The MSD Flying Magnet Crank Trigger is available with a Hall-Effect sensor for the most accurate way to trigger EFI on a small block Chevy. Rigid aluminum mounting bracketry and hardware keep the trigger wheel from flexing under load, and powerful magnets embedded in the 3/8 in. thick aluminum wheel send a clean signal to the EFI on every firing.
Specifications:
- Category: Ignition
- Color: Red
- Diameter: 7 in.
- Make: Chevrolet
- Operating Voltage: 5-20V
- Sensor Dimensions: 3/4 in. x 2 in.
- Sensor Type: Hall Effect
- Wheel Width: 3/8 in.
- Sub Category: Sensors
- Part Number: 86101
Includes an adjustable timing pointer for precise indexing.
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 engine platform is this crank trigger kit for?
Small block Chevrolet.
What sensor type does it use?
A 3-wire Hall-Effect sensor that is less susceptible to noise interference than magnetic sensors.
What size is the trigger wheel?
7 in. diameter, 3/8 in. wide, made from billet aluminum.
Is this kit legal for street use?
No. It carries Emission Code 4 and is legal for Racing Use Only vehicles that are never registered or operated on the street.
Does it include a timing pointer?
Yes, an adjustable timing pointer is included for precise indexing.

