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MSD Ignition 8644

Flying Magnet Crank Trigger Kit Big Block Ford (except Cleveland)

MSD Ignition 8644
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121-8644

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MSD Ignition 8644 Flying Magnet Crank Trigger Kit Big Block Ford (except Cleveland) $343.95
Flying Magnet Crank Trigger Kit
  • Big Block Ford (except Cleveland)
  • 7.25" Balancer

  • MSD Ignition 8644 Details

    Big Block Ford

    MSD's Flying Magnet Crank Trigger system stabilizes ignition timing.

    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
  • Kit features special brackets and mounting hardware for engine

    Note: Not legal for sale or use on pollution-controlled vehicles.

  • Specifications:

    Material
    Aluminum
    Hardware Included
    Yes
    Adjustable Mounting Bracket Included
    Yes
    Bracket Finish
    Red anodized
    Crank Trigger Wheel Included
    Yes
    Crankshaft Wheel Finish
    Red anodized
    Pickup Included
    Yes
    Quantity
    Sold as a kit
    Bracket Material
    Billet aluminum
    Manufacturer's Part Number:
    8644

    Flying Magnet Crank Trigger

    Stable ignition timing is a necessity in performance engines. In most cases, a distributor will do just fine, but when you start making big-time horsepower with extreme cylinder pressures, the timing is critical to both the performance and the life of the engine. The ignition must be triggered at a precise time in relation to the position of the piston the compression stroke. Think of all the mechanical stretching and flexing that takes place through the timing chain, gears and cam before the distributor pickup triggers the ignition. The crankshaft on the other hand, knows exactly where each piston is, plus it is the most stable component of the engine in relation to piston position. That's why a crank trigger for timing is so important in high horsepower engine applications.

    Most crank triggers use steel studs that stick out of the wheel to trigger a magnetic pickup. However, the stationary magnet can be triggered by track debris, vibration or even bolts. MSD uses a non-magnetic pickup which gets triggered by powerful magnets that are embedded in the trigger wheel. This ''flying magnet'' design cannot be false triggered. The only way to trigger the ignition is when a magnet passes the pickup.

    This non-magnet pickup is securely held in position by CNC machined aluminum brackets. These brackets feature a long adjustment slot providing a large range of accurate timing adjustments. Plus, many of the brackets can be used on either side of the balancer for easy installation. Most kits are supplied with several spacers for different accessories and pulley systems.

    MSD PREVENTS FALSE TRIGGERING

    The crank trigger timing wheel is also machined out of 6061-T6 aluminum and anodized MSD Red. Each ''rare earth'' magnet is pressed and then riveted into the wheel to handle the fierce rpm and vibration that high horsepower engines put out. By installing the magnets in the trigger wheel, MSD has done away with the chance of false triggering. As the engine is rotating, the magnets pass the Non-Magnetic Pickup and create a signal that triggers the Ignition. The magnets are the only thing that can trigger the ignition making it the most reliable and accurate way to trigger your ignition.

    All MSD Flying Magnet Crank Trigger Kits must be used with an MSD Ignition Control. Kits include mounting brackets, trigger wheel, non-magnetic pickup, centering ring and mounting hardware.

    NOTE: A locked-out distributor must be used with a crank trigger system.

    JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    Does MSD Ignition 8644 fit your vehicle?

    Narrow Results

    1975-1982 FORD E-250 ECONOLINE

    • Liter: 5.8
    • SubModel: CHATEAU
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1980 FORD E-250 ECONOLINE

    • Liter: 6.6
    • SubModel: CHATEAU
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1992-1996 FORD E-350 ECONOLINE

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1982 FORD E-250 ECONOLINE

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1976 FORD F-150

    • Liter: 6.4
    • SubModel: RANGER
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1984-1986 FORD E-150 ECONOLINE

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1986 FORD LTD

    • Liter: 5.8
    • SubModel: COUNTRY SQUIRE LX
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1993-1997 FORD F-350

    • Liter: 7.5
    • SubModel: XLT
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1993-1996 FORD F-250

    • Liter: 7.5
    • SubModel: XLT
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1977 MERCURY MONARCH

    • Liter: 5.8
    • SubModel: GHIA
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1980 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1982 FORD F-350

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1992-1993 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: CUSTOM HD
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1987 FORD E-150 ECONOLINE CLUB WAGON

    • EngineType: ALL
    • SubModel: XL

    1994-1996 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: XL HD
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977-1980 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1982-1983 FORD F-150

    • Liter: 5.8
    • SubModel: XLS
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1976 FORD F-350

    • Liter: 6.4
    • SubModel: CUSTOM
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1993 FORD F-250

    • CC: 5752
    • Liter: 5.8
    • SubModel: XLT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1982 FORD E-150 ECONOLINE

    • Liter: 5.8
    • SubModel: CHATEAU
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1976 FORD F-250

    • Liter: 6.4
    • SubModel: RANGER
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1975-1976 FORD F-100

    • Liter: 5.9
    • SubModel: RANGER
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1980-1982 FORD LTD

    • Liter: 5.8
    • SubModel: S
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1977-1979 FORD F-100

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1979 FORD LTD II

    • Liter: 5.8
    • SubModel: S
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1977-1978 FORD F-350

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1990 FORD BRONCO

    • EngineType: ALL
    • SubModel: EDDIE BAUER

    1975-1978 FORD E-350 ECONOLINE

    • Liter: 5.8
    • SubModel: NORTHLAND
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1995-1996 FORD BRONCO

    • Liter: 5.8
    • SubModel: XLT SPORT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1987-1992 FORD F-350

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1979-1981 MERCURY GRAND MARQUIS

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1984-1989 FORD BRONCO

    • Liter: 5.8
    • SubModel: XLT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1976 FORD ELITE

    • EngineType: ALL
    • SubModel: ALL

    1984-1989 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: XLT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1983-1991 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: XL
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1984-1986 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1984-1986 FORD E-350 ECONOLINE

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1976 FORD TORINO

    • EngineType: ALL
    • SubModel: ALL

    1997 FORD F SUPER DUTY

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977-1980 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: CHATEAU
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1976 FORD F-250

    • Liter: 5.9
    • SubModel: CUSTOM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1990 FORD BRONCO

    • EngineType: ALL
    • SubModel: XLT

    1984-1986 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1986 FORD LTD

    • Liter: 5.8
    • SubModel: CROWN VICTORIA LX
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1977-1981 FORD F-350

    • Liter: 6.6
    • SubModel: RANGER
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 FORD F-350

    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1983-1986 FORD E-150 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: XL
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1983 FORD F-250

    • Liter: 7.5
    • SubModel: XLS
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975 FORD F-100

    • CC: 6391
    • Liter: 6.4
    • SubModel: RANGER
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1976-1978 FORD F-250

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977 LINCOLN VERSAILLES

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1979 FORD LTD II

    • Liter: 5.8
    • SubModel: LANDAU
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1976 FORD F-100

    • Liter: 5.9
    • SubModel: RANGER XLT
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1982-1994 FORD F-350

    • Liter: 5.8
    • SubModel: XL
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1977-1979 FORD RANCHERO

    • Liter: 5.8
    • SubModel: SQUIRE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1979 FORD F-350

    • Liter: 7.5
    • SubModel: RANGER
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1979 FORD F-250

    • Liter: 7.5
    • SubModel: RANGER
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1986 FORD E-350 ECONOLINE

    • Liter: 7.5
    • SubModel: CARGO
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1976 FORD F-350

    • Liter: 6.4
    • SubModel: RANGER
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1975 MERCURY MONTEGO

    • EngineType: ALL
    • SubModel: VILLAGER

    1980 FORD E-100 ECONOLINE

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1978 FORD E-350 ECONOLINE

    • Liter: 7.5
    • SubModel: NORTHLAND
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977-1978 FORD F-150

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1976 FORD F-350

    • Liter: 6.4
    • SubModel: RANGER XLT
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1975-1983 FORD E-150 ECONOLINE

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1982-1983 FORD F-350

    • Liter: 5.8
    • SubModel: XLS
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1977-1979 FORD F-100

    • Liter: 5.8
    • SubModel: RANGER XLT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1986 MERCURY GRAND MARQUIS

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1977-1978 FORD F-100

    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1980-1982 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 6.6
    • SubModel: CHATEAU
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1977 FORD CUSTOM 500

    • EngineType: ALL
    • SubModel: ALL

    1975-1976 FORD F-100

    • Liter: 5.9
    • SubModel: NORTHLAND
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1988-1989 FORD F SUPER DUTY

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1980-1982 FORD E-350 ECONOLINE

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980-1982 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1976 FORD F-250

    • Liter: 5.9
    • SubModel: RANGER
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1976-1979 FORD RANCHERO

    • Liter: 5.8
    • SubModel: GT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1978 FORD LTD

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1980 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 6.6
    • SubModel: CHATEAU
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1987-1991 FORD E-350 ECONOLINE

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1979 FORD THUNDERBIRD

    • Liter: 5.8
    • SubModel: HERITAGE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1977-1982 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: CHATEAU
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1978 FORD BRONCO

    • EngineType: ALL
    • SubModel: NORTHLAND

    1978-1979 FORD F-100

    • Liter: 5.8
    • SubModel: RANGER LARIAT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1978-1981 FORD F-250

    • Liter: 6.6
    • SubModel: RANGER LARIAT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1997 FORD F-250 HD

    • Liter: 7.5
    • SubModel: XL
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1982 FORD E-350 ECONOLINE

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1978-1981 FORD F-250

    • Liter: 5.8
    • SubModel: RANGER LARIAT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1980-1986 FORD LTD

    • Liter: 5.8
    • SubModel: CROWN VICTORIA
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1983 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1978-1979 FORD BRONCO

    • EngineType: ALL
    • SubModel: RANGER XLT

    1995-1996 FORD F-350

    • Liter: 7.5
    • SubModel: SPECIAL
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1996 FORD E SUPER DUTY

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975-1978 FORD F-250

    • Liter: 7.5
    • SubModel: NORTHLAND
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1982 FORD F-150

    • Liter: 5.8
    • SubModel: XLT LARIAT
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1976 FORD F-100

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975 MERCURY MONTEGO

    • EngineType: ALL
    • SubModel: BROUGHAM

    1977 FORD RANCHERO

    • Liter: 7.5
    • SubModel: 500
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1987-1996 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1976 FORD RANCHERO

    • EngineType: ALL
    • SubModel: 500
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