Description
MSD designed this 86403 Crank Trigger Ignition for Small Block Ford 289/302 and 351 Windsor engines. Four magnets secured in the aluminum trigger wheel pass by a stationary non-magnetic pick-up to trigger the ignition. This “flying magnet” design produces accurate trigger signals and the non-magnetic pick-up cannot be falsely triggered.
This system will trigger MSD 6, 7, and 8 Series Ignitions and all MSD Timing Accessories.
MSD 86403 Crank Trigger Ignition Features:
- Fits Small Block Ford 289/302 and 351 Windsor engines
- Color: Black
- Bracket Material: Billet Aluminum
- Wheel Width: 3/8”
- Sensor Dimensions: ¾” x 2.25”
- Trigger Type: 4X
- Diameter: 6.562 in.
- Pickup Included: Yes
- Crank Trigger Wheel Included: Yes
- Adjustable Mounting Bracket Included: Yes
- Hardware Included: Yes
- Quantity: Sold as a kit
Street cruisers as well as Top Fuel dragsters trust MSD’s ignition systems as 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.






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