Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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America's Oldest Speed Shop ®

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Shop Muscle Car Headers & Exhaust At Speedway Motors

Speedway Motors has the muscle car headers and mufflers you need, at a price you can afford. Check out our huge inventory of chassis headers, LS1 swap headers and tight-fit block hugger headers, all available with durable ceramic AHC coating, polished, or stainless steel. Don't forget about our cast iron exhaust manifolds and dual exhaust kits as well. With an awesome selection of high performance Flowmaster mufflers, exhaust wrap, glasspacks, and exhaust tips, Speedway can help you get the roar you want from your muscle car without the roar from your wife for spending too much money!

"Muscle Car, Hardware" Page 1 of 1

  • Allen Head Header Bolts, 3/8 Inch-16 x 3/4 Inch Long
    Allen Head Header Bolts, 3/8 Inch-16 x 3/4 Inch Long
    (Part #550916)
    x
                

    These bolts feature an Allen head type. They are perfect for headers and work well for other applications also.  Allen Head header bolts have 3/8"-16 X 3/4" long threads.

    • Overall Length: 1.12"
    • Under Head Length: 3/4"
    • Thread Pitch: 3/8"-16
    • Steel
    • Zinc
    • Wrench Type: Allen
    • Set of 12 bolts
  • Dynatech Header Bolts, M8 x 1.25 mm, Pack/12
    Dynatech Header Bolts, M8 x 1.25 mm, Pack/12
    (Part #31179450112)
    x
                

    Dynatech® has a wide variety of metric header bolts to fit your heads.

  • Dynatech Header Bolts, 3/8 x 3/4 Inch, Pack/12
    Dynatech Header Bolts, 3/8 x 3/4 Inch, Pack/12
    (Part #31179400112)
    x
                

    Dynatech® has a wide variety of header bolts to fit your heads.

  • Header Bolts, 5/16-18 x 3/4 Inch, Set/14
    Header Bolts, 5/16-18 x 3/4 Inch, Set/14
    (Part #550976)
    x
                

    Standard bolts for headers for most makes of heads. Heat treated steel.

  • Dynatech Header Bolts, 3/8 Inch, Hex Head, Pack/16
    Dynatech Header Bolts, 3/8 Inch, Hex Head, Pack/16
    (Part #3116000116)
    x
                Premium quality steel header bolts by Dynatech®.
            
  • Dynatech 794-50117 Header Bolts, M8 x 1.25 mm, Pack/17
    Dynatech 794-50117 Header Bolts, M8 x 1.25 mm, Pack/17
    (Part #31179450117)
    x
                

    Dynatech® has a wide variety of metric header bolts to fit your heads.

  • ARP Header Bolt & Stud Kit Set/16
    ARP Header Bolt & Stud Kit Set/16
    (Part #1011001403)
    x
                FNSL6R billet Forged six-piston calipers with 13" -14"  rotors deliver the ultimate combination for braking power and style in this group of kits engineered for traditional non-ABS spindles on American muscle cars and vintage rods. Built exclusively for 17"  and larger wheels, SL6 kits enhance tire and suspension upgrades on all types of custom show and high performance dual-purpose street and track machines. A full range of options for caliper finishes and rotor designs are guaranteed to catch the eye of the most discriminating enthusiast while providing optimized brake performance for every individual application.

    Installation Instructions (PDF)

  • Dynatech Header Bolts, 3/8 x 3/4 Inch, Pack/14
    Dynatech Header Bolts, 3/8 x 3/4 Inch, Pack/14
    (Part #31179400114)
    x
                

    Dynatech® has a wide variety of header bolts to fit your heads.

  • Garage Sale - Dynatech Header Bolts, M8 x 1.25mm, Hex Head, Pack/16
    Garage Sale
    Garage Sale - Dynatech Header Bolts, M8 x 1.25mm, Hex Head, Pack/16
    (Part #3116050116)
    x
                

    These bolts are garage sale priced because they have been discontinued.

     NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS  

    Premium quality steel metric header bolts by Dynatech®.

     

     

  • Garage Sale - Dynatech 772-32530 Vortex Insert Cones, 4 Inch
    Garage Sale
    Garage Sale - Dynatech 772-32530 Vortex Insert Cones, 4 Inch
    (Part #AUP2928)
    x
                Please view the product's page for more information
            
  • Garage Sale - Small Block Chevy Header Studs, Set Of 12
    Garage Sale
    Garage Sale - Small Block Chevy Header Studs, Set Of 12
    (Part #9300300.GS)
    x
                

    These studs are 3/8"-24 on one end and 3/8"-16 on the other end.

     

     These studs are garage sale priced because they are different than what we currently offer.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS