Holley 558-103: 558-103 Main Harness for GM LS2, LS3, LS7 Engines w/Holley HP or Dominator EFI (58X Crank Reluctor)
LS2/LS3/LS7
Main Engine Harness Fits 2006-2017 GM LS2, LS3, LS7 Engines Also Fits LS Variants L76, L92, L98 For Holley HP or Dominator EFI 58X Crankshaft Reluctor 4X Camshaft Sensor Length 72 in. Plug-and-Play