Holley - Injector Harness

Item #558-200
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Holley - Injector Harness (All Systems)

These Holley EFI injector wiring harnesses for a variety of applications. These harnesses include quality components and are available for a choice of injection styles to complete your fuel system.

  • 558-200/203:(V8) Universal "Y" style harness using standard Bosch style injector connectors
  • 558-201:"Y" Style harness for any V8 engine using "EV6" style of injector
  • 558-202:Fully terminated 4 cylinder harness using standard Bosch style injector connectors
  • 558-204/207/208:Terminated at injector connectors (Bosch style) Harness must be assembled and require crimping Metripak 150 connectors. Includes all connectors, pins, terminals, and loom needed
  • 558-206:Fully terminated harness when using two 4bbl Holley TBI Units
  • On LS based engines, the LSx harness should be used on LS2/LS7 engines. The V8 injector harness should be used on LS1/LS6 engines. It utilizes the Bosch style connector. Truck engines may have three different connectors. The EV6, Bosch and GM Multec 2. Currently we do not have a harness for the Multec 2.
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