Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Muscle Car Electrical Wiring & Lights At Speedway Motors

Speedway Motors is your one stop shop for muscle wiring and lighting. Make wiring your hot rod simple with easy-to-use wiring harnesses and step by step instructions. Finish off your muscle car with specialty headlights, LED dome lights, and LED tail lights. Find anything from various switches and relays to hidden radio antennas and let Speedway Motors eliminate any and all of your American muscle car electrical system problems!

Featured Products
Two Post Battery Disconnect Switch
Two Post Battery Disconnect Switch
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            Remote battery disconnect switch for safety and theft protection. A battery kill switch is required for use with alternators by the NHRA. Battery shut off switch can be remote mounted or where specified for saftey and  convenience.
  • 180 amp continuous, 1000 amp instantaneous
  • Die cast lever
  • Fits panel through 3/16" thick

910-64500 Instructions (PDF)

Heavy Duty Turn Signal Switch
Heavy Duty Turn Signal Switch
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For early autos not equipped with right and left turn signals. Chrome plated finish. Switch works with 6 or 12 volt systems. Includes wiring diagram. Clamps to any steering column with included stainless hose clamp. Switch has four-way flashers and does not self cancel.

You will need to purchase a three-prong flasher to use with this switch (part number 910-64046). For LED light applications, you will also need a LED dummy load resistor (part number 910-03030).

910-62860 Instructions (PDF)

Universal Headlight Switch With Hi/Low
Universal Headlight Switch With Hi/Low
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This headlight switch has four positions. In is off, out one notch is park lights, out another notch is lows beams, and all the way out is high beams. Screw type terminals. 3/8" mounting hole.

910-80154 Instructions (PDF) 

Power Window Kit
$149.99
Product Rating: 5.00 Stars
Power Window Kit
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  • Kit for 2 doors
  • Works for all flat glass windows
  • Straight up and down travel only
  • 6"-24" Glass height
  • Includes: Switches, wiring and crossover kit

Instructions (PDF)

"Muscle Car, Electrical, Lighting and Body" Page 1 of 9

  • Modern Driveline Reverse Switch Harness for GM T5 and T56 Transmissions
    Modern Driveline Reverse Switch Harness for GM T5 and T56 Transmissions
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    These harnesses for transmission neutral safety switch/reverse light switches are designed for use with GM T5 and T56 transmissions.

    • Factory style
    • For GM T5 and T56 transmissions

     

  • Safety Kill Switch
    $19.99
    Product Rating: 5.00 Stars
    Safety Kill Switch
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    This is the best kill switch we've found! Works with standard ignition only. Water resistant with O-ring shaft seal. Pull on, push off with silver contacts.

    20 amp rating at 12 VDC.

  • Painless Wiring 70402 Two Wire Weatherpack Connectors
    Painless Wiring 70402 Two Wire Weatherpack Connectors
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    A real water-tight connection. Each number consists of one male and one female component. Accepts 14 - 16 gauge wire.

  • Universal Electric Window Switch
    Universal Electric Window Switch
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    • Fits All Vehicles
    • Includes 5 Shafts to Fit All Window Cranks
    • 15 Degrees Up Or Down Activates The Switch
    • Billet Aluminum
    • Dead Lock Stop Design Will Not Break
    • Works With All Power Window Systems
    • Ultra Thin Design
    • Designed In The USA
    • Manufacturer Lifetime Warranty
    • Smallest System On The Market
    Instructions (PDF)
  • Stewart Warner 82629 GM Speedometer Sender Gear Drive Tip - .104 Inch
    Stewart Warner 82629 GM Speedometer Sender Gear Drive Tip - .104 Inch
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    Stewart Warner square drive tip to attach sender gear (part number 66582623B) to a GM transmission.

    • .104 Inch drive tip
  • Mechanical Speedometer Universal Dash Gauge Harness
    Mechanical Speedometer Universal Dash Gauge Harness
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    If you want to keep your under-dash area organized or you think that you will need to remove gauges from time to time, then you need to install this universal gauge harness. It will connect to all major brand gauges including Auto Meter and VDO and works with most dash layouts and sizes.

    Includes all connections for volt meter, oil pressure, temperature, tachometer, and fuel gauges, plus high beams and turn signals. Plus, the purpose of each wire is printed directly on it for a fool-proof installation.

    • Fits all dash layouts
    • Omega style harness
    • Color coded and labeled for intended circuit
    • Note: excludes Speedo sender wiring

    One harness has 9 wires that are 18-1/4" long and the other harness has 26 wires with the longest wire 30-3/4" long .

  • Universal Windshield Wiper Switch for Single Motor
    Universal Windshield Wiper Switch for Single Motor
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    These easy-to-use universal windshield wiper switches feature OFF/PARK, LOW and HIGH and are for use with single motor wiper set-ups.

    • 3-position switch 
    • Requires a 7/16" mounting hole
    • (4) blade style terminals

    910-64056 Instructions (PDF)

  • LED 1157 Tail Light Bulb, 1 Inch, Red
    LED 1157 Tail Light Bulb, 1 Inch, Red
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    These LED tail light bulbs put out the light you're after, but don't get hot like normal bulbs. 1157 bulbs have staggered pins and 2 contacts on the plug. The bulbs appear to be clear, but are red when illuminated.

    LED taillight bulbs are quite efficient and use such small amounts of power that a normal flasher will not work correctly. The use of LEDs will almost always require the use of a special "low load" flasher like our 910-64110 (2-prong) or 910-64112 (3-prong.)

     

  • Atomic EFI Installation Kit for GM LS1/LS6 Engines
    Atomic EFI Installation Kit for GM LS1/LS6 Engines
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    These kits complement the Master Kits and provide the necessary brackets and injector connectors to complete an install for LS1/LS6 and LS Trucks. These kits provide different brackets for the rail assemblies as well as different injector connectors to adapt the LS2/3 Master Kit to work on the LS1/LS6 and truck intakes.

    • For LS1/LS6 Atomic Installations
    • Must use with 2950 Atomic LS Master Kit
    • Includes brackets and injector connectors
    • Uses EV1 Injector Harness 

    5472955 Atomic LS1/LS6 Installation Instructions (PDF)

  • Fan/Shroud/Cooler Mounting Kit
    Fan/Shroud/Cooler Mounting Kit
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    This mount kit consists of 4 threaded plastic bolts 3/16" diameter and approx. 8-1/2" long. Also includes 4 1/4" spacers, 8 thin washers, and 4 metal wingnuts.

    Works great for mounting your fan shroud, electric fan, or oil cooler directly to your radiator.

  • Painless Wiring 40008 Four Wire Quick Connect Terminal
    Painless Wiring 40008 Four Wire Quick Connect Terminal
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    Make your own locking quick connect plugs easily and quickly. Each kit contains one male and one female component. Accept 10 - 20 gauge wire.

  • Tridon Replacement Turn Signal Flasher Unit, 3-Prong
    Tridon Replacement Turn Signal Flasher Unit, 3-Prong
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    These state-of-the-art electronic flashers work with standard bulbs. 12 volt operation (will not work on 6 volt systems). Made in the U.S.A.

    • Replacement for turn signal
    • Works with standard bulbs
    • 12 volt operation only
    • 3-Prong
    • Made in the U.S.A.

    Flasher function:

    • The X terminal is the + 12v input
    • The P terminal output drives the flasher indicator
    • The L terminal drives the load (bulbs)

    Note: We recommend the use of our grounded LED flashers for use with LED's (910-64112 3-prong).

  • MSD 8985 Timing Tapes
    $5.99
    Product Rating: 4.50 Stars
    MSD 8985 Timing Tapes
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    MSD's timing tape set comes with eight different tapes to fit balancers from 5-1/4" to 8" diameters.

    MSD Rebate (Link)

  • Universal Mechanical Brake Light Switch
    Universal Mechanical Brake Light Switch
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    Our mechanical brake light switch is "closed" in the at rest position. It breaks the circuit when pushed. Mounts near your brake pedal and the arm can be bent as needed. 42 amp max rating.

    Use for your street rod, truck, or muscle car!

  • 1955 Chevy L.E.D. Back-Up Lights
    1955 Chevy L.E.D. Back-Up Lights
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                The 1955 Chevy cars were not known to have very bright or visible back-up lights. The cure is the addition of L.E.D. conversion kits. 

    These replace old 1157 style bulbs with 14 L.E.D. bulbs that are much brighter, don't put out much heat and last up to 100,000 hours. Stainless steel hardware and easy 30 minute installation.

    911-31032 Instructions (pdf)

  • Stewart Warner 280EA Deluxe Electric Temperature Gauge Sender
    Stewart Warner 280EA Deluxe Electric Temperature Gauge Sender
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    • 100°-240° F range
    • Operates one gauge only
    • 1/8" NPTF; includes adapter for 1/4", 3/8" and 1/2" pipe thread
  • Moroso 26100 Distributor Timing Indicator
    Moroso 26100 Distributor Timing Indicator
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    Fast and accurate method of adjusting ignition timing without use of a timing light. Change timing quickly between heats. Fits all Chevy V8 and 90° V6 distributors. May require minor modification to some manifolds.

    545-26100 Instructions (PDF)

  • DPDT Momentary Toggle Switch
    $14.99
    DPDT Momentary Toggle Switch
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    Universal heavy duty 3-position momentary toggle switch. Features a nickel-plated brass switch, phenolic housing, and plated steel cap. Rated at 25A at 12V, 15A at 24V, and 10A at 36V DC.

    • Mounting Stem:  15/32" -32 thread, 15/32" long, and fits panels up to 9/32"
    • Six Screw Terminals:  6-32 screws
    • Electrical Rating:  25A at 12V, 15A at 24V, and 10A at 36V DC

    Works great as a linear actuator switch!

    Note: Up=Momentary On, Center=Off, Down=Momentary On.

  • Painless Wiring 60101 GM Throttle Body Injection Engine Harness
    Painless Wiring 60101 GM Throttle Body Injection Engine Harness
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                The GM Throttle Body Injection system this Painless Performance harness operates is a perfect upgrade for those fed up with their carburetor fueled engine. Complete stand alone harness allows you to install late model GM fuel injected engine and correct computer into almost any chassis. Harness includes all connections for fuel injection operation: ECM, MAP, O2, TPS, ESC, IAC, IAT, CTS, Knock, Injectors, OBD1 w/SES light, VSS and TCC solenoid. 

    This standard length harness allows four feet from the back of the intake manifold to where the fuseblock and ECM mount. Perfect for those that plan to mount these components under the dash or in the glove box.

    Besides the obvious economy and driveability benefits, check out these other great features that make it easy and painless to install:
    • Foolproof factory connections
    • ALDL (diagnostic) plug
    • Computer controlled fuel pump provision
    • GM color code
    • Closed loop design

    GM Throttle Body Injection Wiring Instructions (PDF)

  • Painless Wiring 30201 Hot Shot Relay
    Painless Wiring 30201 Hot Shot Relay
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    This relay kit allows you to turn over the engine from the engine compartment for adjusting valves. It also overcomes starting problems due to an overheated starter or worn out electrical system by boosting amperage to the starter solenoid every time the vehicle is started.

    This kit includes:

    • Bump start switch with mounting bracket
    • 30 Amp heavy duty relay
    • Relay base with wire harness
    • 30 Amp circuit breaker
    • Crimp-on terminals
    • Mounting hardware

    Hot Shot Relay Kit Installation Instructions (PDF)

  • Replacement Lens for Tri-Bar Headlights 91101004
    Replacement Lens for Tri-Bar Headlights 91101004
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    These replacement tri-bar headlight lens feature a 7" diameter. Curved lens is fluted for superior driving vision. They are replacement for our tri-bar headlight assemblies (91101004).

    • 7" diameter
    • Curved lens is fluted for superior driving vision
    • Replacement for tri-bar headlight (91101004)
  • Double Throw Toggle Switch with Boot
    Double Throw Toggle Switch with Boot
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    Single pole, double throw. On-On configuration. Plastic housing with steel plate. Rubber boot protects switch from dirt and moisture. This toggle switch requires a 1/2" hole to mount it.

    • Three terminals
    • Two toggle positions
    • Rated for 25 amps at 12 volts DC

     

  • Painless Wiring 40024 Jamb Tac Door Jamb Connector, 4 Wire
    Painless Wiring 40024 Jamb Tac Door Jamb Connector, 4 Wire
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                No more ugly wires! Don't wire it... Jamb Tac it! These spring loaded electrical contacts eliminate those ugly wires running into your doors. One pair contains enough parts for one door. One piece installs in the door and one piece installs in the door jam.

    The contact buttons on these jamb tac kits are adjustable in length or depth from 0" to 3/8".
  • Speedway GM Engine Wiring Harness, 1999-02 LS1
    Speedway GM Engine Wiring Harness, 1999-02 LS1
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    Take the fear out of electronic fuel injection! These engine wiring harnesses are designed to make your engine transplant effortless. Each new harness contains in-depth application-specific instruction sheets, clearly marked factory GM connectors, labeled GXL jacketed wire, GM color coding, and pre-fitted corrugated slit loom for an extra value and professional look. All un-needed emissions wiring is eliminated to make the install as simple and reliable as possible. Standard length harnesses are 54" from the back of the engine to the PCM connectors.

    1999-2002 LS1

    • Made from premium grade GXL jacketed automotive wire
    • Most wiring is larger gauge than stock application for durability
    • No splices to reduce points of failure
    • All primary grounding is done at the head or block and grounding points are isolated from each other to reduce electrical interference and minimize ground looping
    • Harness wiring matches GM wiring configuration and jacket colors follow GM color coding for easy identification
    • All electrical connectors are made by Delphi or Packard and are direct fit for GM cars and trucks
    • Can be installed to run engine in 20 minutes, but figure 4-6 hours for a professional installation
    • Diagnostic connector or OBD2 port for connection to scanners and tuning tools
    • Made in the USA.
  • Electrical 4 Terminal Block Strip
    $4.99
    $5.99
    Electrical 4 Terminal Block Strip
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    Connect all the wires in your panel or enclosure in one convenient place. Also known as barrier terminal strips, these blocks have screw terminals—just loosen a screw and wrap a stripped wire end around it (or use a spade terminal) and tighten the screw. All have four mounting holes. Color is black. UL recognized and CSA certified.

    • Phenolic block 
    • Tin-plated brass terminals
    • Ni-plated steel screws
    • Amps Per Circuit: 20A
    • For Wire Size, AWG: 22-12
    • Screw Terminal Size: #6-32
    • Center-to-Center:  0.38"
    • Mount Hole Diameter:  0.17"

    Note: These are terminal strips and are NOT intended for use as ground strips. To be used as a ground strip, all terminals on one side would need to be pigtailed together.

  • Universal Headlight Switch
    $11.99
    Product Rating: 4.77 Stars
    Universal Headlight Switch
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    This universal 3-position headlight switch features Off, Park, and Headlight/tailight. Screw type terminals. 7/16" mounting hole.

    Has a 15 amp per circuit rating at 12 volts.

    Universal Headlight Switch Instructions (PDF)

  • Power Window Kit
    $149.99
    Product Rating: 5.00 Stars
    Power Window Kit
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    • Kit for 2 doors
    • Works for all flat glass windows
    • Straight up and down travel only
    • 6"-24" Glass height
    • Includes: Switches, wiring and crossover kit

    Instructions (PDF)

  • Universal Ignition Switch
    $14.99
    Product Rating: 4.86 Stars
    Universal Ignition Switch
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    This universal, 4 position ignition switch features ACC, OFF, IGN/ACC, and IGN/START. Screw type terminals. 3/4" mounting hole and 2 keys included.

    • Requires 2-3/8" of space behind dash for clearance
    • Fits 3/4" to 7/8" hole
    • Terminals: 4 screw
    • Actuators: coded tumbler lock, 2 keys
    • Sealed terminal insulator: no
    • O-ring seal in stem: no
    • Ground terminal: no
    • Mounting stem: 3/4"-20
    • Case material: diecast zinc
    • Mounting panel thickness: 3/8"
    • Amperage ratings (current ratings at 12V DC)
      •  Accessory: 10A
      • Ign/Run: 10A
      • Start: 5A
  • Grant 10112-00-01 Horn Button Retainer
    Grant 10112-00-01 Horn Button Retainer
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                This retainer is designed to affix a "non-functional" horn button onto the steering wheel as this item is not insulated. This should only be used wtih an aftermarket steering column that has an external or remote horn button seperate of the center of the wheel.
            
  • Fuse Block Eight Push-in Fuses
    Fuse Block Eight Push-in Fuses
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    Allows easy installation of extra fuses. Accepts push-in style ATC and ATO fuses.

    • Black thermoplastic construction
    • Recessed contacts for extra safety
    • 25 amps max per circuit @ 12V to 24V DC
    • 150 amps max total for the block @ 12V DC
  • Auto Meter 9118 Tach Adapter
    $92.99
    Auto Meter 9118 Tach Adapter
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    One of the problems with magnetos is the limited choices of tachs that work with them. This little box allows you to run almost any tachometer with your magneto. Requires 12 volts.

    Magneto Tach Adapter Installation Instructions (pdf)

  • Sequential LED Tail Light Kit
    Sequential LED Tail Light Kit
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    • Convert any three LED tail lights to sequential operation
    • Also upgrades Speedway Motors brand 1969 Camaro and 1967-'69 Mustang LED tail lights to three sequence
    • Three segment sequence with "all-at-once" brake light
    • Kit includes two modules, wires, connectors and instructions

    Sequential LED Tail Light Wiring Instructions (PDF)

  • Fuse Block, Six Push-in Fuses
    Fuse Block, Six Push-in Fuses
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    Allows easy installation of extra fuses. Accepts push-in style ATC and ATO fuses.

    • Black thermoplastic construction
    • Recessed contacts for extra safety
    • 25 amps max per circuit @ 12V to 24V DC
    • 150 amps max total for the block @ 12V DC
  • Stewart Warner 279-A Sender for Wings Oil Pressure Gauge
    Stewart Warner 279-A Sender for Wings Oil Pressure Gauge
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    For use with single gauge, standard pipe thread 1/8". Includes adapter for 1/4".

    • 80 psi pressure
    • 240 ohms resistance
  • Warmseats Seat Heater
    $89.99
    Warmseats Seat Heater
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    Perfect for a roadster or any car without a heater.  These state of the art seat heaters are OEM applications.  Easy to install heaters fit between the foam and upholstery of the seats bottom and back.  The pre-wired heater has a Hi/Lo/Off switch and only draws 3-1/2 amps.  You will need one heater for each vehicle occupant.  12 volt.

    910-70030 Instructions (pdf)

  • Heavy Duty Turn Signal Switch
    Heavy Duty Turn Signal Switch
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    For early autos not equipped with right and left turn signals. Chrome plated finish. Switch works with 6 or 12 volt systems. Includes wiring diagram. Clamps to any steering column with included stainless hose clamp. Switch has four-way flashers and does not self cancel.

    You will need to purchase a three-prong flasher to use with this switch (part number 910-64046). For LED light applications, you will also need a LED dummy load resistor (part number 910-03030).

    910-62860 Instructions (PDF)

  • Classic Instruments SN57F Ford Oil Pressure Sender Bushing Kit Adaptor
    Classic Instruments SN57F Ford Oil Pressure Sender Bushing Kit Adaptor
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                Classic Instruments' brass angled-bushing kits allow for easy installation on most Ford engines. 

    The Oil Pressure Sender will not clear either the back of the intake manifold or the distributor body on many installations unless the Bushing Kit is used.

    • Bushing kit to install oil pressure sender
    • Ford applications
  • Budget 40-Amp Relay Kit
    $9.99
    Product Rating: 4.67 Stars
    Budget 40-Amp Relay Kit
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    Use this handy 40 amp relay to wire up your 12 volt horn, electric fuel pump, electric fan with sensor, shaved door handles, or whatever! Contains relay, plug, wire, and instructions.

    The wiring would be as follows (included in kit instructions):

    • Red Wire #30 Prong = main 12V power source
    • Black Wire #85 Prong = Electric fan sensor OR low (oil) pressure switch OR grounding switch
    • Blue Wire #86 Prong = 12V toggle switch OR ignition switch "ACC" terminal
    • Yellow Wire #87 Prong = to fan or fuel pump + lead
    • White Wire or Center Prong = not normally used 

    Fan or Fuel Pump Relay Installation Instructions (PDF)

  • Yellow Vinyl Butt Connectors, 12-10 Gauge
    Yellow Vinyl Butt Connectors, 12-10 Gauge
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    Secure loose/spliced wire ends to each other with these vinyl butt connectors.

    • Comes in a package of 100
  • Two Post Battery Disconnect Switch
    Two Post Battery Disconnect Switch
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                Remote battery disconnect switch for safety and theft protection. A battery kill switch is required for use with alternators by the NHRA. Battery shut off switch can be remote mounted or where specified for saftey and  convenience.
    • 180 amp continuous, 1000 amp instantaneous
    • Die cast lever
    • Fits panel through 3/16" thick

    910-64500 Instructions (PDF)

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