Product Summary

External Ignition Box Required, HEI / Male Cap Type

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    Key Specs

    MFG. Part #84771
    BrandMSD
    Cap TypeHEI / Male
    Advance TypeMechanical and Vacuum
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    Need To Know

    Quick and Easy Returns

    Return Policy

    MSD 84771 Details

    The Street models share the same features as the small diameter models shown above, plus feature a vacuum advance. This canister provides improved economy and an accurate mechanical advance lets you dial-in an advance curve to match your driving needs. A magnetic pick-up produces accurate trigger signals that remain stable throughout the entire rpm range of your engine and is completely maintenance-free.

    The Street Pro-Billet Distributors are the perfect choice for powerful engines that see plenty of street time.

    • Includes Steel Gear, compatible with hydraulic roller cams
    • Must be used with an MSD Ignition Control
    • Supplied with small diameter cap with HEI style terminals and race rotor (will accept 8441 Cap-A-Dapt)
    • Nylon pads ensure smooth operation of the advance weights
    • Advance weight pins are staked and tig welded to the plate
    • Mechanical advance assembly can be locked out for crank trigger systems
    • Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
    • Polished steel shaft is QPQ coated and guided by a sealed ball bearing
    • Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
    • CNC machined billet aluminum housing and billet aluminum base
    • Vacuum advance canister for improved economy (can be locked out)
    • Easy-to-adjust mechanical advance with supplied springs and stop bushings
    • Billet housing is 5/8” smaller in diameter than stock Ford distributors
    • CARB E.O. Approved

    Charts

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    MSD 84771 Specifications

    KEY SPECS
    MFG. Part #84771
    BrandMSD
    Cap TypeHEI / Male
    Advance TypeMechanical and Vacuum
    GENERAL
    External Ignition Box RequiredYes
    Cap Terminal StyleHEI / Male
    Trigger StyleMagnetic
    Hall EffectNo
    Sync SignalNo
    Trigger SensorsSingle
    Gear MaterialSteel
    Gear RotationStandard
    Ignition Box RequiredYes
    Mechanical Tach DriveNo
    Slip CollarNo
    Housing MaterialBillet Aluminum
    Housing FinishNatural
    Marine UseNo
    Sold in QuantityEach
    GTIN Code085132847716

    Questions & Answers

    Fitment

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    • 460 Ford 385 Series Big Block V8

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    • 351C Ford 335 Series Cleveland V8

    • 351C Ford 335 Series Cleveland V8

    • 351C Ford 335 Series Cleveland V8

    • 460 Ford 385 Series Big Block V8

    • 351C Ford 335 Series Cleveland V8

    • 351C Ford 335 Series Cleveland V8

    • 460 Ford 385 Series Big Block V8

    • 460 Ford 385 Series Big Block V8

    • 351C Ford 335 Series Cleveland V8

    • 351C Ford 335 Series Cleveland V8

    • 460 Ford 385 Series Big Block V8

    • 460 Ford 385 Series Big Block V8

    • 351C Ford 335 Series Cleveland V8

    • 351C Ford 335 Series Cleveland V8

    • 351C Ford 335 Series Cleveland V8

    • 460 Ford 385 Series Big Block V8

    • 351C Ford 335 Series Cleveland V8

    • 351C Ford 335 Series Cleveland V8

    • 460 Ford 385 Series Big Block V8

    • 460 Ford 385 Series Big Block V8

    • 460 Ford 385 Series Big Block V8

    • 351C Ford 335 Series Cleveland V8

    • 351C Ford 335 Series Cleveland V8

    • 460 Ford 385 Series Big Block V8

    • 460 Ford 385 Series Big Block V8

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    • 460 Ford 385 Series Big Block V8

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