The MSD Flying Magnet Crank Trigger uses four magnets embedded in a billet aluminum trigger wheel that pass a stationary non-magnetic pickup to trigger the ignition. The flying magnet design produces an accurate trigger signal that cannot be falsely triggered by debris, stray bolts, or vibration the way a steel-stud trigger can, which stabilizes ignition timing for more consistent power. This kit fits Big Block Chevy V8 engines with a 7 inch balancer and includes a two-piece CNC-machined mounting bracket that mounts on either side of most engines, slotted for a wide range of timing adjustment, plus spacers for standard motor mounts or a 0.25 inch motor plate. It triggers MSD 6, 7, and 8 Series ignitions and all MSD timing accessories. The wheel and bracket carry a black anodized finish.
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).
Specifications:
- Type: flying magnet crank trigger kit
- Engine: Big Block Chevy V8 with 7 in balancer
- Trigger wheel: billet aluminum, four magnets
- Wheel diameter: 7 in
- Wheel thickness: 3/8 in
- Pickup: non-magnetic
- Finish: black anodized
- Compatible ignitions: MSD 6, 7, and 8 Series and MSD timing accessories
- Includes: two-piece mounting bracket and spacers
- Warranty: 1-year manufacturer limited
- Part number: 86243
FAQ
What engine does this crank trigger fit?
It fits Big Block Chevy V8 engines with a 7 inch balancer.
How is the flying magnet design different?
Magnets are embedded in the aluminum wheel and read by a non-magnetic pickup, so it cannot be falsely triggered by debris, bolts, or vibration like a steel-stud trigger.
Which ignitions does it trigger?
It triggers MSD 6, 7, and 8 Series ignitions and all MSD timing accessories.
What is included in the kit?
It includes the billet aluminum trigger wheel, a two-piece CNC-machined pickup bracket, and spacers for standard motor mounts or a 0.25 inch motor plate.
