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MSD®
8644 Crankshaft Trigger Kit

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$538.95
$606.95Save: $68.00(11%)
Manufacturer #8644
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Brand:
Notes:
Fits 429/460 Big Block Ford; Does Not Fit Cleveland Blocks
Warranty:
1-year MSD limited warranty
Quantity Sold:
Kit
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Additional Promotions:
Holley Brands IRS Tax Sale
Product Fit:
Direct Fit

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1972-1978 Ford Ranchero
GT
8 Cyl 6.6L
Crank Trigger Kit, 7.25 in. Balancer
1975 Ford Gran Torino
Elite
8 Cyl 5.8L
Crank Trigger Kit, 7.25 in. Balancer
1975 Ford Gran Torino
Elite
8 Cyl 6.6L
Crank Trigger Kit, 7.25 in. Balancer
1975 Ford Gran Torino
Elite
8 Cyl 7.5L
Crank Trigger Kit, 7.25 in. Balancer
1975 Ford Gran Torino
Sport
8 Cyl 7.5L
Crank Trigger Kit, 7.25 in. Balancer
Page 1 of 98 | Showing 1 - 5 of 487 results

Product Information

MSD CRANKSHAFT TRIGGER KIT

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.

  • 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.
  • Fits 429/460 Big Block Ford.
  • Does not fit Cleveland blocks.
  • Built to last

From ignitions to distributors, starters to coils, from spark plugs to plug wires, there’s an MSD product to help you get the most out of your engine.

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Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

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