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Holley EFI Gen III Hemi Smart Coils 556-163 Ignition Coils, EFI, Hemi, Coils, Black, 32,000V, Rectangular, Connector/Pins, for HP, Dominator, 8-piece, Chrysler, Dodge, Set

SKU: HLY556-163

Ignition Coils

Holley EFI Gen III Hemi Smart Coils 556-163 Ignition Coils, EFI, Hemi, Coils, Black, 32,000V, Rectangular, Connector/Pins, for HP, Dominator, 8-piece, Chrysler, Dodge, Set

SKU: HLY556-163

Ignition Coils
A$1,591.06
LAST ONE! Est Ship 4-7 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

IMPORTANT NOTICE: Designed for use on Mopar Gen III Hemi engines with Holley EFI or Terminator X ECU's, as well as other EFI systems that can drive "smart" ignition coils. Direct bolt-on for factory Gen III Hemi valve covers. Will not work with factory wiring harness.

Holley EFI Smart Coils are a bolt-in ignition upgrade for your Gen III HEMI or Coyote engine. Here's the difference over a stock coil: they produce more spark energy while consuming less power without sacrificing voltage output. This means you get hotter spark at the plug to burn the maximum amount of fuel in each cylinder while using less power from your electrical system. The Smart Coils are available individually and in sets of 8.

* For Hemi combinations currently using Holley EFI or Terminator X, use Smart Coil Ignition Harnesses 558-312 and Coil Extension Harnesses 558-326 for a plug-and-play solution.

Features:

* Direct bolt-on to factory valve covers
* Same wiring pinout as other IGN-1A coils for easy plug-in upgrades (Will not work with factory wiring)
* More spark energy than any other smart coil on the market for maximum fuel burn during combustion sequence
* Low current draw means less demand on the electrical and charging system
* Built-in ignitor for compatibility with Holley EFI and many other aftermarket ECUs
* Maximum operating voltage of 18 V—for compatibility with both 12 V and 16 V electrical systems found in many performance/race applications

Part Type

Smart Coil Mopar Gen-3 Hemi 8pk - Black

Data: v4.2 - Upd: 2026-10-13 18:47:12

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
556-163
Product Attributes - Part Type
Ignition Coils
Product Attributes - Product Line
Holley EFI Gen III Hemi Smart Coils
Product Attributes - UPC
090127130032
Product Attributes - Coil Style
Coil pack
Product Attributes - Coil Color
Black
Product Attributes - Maximum Voltage
32,000 V
Product Attributes - Mounting Bracket Included
No
Product Attributes - Coil Wire Included
No
Product Attributes - Ballast Resistor Included
No
Product Attributes - Coil Shape
Rectangular
Product Attributes - Quantity
Sold as a set of 8.
Product Attributes - Notes
Designed for use on Mopar Gen III Hemi engines with Holley EFI or Terminator X ECU's, as well as other EFI systems that can drive "smart" ignition coils. Direct bolt-on for factory Gen III Hemi valve covers. Will not work with factory wiring harness.

Reference Information

Brand Name/s Holley
StreetFX SKU hly556-163
SFX Item ID 4783897
Supplier Item Code 4783897
Manufacturer SKU 556-163
Manufacturer UPC 90127130032
Alternative References HOL556-163, 000V, 8-piece

Compatibility

Application Data
  • UniversalYes
    Application NotesDesigned for use on Mopar Gen III Hemi engines with Holley EFI or Terminator X ECU's, as well as other EFI systems that can drive "smart" ignition coils. Direct bolt-on for factory Gen III Hemi valve covers. Will not work with factory wiring harness.

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