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    8633 Crank Trigger - SB MoPar  MSD Trigger Wheel, Flying Magnet,

    Thumbnail Filmstrip of 8633 Crank Trigger - SB MoPar MSD Trigger Wheel, Flying Magnet, Images

      Purchase 8633 Crank Trigger - SB MoPar MSD Trigger Wheel, Flying Magnet,

      SKU: MSD-8633
      8633 MSD Crank Trigger - MSD Trigger Wheel, Flying Magnet, Small Block MoPar



                          MSD Crank Trigger Wheel Kit - Flying Magnet - Chrysler Small Block - 7.25 in.

      273-360ci - Use with MSD 6/7/8 Series Ignition - Red

      Part # 8633 Be the first to write a review


      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.

        See Emissions Details
      For a long time, racers have known that one of the best things to do to an engine to improve performance is to stabilize the ignition timing. The MSD Flying Magnet Crank Trigger system does exactly that by using four magnets embedded in an aluminum wheel. Although similar in appearance to other crank triggers, the MSD Flying Magnet design works on a different principle. Most crank triggers have a wheel, with steel studs sticking out, bolted to the harmonic balancer. As the crankshaft turns, the studs pass by a stationary magnetic pick-up, triggering the ignition. This pick-up can be triggered by other bolts, debris, or even vibrations which will cause a loss of power or engine damage. The MSD Flying Magnet Crank Trigger uses four magnets secured in the aluminum trigger wheel that 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. Each Flying Magnet Crank Trigger includes a two-piece mounting bracket for the non-magnetic pick-up that in most cases will work on either the passenger side or driver's side of the engine (the SB Chrysler and SB Ford brackets mount on only one side). The CNC-machined aluminum bracket securely holds the pick-up in place and is slotted to provide a wide range of timing adjustments. Spacers are included so you can mount the bracket on engines with standard motor mounts or engines with a .25" motor plate. These systems will trigger MSD 6, 7, and 8 Series Ignitions and all MSD Timing Accessories.


      • Absolutely the most accurate way to trigger the ignition.
      • The non-magnetic pickup cannot be false triggered.
      • Powerful magnets are embedded in a billet aluminum trigger wheel.
      • Kits feature special brackets and mounting hardware for a variety of engines.

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