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Holley EFI Crank Trigger Kits 556-176 Triggers, EFI, 12-1X LS, Hall Effect, 6.56 in. Diameter, Aluminum, Silver, Adjustable Bracket, 3-wire Pickup, Gen III, IV, SBC, Kit

SKU: HLY556-176

Crank Trigger Kits

Holley EFI Crank Trigger Kits 556-176 Triggers, EFI, 12-1X LS, Hall Effect, 6.56 in. Diameter, Aluminum, Silver, Adjustable Bracket, 3-wire Pickup, Gen III, IV, SBC, Kit

SKU: HLY556-176

Crank Trigger Kits
A$1,736.76
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Holley's EFI crank trigger kits provide accurate crank speed and position signals to Holley EFI systems in the most demanding, high-horsepower, racing applications. The crank position is measured every 10 degrees instead of every 45 degrees, like standard 4-magnet crank trigger systems. Holley's EFI crank trigger kits feature 1/4 in. thick, billet steel, 36-1 or 60-2 tooth-crank trigger wheels with black zinc oxide finish for superior corrosion resistance and striking good looks

Other notable features include:

* Crank wheels center off of balancer hubs, eliminating the need for centering rings
* All billet, 6061-T6 aluminum sensor mounting brackets with "bright-dipped" black anodized finish and laser-etched Holley EFI logo
* Custom 3-wire, ferrous-target, Hall-effect sensors with M12 x 1.0mm threads for finer gap adjustment
* Grade 8 and mil-spec mounting hardware

Part Type

Crank Trigger Kits

Data: v4.2 - Upd: 2026-10-13 18:47:59

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
556-176
Product Attributes - Part Type
Crank Trigger Kits
Product Attributes - Product Line
Holley EFI Crank Trigger Kits
Product Attributes - UPC
090127470718
Product Attributes - Pickup Included
Yes
Product Attributes - Adjustable Mounting Bracket Included
Yes
Product Attributes - Bracket Material
Aluminum
Product Attributes - Bracket Color
Black
Product Attributes - Crank Trigger Wheel Included
Yes
Product Attributes - Crankshaft Wheel Material
Aluminum
Product Attributes - Crankshaft Wheel Color
Natural
Product Attributes - Hardware Included
Yes
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Holley
StreetFX SKU hly556-176
SFX Item ID 4782800
Supplier Item Code 4782800
Manufacturer SKU 556-176
Manufacturer UPC 90127470718
Alternative References HOL556-176, 12-1X, 3-wire

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine TypeV8
    Harmonic Damper Diameter (in.)6.562
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1999
    Ending Year2014
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine TypeV8
    Harmonic Damper Diameter (in.)6.562
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1999
    Ending Year2017
    Engine Size4.8L/294
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine TypeV8
    Harmonic Damper Diameter (in.)6.562
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1999
    Ending Year2019
    Engine Size6.0L/364
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine TypeV8
    Harmonic Damper Diameter (in.)6.562
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2006
    Ending Year2015
    Engine Size7.0L/427
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine TypeV8
    Harmonic Damper Diameter (in.)6.562
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2008
    Ending Year2017
    Engine Size6.2L/376
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine TypeV8
    Harmonic Damper Diameter (in.)6.562

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