This MSD Flying Magnet Crank Trigger Kit delivers the precise, reliable timing signal a high-performance LS engine needs, letting you control timing electronically through a Holley EFI ECU or other standalone ignition controller. The 3-wire Hall-Effect sensor resists EMI/RFI noise and false signals better than distributor or VR magnetic-sensor setups, and has no wear parts to fail mechanically.
Specifications:
- Category: Ignition
- Color: Red
- Diameter: 6.562 in.
- Engine: GM Gen III/IV (LS)
- Make: Chevrolet
- Operating Voltage: 5-20V
- Sensor Type: Hall Effect
- Sub Category: Sensors
- Part Number: 8618
Designed for use with the ATI Harmonic Balancer 917776 or 917215; also compatible with Meziere water pump WP333 and LSX blocks. Some vehicles may require minor modification for special engine plates or pulley systems.
Compliance: This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).
FAQ
What type of sensor does this crank trigger kit use?
A 3-wire Hall-Effect sensor, which is more resistant to EMI/RFI interference and false signals than distributor or VR magnetic sensor setups.
What harmonic balancer does this kit require?
A direct bolt-on, degreed balancer such as the ATI 917776 or 917215.
Is this kit legal for street use?
No. It carries Emission Code 4 and is legal for Racing Use Only vehicles — competition vehicles that are not registered and never operated on the street.
What trigger wheel diameter does this kit use?
6.562 in.
Is this kit compatible with LSX blocks?
Yes, it is also compatible with LSX blocks and the Meziere WP333 water pump.
