Holley EFI - 558-128
Holley EFI Engine Main Harness; For Use w/5.0 Small Block Ford Engines;
This harness is for fuel injected small block ford engines, such as 5.0L, or 5.8L Windsor powerplants. Plug and play ignition capability with Dual Sync and HyperSpark Distributors, ignition adapter 558-305 is required for applications with a TFI distributor. The 5.0L Ford main harness is pre-terminated with Ford PWM IAC connector, for the OEM PWM - idle air control motor commonly found on late 80's and early 90's engines. Compatible with Holley EFI Dominator, HP, and Terminator X and X Max ECU's.
- Designed For Use With Fuel Injected Small Block Ford Engines/Such As 5.0L Or 5.8L Windsor Powerplants
- Plug And Play Ignition Capability With Dual Sync And Hyperspark Distributors
- Compatible With Holley EFI Dominator/HP And Terminator X And X Max ECUS
- Comes Pre-Terminated With Ford PWM IAC Connector
- For Use With Oem Ford Fuel Injectors - Use Injector Harness 558-209
Brand: Holley EFI
Emission Code: 4
Harness Application: Ford
Harness Type: Main
Product Type: 5.0L Ford Main Harness
Sale Category: Air and Fuel Delivery
Warning: California Proposition 65
