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Speedy Bill
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Spark Plugs, Wires and Accessories

Shop Oval Track Ignitions At Speedway Motors

Speedway Motors is your number source for high performance racing ignition components. Our great assortment of HEI distributors, ignition boxes, and racing coils are sure to light your fire. Plus, Speedway stocks a complete listing of racing spark plugs for all popular applications.

Featured Products
  • Autolite AR133 14mm Racing Spark Plug-5/8 Hex, Tapered, .46 Reach, Med
    Autolite AR133 14mm Racing Spark Plug-5/8 Hex, Tapered, .46 Reach, Med
    (Part #373133)
    x
                

    Autolite Racing spark plugs feature a cut back ground electrode, anti-corrosive nickel plating, and large ground electrode for better heat transfer. Heat range Medium. 

    • Standard tip
    • 14 mm plug
    • .460" reach
    • 5/8" hex
    • Tapered seat
    • Non-resistor
    • Vendor Number: AR133

    Note: Please use the Vendor Number to reference the PDF chart links listed.

    Heat Range Chart (PDF)

    Racing Plug Tech Note (PDF)

    Understanding Heat Range (PDF)

    Autolite Cross Reference Chart (PDF)

  • Taylor Cable 76640 8mm Solid Core Wires, Under Headers, HEI, 90  , Blue
    Taylor Cable 76640 8mm Solid Core Wires, Under Headers, HEI, 90 , Blue
    (Part #69876640)
    x
                

    Taylor Cable’s 8mm Spiro-Pro Series outperforms the competition in both looks and performance at a price you can afford. Spiro-Pro is simply a top of the line high performance 8mm ignition wire and is an excellent choice for race only applications with it's solid wire core.

    • High grade silicone over silicone resists temperatures up to 600°
    • Color coordinated silicone boots add a touch of class
    • HEI boots have "Professional Grips" for easy on/off installation
    • Double spring locking spark plug terminals provide a firm grip
    • Wire core for racing applications
    • Use with magnetos and point style ignition systems (non electronic)
    • Fully assembled
    • Coil wire is 35" long and requires final assembly
  • MSD 35599 8.5mm Spark Plug Wires Set, S/B Chevy HEI, Under Headers
    MSD 35599 8.5mm Spark Plug Wires Set, S/B Chevy HEI, Under Headers
    (Part #54735599)
    x
                

    What makes or breaks a plug wire is not only how well the wire is insulated, but how low of resistance the center core has. These assembled wire sets test 40-50 ohms per foot, while most others test 1500 ohms per foot.

    These low resistance spark plug wires are designed for Small Block Chevys with HEI and are routed under the headers. 

    Learn how to properly attach new spark plug terminals and boots by reading our tech article. How to Install Spark Plug Wire Ends.

    MSD Rebate (Link)

  • Spark Plug Boot Protectors, Set/8
    Spark Plug Boot Protectors, Set/8
    (Part #6982524)
    x
                Spark plug protector eliminates that melted boot problem! Heat treated fiberglass, universal size fits most boots - even 90°. Protects up to 1200°. Non-flammable, non-reactive to petroleum products and resists water and fungus. Overall length is 6.25".
            
  • MSD 32839 Super Conductor Plug Wires, Vortec V-6, 98-99 4.3 Liter
    MSD 32839 Super Conductor Plug Wires, Vortec V-6, 98-99 4.3 Liter
    (Part #54732839)
    x
                The MSD 8.5mm Super Conductor Wire is "the" performance wire.Engineered from the inside out, the 8.5 offers everything you have everwanted in a wire; incredibly low resistance without electronic interference! In a single 12 inch length of Super Conductor Wire there is only 40 - 50 ohms of resistance! That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it's great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) "choke". This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. The MSD 8.5mm Super Conductor Plug Wire is available in Universal Kits and Bulk Lengths.

    Installation Instructions (PDF)

    Installation Instructions (PDF)

    • DEi 010502 Protect-A-Boot Spark Plug Boot Heat Shield, Silver, 8 Pack
      DEi 010502 Protect-A-Boot Spark Plug Boot Heat Shield, Silver, 8 Pack
      (Part #35610502)
      x
                  

      Protect-A-Boots are made from a high temperature resistant glass fiber material and treated with a proprietary coating, Protect-A-Boots provide spark plug boot and wire protection from extreme under hood heat.

      • Double-wall construction for added durability
      • Helps prevent burn-through, hardening and cracking of boots
      • Installs in seconds
      • Universal-fits most straight or angled boots
      • Withstands 1200°F direct continuous heat
      • Non-flammable & protects against chemicals & resists water

      Protect-A-Boot Instructions (PDF)

      Exhaust Wrap Frequently Asked Questions (PDF)  

       

    • MSD 34605 Multi-Angle Spark Terminals, 100 each
      MSD 34605 Multi-Angle Spark Terminals, 100 each
      (Part #54734605)
      x
                  These spark plug terminals are available in 100 quantities for those who like to make their own set.
              
    • MSD 5530 Street-Fire Wire Set Chrys. 318-360, Socket
      MSD 5530 Street-Fire Wire Set Chrys. 318-360, Socket
      (Part #5475530)
      x
                  The Street Fire Spark Plug Wires feature a low resistance conductor thats wrapped in a sleek and durable black sleeve. The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.
      • Helically wound conductor suppresses electro and radio noise
      • Kevlar core combination for great strength and durability
      • Heavy duty terminals for secure connection
      • 8mm silicone and synthetic jacket resists heat and abrasion
      • 500 Ohms per foot resistance for improved spark delivery and power
      • Silicone boots protect against high exhaust temps

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    "Oval Track, Spark Plugs, Wires and Accessories" Page 1 of 19

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    • Accel 8023 8.8 Spiral Core Spark Plug Wires, HEI, Straight Boot
      Accel 8023 8.8 Spiral Core Spark Plug Wires, HEI, Straight Boot
      (Part #1058023)
      x
                  

      Makes power, not static.  With today's mega-watt, ultra-sensitive car stereo systems, that means "hiss-free" high fidelity. Thanks to a special graphite-impregnated fiberglass conductor, ACCEL 8.8 wire has the structural integrity to handle the high performance that can cause other wires to self-destruct.  Yellow only.

      • Rated to 550 degrees F
      • 8.8mm yellow high temp silicone jacket
      • For race and street applications
      • 500 ohm/ft. RFI suppression
      • Red plug boots

      Learn how to properly attach new spark plug terminals and boots by reading our tech article. How to Install Spark Plug Wire Ends.

    • MSD 31889 Red Super Conductor Ford 4.6L, 5.4L, Universal
      MSD 31889 Red Super Conductor Ford 4.6L, 5.4L, Universal
      (Part #54731889)
      x
                  The MSD 8.5mm Super Conductor Wire is "the" performance wire.Engineered from the inside out, the 8.5 offers everything you have everwanted in a wire; incredibly low resistance without electronic interference! In a single 12 inch length of Super Conductor Wire there is only 40 - 50 ohms of resistance! That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it's great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) "choke". This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. The MSD 8.5mm Super Conductor Plug Wire is available in Universal Kits and Bulk Lengths.

      Installation Instructions (PDF)

      • 40-50 Ohms per foot of resistance!
    • MSD 32939 Super Conductor Plug Wires, 98-01 Ford ZX-2, 2.0L, 4 cyl
      MSD 32939 Super Conductor Plug Wires, 98-01 Ford ZX-2, 2.0L, 4 cyl
      (Part #54732939)
      x
                  Please view the product's page for more information
              
    • MSD 32709 Super Conductor Plug Wires, Diamante, GT3000 Turbo V6 92-96
      MSD 32709 Super Conductor Plug Wires, Diamante, GT3000 Turbo V6 92-96
      (Part #54732709)
      x
                  Please view the product's page for more information
              
    • MSD 5561 Street-Fire Wire Set Chevy 366-454 Socket
      MSD 5561 Street-Fire Wire Set Chevy 366-454 Socket
      (Part #5475561)
      x
                  The Street Fire Spark Plug Wires feature a low resistance conductor thats wrapped in a sleek and durable black sleeve. The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.
      • Helically wound conductor suppresses electro and radio noise
      • Kevlar core combination for great strength and durability
      • Heavy duty terminals for secure connection
      • 8mm silicone and synthetic jacket resists heat and abrasion
      • 500 Ohms per foot resistance for improved spark delivery and power
      • Silicone boots protect against high exhaust temps
    • MSD 31223 Black Super Conductor 8 Cyl, 90 Deg Plug, 90 Deg Plug
      MSD 31223 Black Super Conductor 8 Cyl, 90 Deg Plug, 90 Deg Plug
      (Part #54731223)
      x
                  The MSD 8.5mm Super Conductor Wire is "the" performance wire.Engineered from the inside out, the 8.5 offers everything you have everwanted in a wire; incredibly low resistance without electronic interference! In a single 12 inch length of Super Conductor Wire there is only 40 - 50 ohms of resistance! That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it's great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) "choke". This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. The MSD 8.5mm Super Conductor Plug Wire is available in Universal Kits and Bulk Lengths.

      Installation Instructions (PDF)

      • Champion 670 V59C 14mm Racing Spark Plug-.46 In Reach, 5/8 In Hex, Hot
        Champion 670 V59C 14mm Racing Spark Plug-.46 In Reach, 5/8 In Hex, Hot
        (Part #271V59C)
        x
                    

        Champion Racing Series plugs include all the features of their conventional plugs, but are built with extreme engine conditions and durability in mind.  For GM & Ford cast iron cylinder heads and some OE design aluminum heads. Will not fit GT40 heads.

        • Nickel Alloy Ground and Center Electrodes
        • Copper Core Center Electrode Allows for Increased Conductivity and Heat Control
        • Peanut Plug
        • 14mm, .460" reach, 5/8" hex
        • Projected Tip
        • Heat Range: Hot (59)

        Champion Spark Plug Guide (GIF)

        Champion Heat Range Guide (GIF)

        Champion Conversion Chart (GIF)

        Spark Plug Gapping Instructions (GIF)

        Autolite, Champion, NGK Cross Reference Chart (PDF)

      • DEi 010502 Protect-A-Boot Spark Plug Boot Heat Shield, Silver, 8 Pack
        DEi 010502 Protect-A-Boot Spark Plug Boot Heat Shield, Silver, 8 Pack
        (Part #35610502)
        x
                    

        Protect-A-Boots are made from a high temperature resistant glass fiber material and treated with a proprietary coating, Protect-A-Boots provide spark plug boot and wire protection from extreme under hood heat.

        • Double-wall construction for added durability
        • Helps prevent burn-through, hardening and cracking of boots
        • Installs in seconds
        • Universal-fits most straight or angled boots
        • Withstands 1200°F direct continuous heat
        • Non-flammable & protects against chemicals & resists water

        Protect-A-Boot Instructions (PDF)

        Exhaust Wrap Frequently Asked Questions (PDF)  

         

      • MSD 32279 Super Conductor Plug Wires Dodge, Chrys, Ply.,Mit. 2.0L DOHC
        MSD 32279 Super Conductor Plug Wires Dodge, Chrys, Ply.,Mit. 2.0L DOHC
        (Part #54732279)
        x
                    The MSD 8.5mm Super Conductor Wire is "the" performance wire.Engineered from the inside out, the 8.5 offers everything you have everwanted in a wire; incredibly low resistance without electronic interference! In a single 12 inch length of Super Conductor Wire there is only 40 - 50 ohms of resistance! That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it's great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) "choke". This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. The MSD 8.5mm Super Conductor Plug Wire is available in Universal Kits and Bulk Lengths.
        • MSD 34615 90deg. Spark Plug Terminals, 100 each
          MSD 34615 90deg. Spark Plug Terminals, 100 each
          (Part #54734615)
          x
                      These spark plug terminals are what you need when you custom make your own sets. Available in 100 quanties.
                  
        • MSD 5571 Street-Fire Wire Set Chev Pickup, BB EFI, 90-97
          MSD 5571 Street-Fire Wire Set Chev Pickup, BB EFI, 90-97
          (Part #5475571)
          x
                      The Street Fire Spark Plug Wires feature a low resistance conductor thats wrapped in a sleek and durable black sleeve. The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.
          • Helically wound conductor suppresses electro and radio noise
          • Kevlar core combination for great strength and durability
          • Heavy duty terminals for secure connection
          • 8mm silicone and synthetic jacket resists heat and abrasion
          • 500 Ohms per foot resistance for improved spark delivery and power
          • Silicone boots protect against high exhaust temps
        • Taylor Cable 76640 8mm Solid Core Wires, Under Headers, HEI, 90  , Blue
          Taylor Cable 76640 8mm Solid Core Wires, Under Headers, HEI, 90 , Blue
          (Part #69876640)
          x
                      

          Taylor Cable’s 8mm Spiro-Pro Series outperforms the competition in both looks and performance at a price you can afford. Spiro-Pro is simply a top of the line high performance 8mm ignition wire and is an excellent choice for race only applications with it's solid wire core.

          • High grade silicone over silicone resists temperatures up to 600°
          • Color coordinated silicone boots add a touch of class
          • HEI boots have "Professional Grips" for easy on/off installation
          • Double spring locking spark plug terminals provide a firm grip
          • Wire core for racing applications
          • Use with magnetos and point style ignition systems (non electronic)
          • Fully assembled
          • Coil wire is 35" long and requires final assembly
        • MSD 34033 Super Conductor Bulk Wire, Black 6Ft
          MSD 34033 Super Conductor Bulk Wire, Black 6Ft
          (Part #54734033)
          x
                      Please view the product's page for more information
                  
        • MSD 31369 Super Conductor Plug Wires Chevy 454, 74-76 HEI
          MSD 31369 Super Conductor Plug Wires Chevy 454, 74-76 HEI
          (Part #54731369)
          x
                      The MSD 8.5mm Super Conductor Wire is "the" performance wire.Engineered from the inside out, the 8.5 offers everything you have everwanted in a wire; incredibly low resistance without electronic interference! In a single 12 inch length of Super Conductor Wire there is only 40 - 50 ohms of resistance! That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it's great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) "choke". This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. The MSD 8.5mm Super Conductor Plug Wire is available in Universal Kits and Bulk Lengths.

          Installation Instructions (PDF)

          • MSD 34039 Super Conductor 8.5mm Wire, 6Ft Bulk
            MSD 34039 Super Conductor 8.5mm Wire, 6Ft Bulk
            (Part #54734039)
            x
                        Please view the product's page for more information
                    
          • Champion 723 N57DR 14mm Alky Race Spark Plug-13/16 Hex-.75 Reach-Cold
            Champion 723 N57DR 14mm Alky Race Spark Plug-13/16 Hex-.75 Reach-Cold
            (Part #271N57DR)
            x
                        Please view the product's page for more information
                    
          • MSD 31869 Super Conductor Plug Wires, Buick Grand Natl ,3.8L Distless
            MSD 31869 Super Conductor Plug Wires, Buick Grand Natl ,3.8L Distless
            (Part #54731869)
            x
                        Please view the product's page for more information
                    
          • Taylor Cable 70650 8mm Spark Plug Wires, 90 Deg Boot, Wire Core, Blue
            Taylor Cable 70650 8mm Spark Plug Wires, 90 Deg Boot, Wire Core, Blue
            (Part #69870650)
            x
                        Taylor 8mm Pro Wires are the ultimate in spark plug wires for serious racing machines. 
            • High grade silicone over silicone resists temperatures up to 600°
            • Color coordinated silicone boots add a touch of class
            • HEI boots have "Professional Grips" for easy on/off installation
            • Double spring locking spark plug terminals provide a firm grip
            • Wire core for racing applications
            • Universal fit for HEI and socket style caps 

            Recommended for use with Vertex Magnetos.

            8mm Pro Wire Application Chart (GIF)

            Learn how to properly attach new spark plug terminals and boots by reading our tech article. How to Install Spark Plug Wire Ends.

          • Taylor Cable 70250 8mm Spark Plug Wires, Wire Core, 90 Degree, Red
            Taylor Cable 70250 8mm Spark Plug Wires, Wire Core, 90 Degree, Red
            (Part #69870250)
            x
                        Taylor 8mm Pro Wires are the ultimate in spark plug wires for serious racing machines. 
            • High grade silicone over silicone resists temperatures up to 600°
            • Color coordinated silicone boots add a touch of class
            • HEI boots have "Professional Grips" for easy on/off installation
            • Double spring locking spark plug terminals provide a firm grip
            • Wire core for racing applications
            • Universal fit for HEI and socket style caps 

            Recommended for use with Vertex Magnetos.

            8mm Pro Wire Application Chart (GIF)

            Learn how to properly attach new spark plug terminals and boots by reading our tech article. How to Install Spark Plug Wire Ends.

          • MSD 30829 Super Conductor Plug Wires,BB Chevy, With 8541 Crab Cap
            MSD 30829 Super Conductor Plug Wires,BB Chevy, With 8541 Crab Cap
            (Part #54730829)
            x
                        Please view the product's page for more information
                    
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