Sale

Ignitions and Electrical Distributors, Magnetos and Crank Triggers

Holley

6.5IN 12-1X CRANK TRIG KIT SBF HALL EFF

$749.95 $675.95 Save $74.00

SKU: H00E 556-172

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 556-172

Upgrading to an MSD Flying Magnet Crank Trigger Kit will deliver the precise and reliable signal that a high performance engine requires. This kit gives you the ability to control timing electronically through a Holley EFI ECU (or other standalone engine management system / ignition controller). At the heart of the kit is the 3-wire Hall-Effect Sensor that is easier to set up, less susceptible to EMI/RFI interference/noise, and less likely to have false signals than other methods (Distributors and VR Magnetic Sensors). In addition, they are less prone to mechanical failure since there are no wear parts. With the included high quality timing pointer and the use of a direct bolt-on, degreed balancer (see below list for recommendations), you'll be able to adjust timing in the precise increments required for your engine.

Features:

  • Most accurate way to trigger your electronic fuel injection (EFI), can be installed as 12-1 or 12x
  • Powerful magnets embedded in a 3/8-inch thick billet 6061-T6 aluminum trigger wheel
  • 3-wire Hall-Effect Sensor that is not easily susceptible to EMI/RFI Interference
  • Engine specific kits include a direct bolt-on billet aluminum pick up bracket
  • Rigid mounting that will not flex and cause timing fluctuation
  • Easy to install much like traditional MSD Crank Trigger Kits
  • Included installation instructions cover mechanical setup and provide step-by-step Holley EFI Software Setup

For Small Block Ford

MIA's Description

Embedded magnets and the 3/8 in. thick billet 6061-T6 aluminum trigger wheel is the most accurate way to trigger electronic fuel injection. The 3-wire hall-effect sensor resists EMI/RFI interference, and the direct bolt-on billet aluminum pick-up bracket provides rigid mounting for stable timing. Detailed instructions for mechanical setup (12-1X or 12X) and Holley EFI software setup are included. This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for closed competition racing.

Fitment

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Specifications

BrandHolley
Part NumberH00E 556-172
Weight2.93 lb

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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