Crank Trigger Kit, Ford Big Block - MSD Crank Trigger Wheel Kit - Flying Magnet - BBF - 7.25 in.

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Overview 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. Big Block Ford - 429-460ci - Use with MSD 6/7/8 Series Ignition - Red Features Powerful magnets are embedded in a billet aluminum trigger wheel. Fits 429/460 Big Block Ford. The non-magnetic pickup cannot be false triggered. Does not fit Cleveland blocks. Absolutely the most accurate way to trigger the ignition. Kits feature special brackets and mounting hardware for a variety of engines. Show more