Holley EFI

Ford V8 Injector Harness for HP EFI & Dominator EFIBrandHolley EFIEmission Code3Harness ApplicationFordHarness TypeInjectorProduct TypeFord EV1 Style Injector HarnessPart Number558-209..

An Injector Harness is required and Holley offers two. The harness with USCAR/Stock injector connectors will cover most applications that are using the factory injectors. The other harness is for the Bosch and Holley (or Jetronic/Minitimer) injector connector that is commonly used in aftermarket applications for larger injectors. View the image gallery to see images of both types of injectors.Feat..

An Injector Harness is required and Holley offers two. The harness with USCAR/Stock injector connectors will cover most applications that are using the factory injectors. The other harness is for the Bosch and Holley (or Jetronic/Minitimer) injector connector that is commonly used in aftermarket applications for larger injectors. View the image gallery to see images of both types of injectors.Feat..

Ford V8 Injector Harness for Ford USCAR / EV6 style Fuel Injectors (Evenly Spaced)BrandHolley EFIEmission Code3Harness ApplicationFordHarness TypeInjectorProduct TypeFord EV6 Style Injector HarnessPart Number558-212..

Ford V8 Injector Harness for Jetronic "Bosch" style Fuel Injectors (Evenly Spaced)BrandHolley EFIEmission Code3Harness ApplicationFordHarness TypeInjectorProduct TypeFord EV1 Style Injector HarnessPart Number558-213..

Introducing the latest addition to the Holley EFI Product Lineup! Our EV6 unterminated injector harness is perfect for anyone wanting to add EV6 injectors to their engine bay. This harness kit comes with everything you need to build a custom cut to fit EV6 injector harness for an 8 cylinder engine. Don't forget, if you need a quality metripack crimping tool to complete the job, Holley EFI has you..

This is only used on applications using a CD Box, such as an MSD 6AL, while not using timing control.BrandHolley EFIEmission Code3Harness TypeIgnitionIgnition TypeCD Ignition (No Timing Control)Product TypeIgnition HarnessesPart Number558-302..

Shielded Unterminated Magnetic Pick-Up harness for Holley EFI systems BrandHolley EFIEmission Code3Harness ApplicationUniversalHarness TypeIgnitionProduct TypeIgnition HarnessesPart Number558-303..

HEI Adapter HarnessBrandHolley EFIEmission Code3Harness ApplicationGMHarness TypeIgnitionProduct TypeIgnition HarnessesPart Number558-304..

Ford TFI Ignition Adapter HarnessBrandHolley EFIEmission Code3Harness ApplicationFordHarness TypeIgnitionProduct TypeIgnition HarnessesPart Number558-305..

Universal Unterminated Ignition Harness for HP EFI & Dominator EFIBrandHolley EFIEmission Code3Harness ApplicationUniversalHarness TypeIgnitionProduct TypeUniversal Unterminated Ignition HarnessPart Number558-306..

Universal Coil On/Near Plug Harness – Use to connect Holley PN 558-312 or factory GM LSx coil harnesses to Holley HP or Dominator ECU'sFeatures:For use with Holley HP or Dominator ECUsUniversalConnects 558-312 or factory GM LSx coil harnessesBrandHolley EFIEmission Code3Harness ApplicationUniversalHarness TypeIgnitionProduct TypeDistrutorless Ignition - DIS - smart coilPart Number558-307..

This Harness is required with HP or Dominator ECUs. Includes, 13' long, 10 AWG main power harness, Qty. (2) 3/8" ring terminals and shrink tube (not pictured) . The harness is fuse protected and covered in braided split loom for additional abrasion protection . BrandHolley EFIEmission Code3Fuse40 AMP maxHarness ApplicationUniversalHarness TypeMain Battery PowerProduct TypePower HarnessWire Dia..

HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart Coils. They plug into Holley LSx plug and play main harnesses if one wants to replace factory LSx coils with Holley HP Smart Coils. If using a non-LSx main harness, purchase PN 558-307 for connectors, w..

The Holley EFI Ignition Adapter Harness for FAST™ Dual Sync Distributors allows easy connectivity of the Holley EFI wiring harness to the FAST™ Dual Sync Distributors.Features:Allows customer to run a "timed sequential" fuel strategyBrandHolley EFIEmission Code3Harness ApplicationUniversalHarness TypeIgnitionProduct TypeDual Sync DistributorPart Number558-313..

Coil harness for 99-04 2 Valve Ford Modular (4.6 & 5.4L) Engines. BrandHolley EFIEmission Code4Harness ApplicationFordHarness TypeIgnitionProduct TypeFord Modular Coil HarnessPart Number558-314..

Coil harness for 99-04 4 Valve Ford Modular (4.6 & 5.4L) Engines. BrandHolley EFIEmission Code4Harness ApplicationFordHarness TypeIgnitionProduct TypeFord Modular Coil HarnessPart Number558-315..

Coil Harness for 2011 to 2015 Ford Coyote (5.0L) EnginesBrandHolley EFIEmission Code4Harness ApplicationFordHarness TypeIgnitionProduct TypeFord Modular Coil HarnessPart Number558-317..

"Big Wire" Sub Harness- pre wired with 12ga power and grounds, for optimal performance! Features:“Big Wire” Sub Harness- Pre wired with 12ga Power and Grounds, for optimal performance!BrandHolley EFIEmission Code4Harness TypeIgnitionProduct TypeIgnition HarnessesPart Number558-318..

Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is your weekend road race warrior powered by a coyote junkyard engine with locked cams? Unlock the full potential of your high revving power plant with the Holley EFI Plug and Play Coyote Ti-VCT Control Module. Features:Plug and Play with Dominator or HP ECU ..