacturer in 24hrs
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LS2/LS3/LS7
Holley 558-103
Holley Main Harness for GM LS2, LS3, LS7 Engines w/Holley HP or Dominator EFI (58X Crank Reluctor)
$563.95
Ships Tomorrow
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Lowest Price Guarantee
Holley 558-134
Holley Extended Length Main Harness for GM LS2, LS3, LS7 Engines w/Holley HP or Dominator EFI (58X Crank Reluctor)
$522.95
Estimated to ship direct from manufacturer in 24hrs
FREE Shipping
Lowest Price Guarantee