Product Summary

Universal Fit, Block Hugger Header Tube Type, Chrome

    Key Specs

    Header Tube TypeBlock Hugger
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    Material TypeSteel

    Need To Know

    This Product Will Ship Free

    Shipping Policies & FAQs

    Quick and Easy Returns

    Return Policy

    Speedway Motors 9300104C Details

    If you are using ’92-and-later LT4 style D-port heads in your street rod, these shorty headers are for you. The tight-fit headers design fits in a wide variety of applications, and the block hugger headers have built-in OEM-style donut seals on the collectors so no gaskets or collector reducers are needed.

    • Compact design
    • Chrome plated
    • Ball flange pipe connection
    • 3/8” thick flanges w/ oval 1.29" x 1.67" port configuration
    • 16-gauge tubing
    • Header bolts and exhaust gaskets are included
    • Collector reducers are not included but offered below
    • May require modification to accommodate knock sensors in some applications
    Chrome Warning: Due to a revised chroming process brought on by recent EPA regulations and high labor costs, today's chrome is not the quality of days gone by. Be Aware: Exhaust components which are chrome plated are now much more susceptible to blueing, blistering, peeling & corrosion. No warranty or returns on chrome exhaust items once them have been installed.

    Not legal for sale or use in California on pollution controlled vehicles


    • 1992 and later LT-4 engines
    • Compact design will fit a wide variety of early street rods
    • Will not fit 1955-1957 Chevys, Camaros, Chevelles or other modern cars with crossmembers under the two center exhaust ports


    Guides & Documents

    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.

    Speedway Motors 9300104C Specifications

    MFG. Part #9300104C
    BrandSpeedway Motors
    Header Tube TypeBlock Hugger
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    Material TypeSteel
    Exhaust Port ShapeOval
    Collector Diameter2-1/2 Inch
    Hardware IncludedYes
    Gasket(s) IncludedYes
    Collector Attachment TypeBall and socket
    Collector Reducers IncludedNo
    Flange Thickness.38"
    Port Height1.67"
    Port Width1.29"
    Header Dimension A4.25"
    Header Dimension B10.50"
    Header Dimension C18.38"
    Sold in QuantityEach