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Ford Big Block Crank Trigger Kit
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Manufacturer: MSD Ignition
Part No.: 8644
Features:
- 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.
For
a long time, racers have known that one of the best things to do to an
engine to improve its 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 false 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 adjustment. 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, 8 and 10 Series
Ignitions and all MSD Timing Accessories.
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Except Cleveland Block, 7.25" Balancer
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