SKU: 463324738

Ford Big Block Crank Trigger Kit - 8644

$292.48 $324.98
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Description

Ford Big Block Crank Trigger Kit - 8644Overview: 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,

Overview:

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 and 8 Series Ignitions and all MSD Timing Accessories.

Features:

    Application:

    Year Make Model Submodel Engine Size
    1975 - 1996 Ford E-250 Econoline 4/8 V
    1977 - 1996 Ford F-250 4/8 V
    1975 - 1976 Mercury Montego 4/8 V
    1975 - 1991 Ford E-250 Econoline Club Wagon 4.36/8 V
    1975 - 1996 Ford E-350 Econoline 4/8 V
    1977 - 1997 Ford F-350 4/8 V
    1975 - 1996 Ford E-150 Econoline 4/8 V
    1975 - 1991 Ford E-250 Econoline Club Wagon 4/8 V
    1977 - 1996 Ford E-350 Econoline Club Wagon 4.36/8 V
    1975 - 1976 Ford F-350 4.05/8 V
    1975 - 1977 Ford F-500 4.05/8 V
    1975 - 1986 Ford LTD 4/8 V
    1975 - 1977 Ford Ranchero 4.36/8 V
    1977 - 1996 Ford E-350 Econoline Club Wagon 4/8 V
    1975 - 1996 Ford F-150 4/8 V
    1975 - 1996 Ford E-150 Econoline Club Wagon 4/8 V
    1975 - 1996 Ford F-250 4.36/8 V
    1975 - 1979 Ford F-150 4.36/8 V
    1975 - 1978 Ford LTD 4.36/8 V
    1975 - 1976 Ford F-150 4.05/8 V
    1975 - 1997 Ford F-350 4.36/8 V
    1975 - 1976 Mercury Cougar 4.36/8 V
    1980 Lincoln Continental 4/8 V
    1972 - 1979 Ford Ranchero 4/8 V
    1975 - 1983 Ford E-100 Econoline 4/8 V
    1975 - 1979 Ford F-100 4/8 V
    1975 - 1976 Ford F-250 4.05/8 V
    1975 - 1996 Ford E-350 Econoline 4.36/8 V
    1975 - 1976 Ford Torino 4/8 V
    1978 - 1986 Mercury Grand Marquis 4/8 V
    1997 Ford F-250 HD 4.36/8 V
    1978 - 1996 Ford Bronco 4/8 V
    1975 - 1977 Ford Custom 500 4/8 V
    1975 - 1976 Lincoln Mark IV /
    1975 - 1979 Mercury Cougar 4/8 V
    1975 - 1977 Ford Granada 4/8 V
    1975 - 1979 Lincoln Continental /
    1988 - 1991 Ford LTD Crown Victoria 4/8 V
    1975 - 1983 Ford E-100 Econoline Club Wagon 4/8 V
    1972 - 1974 Ford Ranchero U/K/8 V
    1975 - 1976 Ford Gran Torino 4/8 V
    1988 - 1997 Ford F Super Duty 4.36/8 V
    1978 - 1981 Mercury Marquis 4/8 V
    1975 - 1977 Mercury Marquis /
    1975 - 1980 Ford E-250 Econoline 4.36/8 V
    1975 - 1977 Mercury Monarch 4/8 V
    1977 - 1979 Ford Thunderbird 4/8 V
    1975 - 1976 Ford Custom 500 4.36/8 V
    1975 - 1976 Ford Elite 4.36/8 V
    1996 Ford Econoline Super Duty 4.36/8 V
    1975 - 1976 Ford Torino 4.36/8 V
    1975 - 1977 Mercury Grand Marquis /
    1977 - 1979 Lincoln Mark V /
    1988 - 1997 Ford F53 /
    1975 - 1976 Ford Elite 4/8 V
    1977 Lincoln Versailles 4/8 V
    1977 - 1979 Ford LTD II 4/8 V
    1978 Mercury Marquis 4.36/8 V
    1975 - 1976 Mercury Montego 4.36/8 V
    1975 - 1976 Ford Thunderbird /
    1975 - 1976 Ford F-100 4.05/8 V
    1975 - 1976 Ford Gran Torino 4.36/8 V
    1980 Lincoln Mark VI 4/8 V
    1978 Ford E-100 Econoline 4.36/8 V
    1995 Ford Mustang 4/8 V
    1978 Mercury Grand Marquis 4.36/8 V
    1997 Ford F-250 HD 4/8 V
    1996 Ford Econoline Super Duty 4/8 V
    1979 Ford F-100 4.36/8 V

    Specs:

    Brand MSD
    Color Red
    Diameter 7.25""
    Emission Code 4
    Make Ford
    Product Type Crank Trigger Kit
    Sensor Dimensions 3/4"" x 2.25""
    Sensor Type Non Magnetic
    Trigger Type 4X
    Warning California Proposition 65
    Warranty Limited 1 Year Warranty
    Wheel Width 3/8""
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 463324738

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    4.4 ★★★★★
    Based on 1551 reviews
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    Me
    Lowell, US
    ★★★★★ 2
    Did not last
    Color: Orange
    Disapointing, thought toy would last longer. Lucy is a very small puppy. I recharged about five times, then toy would not recharge... it died.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 8, 2026
    M
    Verified Purchase
    Mary
    Omaha, US
    ★★★★★ 4
    Not good for heavy chewers.
    Color: Orange
    Granted, my dog is very big. 95 lbs, however the ball was advertised as good for large dogs. The first day of play, he chewed the outer covering off. The ball still works fine, so if it doesn’t matter if it keeps the outer covering in tack, it will be fine.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 31, 2026
    J
    Verified Purchase
    Jessica Williams
    Lake Worth, US
    ★★★★★ 5
    Boredom Buster
    Color: Green
    This ball has been a boredom buster lifesaver. On the first day my 15 week golden retriever puppy played with it for a good 2 hours straight. I was nervous he would immediately get bored with it but nope, he searches for it every day. It has helped with his puppy teething, he's more likely to play with this ball than come up and use my hand/arm/clothes to teethe on. The battery lasts a good amount of time and is quick to charge but I did wish it lasted a bit longer. Overall I'm very happy. We live in a top floor apartment but the noise doesn't seem to be too bad for the neighbors. It's good quality and seems durable. Edit: The velcro for the sleeve wears out within a couple uses. It keeps falling off. It was my puppies FAV thing about the toy because of the pull tag thing. So now it's ineffective for him. Not sure if there's a way to get a new sleeve or not.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 2, 2025
    J
    Verified Purchase
    Jill
    Cuba, US
    ★★★★★ 5
    One of the best dog toys I’ve bought off Amazon in a long time
    Color: Green
    My dog Rosie is a heavy tower so it is difficult to find balls she doesn’t destroy quickly. I came across this item on Amazon and it is honestly one of the best pet toys I’ve ever bought on Amazon. After a long day of work sometimes I come home and Rosie has a lot of energy. I turn this ball on fast mode and she has so much fun. I do worry about how much shaking in her mouth. I don’t wanna give her a headache, lol but there’s also a slow mode that you can press for the ball to slowly move around, but it’s a really good toy and I’m happy. I purchased it if you have a heavy tower, I wouldn’t worry about them breaking it because we’ve had it for a couple weeks now and she’s doing great.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 15, 2026
    J
    Verified Purchase
    Jason S.
    Dallas, US
    ★★★★★ 4
    Not indestructible, but dogs love it
    Color: Green
    My dog LOVES this toy. Unfortunately, she loves it so much she destroys it. I have now purchased FOUR of these, but if left unattended for 5 minutes, my American terrier breaks this apart. She loves it so much though, I keep buying replacements. This is a wonderful enrichment toy, but you must keep an eye on your toothy friend.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 29, 2025

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