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

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Shop Classic Truck Headers & Exhaust At Speedway Motors

Speedway Motors has the classic truck headers and mufflers you need, at a price you can afford. Check out our huge inventory of chassis headers, Flathead V8 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 exhaust tips as well. With an awesome selection of high performance Flowmaster mufflers, exhaust wrap, glasspacks, and various gaskets, Speedway Motors is your classic truck exhaust superstore!

Featured Products
  • Dynatech® 794-00112 Header Bolts, 3/8-16 x 3/4 Inch, Pack/12
    Dynatech® 794-00112 Header Bolts, 3/8-16 x 3/4 Inch, Pack/12
    (Part #31179400112)
    x
                

    These Dynatech® 3/8"-16 x 3/4" header bolts are a perfect fit for bolting headers onto your AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

  • 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)

  • Swedged Aluminum Throttle Linkage Tubes, 3/16 Inch (10-32) Thread
    Swedged Aluminum Throttle Linkage Tubes, 3/16 Inch (10-32) Thread
    (Part #94055301)
    x
                

    This swedged throttle linkage tubing is tapped 3/16" (10-32) LH and RH thread. One end of the throttle rod will have left hand threads, and the other end will have right hand threads. Made of 5/16" x 0.049 round aluminum tubing.

    Note: When measuring for your tube length, you will want to allow 1.5" in length for the rod ends (3/4" of length for each end when calculating your eye-to-eye measurement. For instance, an eye-to-eye length of 11.5" would require a 10" swedged tube.

  • Viair 92835 Air Suspension Tank Drain Petcock, 1/4 Inch NPT
    New
    Viair 92835 Air Suspension Tank Drain Petcock, 1/4 Inch NPT
    (Part #91092835)
    x
                

    Keep your air system tuned up by draining excess moisture monthly with a Viair Drain Petcock. This drain petcock is made out of brass and has a nice natural finish. It features a thread pitch of 1/4 in. NPT.

    • Brass construction
    • Natural finish
    • 1/4 inch thread pitch 
  • Aluminum Allen Pipe Plugs, 1/2 Inch NPT
    Aluminum Allen Pipe Plugs, 1/2 Inch NPT
    (Part #6176206)
    x
                

    Allen pipe plugs are precision machined to ensure precise thread engagement. These lightweight aluminum plug fittings are designed to match up with all performance hose and hose ends. Blue anodized finish.

    AN Thread Sizing Guide (GIF)

    Fitting Thread Application Chart (GIF)

  • Universal Drive Shaft U-Bolts, 1-1/16 Inch Cap
    Universal Drive Shaft U-Bolts, 1-1/16 Inch Cap
    (Part #91048319)
    x
                Speedway universal drive shaft U-bolts are forged steel for 50% more strength than standard units. Fits U-joints with 1-1/16" diameter caps.
            
  • Gates 28517 Unicoil Hose Spring, 1-3/8 OD Hose
    Gates 28517 Unicoil Hose Spring, 1-3/8 OD Hose
    (Part #39528517)
    x
                

    These are used for both good looks and keeping a rubber hose bent in the shape you require. 

    100% stainless steel. 

    Gates Unicoil Stainless Steel Hose Spring - For 1" I.D. hose with 1-3/8" O.D.

  • Ididit 2503100040 Universal Billet Aluminum Knob, 1/4 Inch Bore
    Ididit 2503100040 Universal Billet Aluminum Knob, 1/4 Inch Bore
    (Part #4465310)
    x
                

    Universal billet aluminum switch knobs work great as a headlight switch knob, dash knob, door knobs, lock knob, wiper knob, or a radio knob. These 1/4" bore knobs are retained with a set screw.

    • Maximum Diameter:  3/4"
    • Minimum Diameter:  1/2"
    • Height:  1-1/8"

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  • Speedway Allen Head Header Bolts, 3/8-16 x 3/4 Inch, Set/12
    Speedway Allen Head Header Bolts, 3/8-16 x 3/4 Inch, Set/12
    (Part #550916)
    x
                

    These zinc plated steel header bolts feature an Allen head and have 3/8"-16 x 3/4" long threads. They are perfect for use with headers on AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

    • Overall Length: 1.12"
    • Under Head Length: 3/4"
    • Thread Pitch: 3/8"-16
    • Steel
    • Zinc
    • Wrench Type: Allen
    • Set of 12 bolts
  • Dynatech® 794-50112 Header Bolts, M8 x 1.25mm, Pack/12
    Dynatech® 794-50112 Header Bolts, M8 x 1.25mm, Pack/12
    (Part #31179450112)
    x
                

    These Dynatech® M8 x 1.25mm Metric header bolts are a perfect fit for bolting headers to your GM LS1, LS2, LS3, LS6, LS7 or Vortec 4.8L, 5.3L, 6.0L, 6.2L engines.

  • Dynatech® 794-00112 Header Bolts, 3/8-16 x 3/4 Inch, Pack/12
    Dynatech® 794-00112 Header Bolts, 3/8-16 x 3/4 Inch, Pack/12
    (Part #31179400112)
    x
                

    These Dynatech® 3/8"-16 x 3/4" header bolts are a perfect fit for bolting headers onto your AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

  • Flathead Ford Header Bolt Kit
    Flathead Ford Header Bolt Kit
    (Part #5509004)
    x
                These premium header bolts kits are designed for use on Ford Flathead V8's. They feature 1" long threads and  (4) bolts are 7/16"-14 and (8) bolts are 3/8"-16.
    • Set of 12
    • 6 Point hex head
    • Zinc plated
  • 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
                

    These heat-treated steel hex head header bolts ffeature a black oxide coating. They work great for bolting headers to your small block Chrysler 273, 318, 340 or 360.

    Has 5/16"-18 x 3/4" threads. Set of 14 bolts.

  • Header Bolts, 3/8-16 x 3/4 Inch, Set/16
    Header Bolts, 3/8-16 x 3/4 Inch, Set/16
    (Part #550919)
    x
                

    These heat-treated steel header bolts are zinc plated and have 3/8"-16 x 3/4" threads. They are perfect for use with headers on big block Chevy 396-454, Chrysler 426 Hemi, small block Ford 289-351W, or big block Ford 429-460.

    Set of 16. 

  • Stainless Steel Hex Head Header Bolts, 3/8-16 x 3/4, Set/12
    Stainless Steel Hex Head Header Bolts, 3/8-16 x 3/4, Set/12
    (Part #91303827)
    x
                

    These stainless steel bolt kits will dress up your small block Chevy 262-400 engine while giving it corrosion-resistant performance. Hex head with 3/8"-16 x 3/4" threads. Also works on AMC 290-401, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455 engines.

    Set of 12 bolts. 

  • Stainless Steel Allen Head Header Bolts, 3/8-16 x 3/4, Set/12
    Stainless Steel Allen Head Header Bolts, 3/8-16 x 3/4, Set/12
    (Part #91303828)
    x
                

    These stainless steel bolt kits will dress up your small block Chevy 262-400 engine while giving it corrosion-resistant performance. Features an Allen head with 3/8"-16 x 3/4" threads. Also works on AMC 290-401, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455 engines.

    Set of 12 bolts. 

  • Dynatech® Header Bolts 3/8 x 1 Inch, 12 Point, 16 Pack
    Dynatech® Header Bolts 3/8 x 1 Inch, 12 Point, 16 Pack
    (Part #3116020116)
    x
                

    Dynatech® 12-point header bolts with 3/8" x 1" threads. They are perfect for use with headers on AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

    Set of 16 bolts. 

     

  • Stainelss Steel Flathead Ford V8 Fenton Header Bolts, Set/12
    Stainelss Steel Flathead Ford V8 Fenton Header Bolts, Set/12
    (Part #91303960)
    x
                Premium stainless steel socket head bolts for your Flathead Ford cast Fenton Headers. Each kit includes stainless steel AN washers.
            
  • ARP Fasteners 400-1202 Stainless Steel Header Bolts, 3/8-16 x 3/4, Set/16
    ARP Fasteners 400-1202 Stainless Steel Header Bolts, 3/8-16 x 3/4, Set/16
    (Part #1014001202)
    x
                

    ARP Fasteners 12 point head header bolts with 3/8"-16 x .750" UHC threads. Includes washers. Uses 3/8" 12 pt. socket. 170,000 PSI.

    Perfect for use with headers on AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

  • Header Bolts, 3/8-16 x 3/4 Inch, Set/12
    Header Bolts, 3/8-16 x 3/4 Inch, Set/12
    (Part #550915)
    x
                

    Heat-treated steel header bolts with a zinc finish. Features a hex head with 3/8"-16 x 3/4" threads. Perfect for use with headers on AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

    Set of 12 bolts. 

  • ARP Fasteners 400-1201 Stainless Steel Header Bolts, 3/8-16 x 3/4, Set/12
    ARP Fasteners 400-1201 Stainless Steel Header Bolts, 3/8-16 x 3/4, Set/12
    (Part #1014001201)
    x
                

    ARP Fasteners 12 point header bolts with 3/8"-16 x .750" UHC threads. Includes washers. Uses 3/8" 12 pt. socket. 170,000 PSI.

    Perfect for use with headers on AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

  • King Chrome Allen Header Bolts, 3/8-16 x 3/4 Inch, Set/12
    King Chrome Allen Header Bolts, 3/8-16 x 3/4 Inch, Set/12
    (Part #91303808)
    x
                

    The final touch to any small block Chevy 262-400 project with headers. Beautifully chrome plated Allen head bolts with 3/8"-16 x 3/4" threads. Set of 12.

    Also work with AMC 290-401, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455 engines. 

  • King Chrome Hex Header Bolts, 3/8-16 x 3/4 Inch, Set/12
    King Chrome Hex Header Bolts, 3/8-16 x 3/4 Inch, Set/12
    (Part #91303807)
    x
                

    The final touch to any small block Chevy 262-400 project with headers. Beautifully chrome plated hex head bolts with 3/8"-16 x 3/4" threads. Set of 12.

    Also works on AMC 290-401, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455 engines. 

  • Dynatech® 794-19112 Header Bolts, 3/8 Inch Allen Head, Pack/12
    Dynatech® 794-19112 Header Bolts, 3/8 Inch Allen Head, Pack/12
    (Part #31179419112)
    x
                

    Dynatech® steel Allen head header bolts with 3/8" threads. They are perfect for use with headers on AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455.

    Set of 12 bolts. 

  • Dynatech® Header Bolt 3/8 x Inch, 12 Point, 12 Pack
    Dynatech® Header Bolt 3/8 x Inch, 12 Point, 12 Pack
    (Part #3116020112)
    x
                

    Dynatech® 12 point header bolts with 3/8" x 1" threads. Works with AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455 engines.

    Set of 12 bolts. 

     

  • Dynatech® Header Bolts, M8 x 1.25mm, Hex Head, Pack/17
    Dynatech® Header Bolts, M8 x 1.25mm, Hex Head, Pack/17
    (Part #3116050117)
    x
                

    These premium quality steel header bolts by Dynatech® feature Metric M8 x 1.25mm threads and a hex head. Works with tube headers on 1991-up Ford Modular 4.6L and 5.4L as well as 2003-up Chrysler/Dodge Hemi 5.7L, 6.1L and 6.4L engines.

    Set of 17 bolts. 

  • Dyantech® Header Bolts, 3/8 x 3/4 Inch, Pack/16
    Dyantech® Header Bolts, 3/8 x 3/4 Inch, Pack/16
    (Part #31179400116)
    x
                

    Dynatech® steel header bolts featuring 3/8" x 3/4" threads and a hex head. Ideal for use with tube headers on big block Chevy 396-454, Chrysler 426 Hemi, small block Ford 289-351W, and big block Ford 429-460 engines.

    Set of 16 bolts. 

  • Header Bolts, 3/8-16 x 1 Inch, Set/12
    Header Bolts, 3/8-16 x 1 Inch, Set/12
    (Part #550917)
    x
                

    Heat-treated steel header bolts featuring 3/8"-16 x 1" threads, a hex head, and a black oxide finish. Fits tube headers onto AMC 290-401, small block Chevy 262-400, big block Chrysler 383-400 (exc. 426 Hemi), Pontiac 326-455, and Oldsmobile 330-455 engines.

    Set of 12 bolts. 

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