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MSD Crank Trigger Kit - Flying Magnet - Hall-Effect - LS Gen III/IV - 7.25 In.

Small Block Chevrolet - Gen III/IV - Adjustable Timing Pointer - Red

Part # 8619
Estimated shipping date: 10/21/2021
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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 (ATI 917777 or 917211), you'll be able to adjust timing in the precise increments required for your LS Engine.


  • Most accurate way to trigger your electronic fuel injection (EFI)
  • Powerful magnets embedded in a 3/8” thick billet 6061-T6 aluminum trigger wheel
  • 3-wire Hall-Effect Sensor that is not easily susceptible to EMI/RFI Interference
  • Allows precise indexing by utilizing the 10 degree range on included timing pointer
  • Easy to install much like traditional MSD Crank Trigger Kits (use with ATI Balancer - 917777 or 917211)
  • Rigid mounting that will not flex and cause timing fluctuation

About MSD

From small block street cruisers to 10000 horsepower top fuel dragsters, MSD's ignition systems has been the industry leader for over 40 years. MSD continues to push the envelope with cutting-edge ignition technology as well as intake manifolds and EFI systems.

Brand MSD
Diameter7.25 in.
Emission Code4
Operating Voltage5-20 Volts
Product TypeCrank Trigger Kit
Sensor TypeHall Effect
WarrantyLimited 1 Year Warranty
Part Number8619

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

On some vehicles the MSD Crank Trigger Kit may require slight modifications to accommodate special engine plates, pulley systems, etc. This kit is designed to be used with the ATI Harmonic Balancer 917777 and 917211. This kit is also compatible with Meziere water pump WP333.
Limited 1 Year Warranty: See Details

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.