Product Summary

External Ignition Box Required, HEI / Male Cap Type

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    Key Specs

    MFG. Part #8378
    BrandMSD
    Cap TypeHEI / Male
    Advance TypeNone
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    Need To Know

    Quick and Easy Returns

    Return Policy

    MSD 8378 Details

    Blue oval racers will be happy to see these Crank Trigger Distributors. The housing of these three distributors are standard-height Ford Distributors so they will work with cast intake manifolds. These distributors have a low-profile cap assembly to clear busy intake set-ups and are topped with MSDs new Rynite-molded Ford-style cap and wire retainer. The low design is accomplished because the only thing under the cap is a rotor! These distributors dont have an advance assembly or pick-up so they must be used with a Crank Trigger. Since these distributors are designed for racing applications, a ball bearing is pressed into the housing to guide the polished steel shaft. Each distributor is supplied with a bronze gear.

    Installation Instructions (PDF)

    Installation Instructions (PDF)

    Installation Instructions (PDF)

    • Standard height housings designed to work with cast intake manifolds
    • CNC machined billet aluminum housing and Dupont Rynite base
    • Polished steel shaft with a QPQ coating for friction reduction
    • Shaft is guided by a sealed ball bearing
    • Must be used with an MSD Crank Trigger and MSD Ignition Control
    • Supplied with a large diameter HEI style distributor cap and rotor
    • Supplied with bronze gear
    • No CARB Exemption Order Number
    • Must be used with an MSD Crank Trigger
    • Must be used with an MSD 6, 7, 8 or 10 Ignition Control
    • Fits 351W

    CARB Warning

    For race/ off road use only

    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. 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 8378 Specifications

    KEY SPECS
    MFG. Part #8378
    BrandMSD
    Cap TypeHEI / Male
    Advance TypeNone
    GENERAL
    External Ignition Box RequiredYes
    Cap Terminal StyleHEI / Male
    Trigger StyleCrank Trigger
    Hall EffectNo
    Sync SignalNo
    Trigger SensorsSingle
    Gear MaterialBronze
    Gear RotationStandard
    Ignition Box RequiredYes
    Mechanical Tach DriveNo
    Slip CollarNo
    Housing MaterialBillet Aluminum
    Housing FinishNatural
    Marine UseNo
    Sold in QuantityEach
    GTIN Code085132083787

    Questions & Answers

    Fitment

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

    • Ford 351W

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