MSD Chrysler Big Block Crank Trigger Kit - 7.25 in. Balancer Analog Speedo Duration 281 / 283

Duration 281 / 283

9" Ford rear axles are very popular in drag racing because of their light weight and the ability to change gears easily

Distributor

5 to 1 Ratio

MSD Chrysler Big Block Crank Trigger Kit - 7.25 in. Balancer Analog Speedo Duration 281 / 283The 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