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Product Summary

351W, HEI / Male Cap Type, Magnetic Trigger Style

    Key Specs

    MFG. Part #83541
    BrandMSD
    Cap TypeHEI / Male

    Need To Know

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    Details

    MSD’s Ready-to-Run Ford Distributors are the perfect upgrade for bulky DuraSpark systems or ancient breaker point models. These distributors come complete and ready-to-run. All you need to do is drop it in the engine, connect three wires and fire the engine. Each distributor features an ignition module that produces a powerful inductive spark to improve combustion of the fuel mixture resulting in quick starts, smooth idle and increased performance. The billet aluminum housings of these distributors are 5/8” smaller in diameter to accommodate induction setups and tight engine compartments. A maintenance-free magnetic pickup is responsible for triggering the high voltage sparks while a sealed ball bearing guides an oversized shaft. Beneath the bolt down cap and MSD race rotor you’ll find MSD’s accurate mechanical advance assembly. Different advance springs and stop bushings are supplied so you can easily tune a curve to match your needs. Plus, there is a vacuum advance canister to increase economy on long drives. For protection, there is also an easy-to-set rev limiter!

    Features

    • Equipped with Steel Gear
    • CARB E.O. Approved
    • Does not require 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
    • Housing is 5/8” smaller in diameter than stock Ford distributors
    • 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
    • Powerful built-in module produces a 7.5 amp single spark through high rpm
    •  Simple and clean installation with only three wires to connect
    • Includes built-in Rev Limiter!
    • Note: Will not fit XD and later Australian 351 Cleveland engines.

    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.

    Specifications

    KEY SPECS
    MFG. Part #83541
    BrandMSD
    Cap TypeHEI / Male
    GENERAL
    External Ignition Box RequiredNo
    Cap Terminal StyleHEI / Male
    Advance TypeMechanical and Vacuum
    Trigger StyleMagnetic
    Hall EffectNo
    Sync SignalNo
    Trigger SensorsSingle
    Gear MaterialSteel
    Gear RotationStandard
    Ignition Box RequiredNo
    Mechanical Tach DriveNo
    Slip CollarNo
    Housing MaterialBillet Aluminum
    Housing FinishNatural
    Marine UseNo
    Sold in QuantityEach
    GTIN Code085132835416