Product Summary

Universal Fit, Chassis Header Tube Type, Raw, Steel

    Key Specs

    MFG. Part #9300103
    BrandSpeedway Motors
    Header Tube TypeChassis
    Material TypeSteel

    Need To Know

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    These street rod headers are like tight-fit headers, but longer. Extra mid-to-upper RPM power. 1-5/8" primary tubes and 2-1/2" collectors. With reducers, gaskets and bolts.

    Check motor mount's position before ordering.

    Header Specifications Chart (GIF)



    • Will not fit angle-plug heads due to spark plug clearance problems.

    Guides & Documents

    CARB Warning

    For use on pre-1966 vehicles only

    Emissions warning: this part only legal for sale or use in California 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.


    MFG. Part #9300103
    BrandSpeedway Motors
    Header Tube TypeChassis
    Material TypeSteel
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    Exhaust Port ShapeRound
    Overall Height15.5"
    Collector Diameter2-1/2 Inch
    Collector Length4"
    Flange Thickness.37"
    Port Height1.63"
    Port Width1.42"
    Drivers Side Dimension A4"
    Drivers Side Dimension B15.5"
    Drivers Side Dimension C22"
    Passenger Side Dimension A5"
    Passenger Side Dimension B14.5"
    Passenger Side Dimension C23"
    Hardware IncludedYes
    Gasket(s) IncludedYes
    Sold in QuantityPair