Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Painless Wiring At Speedway Motors

Painless Performance has been designing and manufacturing wiring harnesses for over 20 years. They understand that with improved technology comes the need for improved wiring harnesses. That's why the team at Painless is constantly developing advancements to better their products, like the improvements to the Painless Chassis Harnesses. Now featuring more circuits for the modern builder. The extra circuits ensure that there is proper wiring and circuit controls in place to handle the increased electronic loads of today’s street rods and muscle cars. The best part? They made these upgrades without changing the price! Just another reason to Make it Easy, Make it Simple, Make it Painless..

Featured Products
  • Painless 70941 PowerBraid Tool Assistance Kit
    New
    Painless 70941 PowerBraid Tool Assistance Kit
    (Part #91070941)
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    This is an easy and simple way to enclose any wiring in PowerBraid or ClassicBraid. This product is ideal for the professional installer. Made in the USA!

    This kit includes:

    • (1) - 1/4" tool
    • (1) - 1/2" tool
    • (1) - 3/4" tool
  • Painless 30111 Thermostatic Switch, 185 Degrees On, 175 Degrees Off
    Painless 30111 Thermostatic Switch, 185 Degrees On, 175 Degrees Off
    (Part #91030111)
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    This thermostat from Painless Performance allows your electric fan to turn off and on at your desired temperature you want. Recommended for all electric fan installations, these thermostat switches are sure to keep your engine cool and running.

    • 185 Degrees ON, 175 Degrees OFF
    • Thermostatic switch and 1/2"NPT to 3/8"NPT adapter only
    • Sold Individually
  • Painless Wiring 80174 Pressure Brake Switch with Pigtail, 1/8 NPT
    Painless Wiring 80174 Pressure Brake Switch with Pigtail, 1/8 NPT
    (Part #91031307)
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    Pressure brake switch has 1/8" male NPT threads. For inline installation of this switch, use one of the corresponding tee fittings. This is a standard normally open switch that closes when actuated, at 60-100 psi.

  • Painless Wiring 60118 TBI Throttle Body Adapter Plates
    Painless Wiring 60118 TBI Throttle Body Adapter Plates
    (Part #91060118)
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    This adapter will mount a 1986-1995 GM throttle body injector (4.3 V6 or 5.7 V8) to a 4 BBL intake manifold. It works best on an aftermarket open-plenum intake. This TBI adapter could be used on a modifed Q-jet intake, but some material would have to be removed from the plenum area.

    This adapter is 3/4" thick.

    Allen screws are included for the adapter and the throttle body mounting, as well as a gasket between the adapter and the intake. 

  • Painless 70940 PowerBraid and ClassicBraid Tool for  Enclosing Wire, 1 Inch
    Painless 70940 PowerBraid and ClassicBraid Tool for Enclosing Wire, 1 Inch
    (Part #91070940)
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    This tool from Painless Performance allows you to enclose wire into your 1" PowerBraid or ClassicBraid sleeve. This is perfect for the professional installer.

    • PowerBraid and ClassicBraid
    • 1 Inch
    • Made in the USA
  • Painless Wiring 60109 700R4 Transmission Torque Converter Lock-Up Kit
    Painless Wiring 60109 700R4 Transmission Torque Converter Lock-Up Kit
    (Part #91064038)
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                Now there's an inexpensive way to automatically lock up the torque converter in 4th gear without the need for a computer. No need to worry about the speed sensor either! This 700R-4 transmission torque converter lock-up kit lets you run your carbureted engine with an economical overdrive transmission. 

    This 700R4 transmission torque convertor kit includes new 4th gear pressure switch, new converter lock-up solenoid, new vacuum control switch, new brake control switch, color coded wiring harness, factory connectors, transmission pan gasket and easy-to-follow instructions. For 700R-4 transmission application

    NOTE: Minor transmission disassembly is required.

    700R4 Transmission Lock-Up Harness Installation Instructions(PDF)

  • Painless 70910 1/8 Inch PowerBraid Split Braided Sleeving, 20 Feet
    Painless 70910 1/8 Inch PowerBraid Split Braided Sleeving, 20 Feet
    (Part #91070910)
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    This semi-rigid 1/8" PowerBraid from Painless Performance is more flexible than convoluted tubing while keeping its shape and rigidity. It has a 25% overlap that allows wire protection without the need for any additional fasteners.

    • Continuous Temperature Rating -94 Degrees to 257 Degrees F
    • Melting Point of 482 Degrees F
    • Made in the USA
    • 20' long
  • Painless Wiring 10308 18 Circuit Modular Wiring Harness
    Painless Wiring 10308 18 Circuit Modular Wiring Harness
    (Part #91010308)
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    Designed for those with a T-Bucket or Roadster with minimized needs. This compact, streamlined, simple to install harness has all the basic circuitry needs: headlights, tail lights, brake lights, turn signals, hazards, horn, gauges, wipers, radio, electric fan, electric choke and one accessory circuit. Each wire is color-coded and printed the entire length for ease of installation. As an added plus, the fuse block is modular so if you decide at some point to add additional accessories to your bucket, you can easily snap another four circuits into place. Also included are connectors to GM/Ididit/Flaming River Columns for ignition switch and turn signals and a heavy-duty lead for a high-output alternator.

    This wiring harness is just a nice simple basic harness that will work well in a variety of vehicles. It’s for “minimalist” vehicles with no power windows, no power door locks, no power seats... just the basics. Works well in any of the Speedway kit cars.

    18 Circuit Modular T-Bucket Wiring Instructions (PDF)

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  • Painless Wiring 50302 6-Switch Fused Panel with Wiring and Hardware
    Painless Wiring 50302 6-Switch Fused Panel with Wiring and Hardware
    (Part #91050302)
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    This heavy duty lightweight switch panel from Painless Performance is designed to mount to a roll bar using standard metal hose clamps. Lighted rocker switches are color coded for quick reference.  All of the circuits are individually fused and are easily accessible for quick testing and replacement. This kit comes complete with 18 ft. of TXL wire, using fully insulated terminals. Made in the USA!

    Installation Instructions (PDF) 

    The Kit Controls:

    • Start
    • Ignition
    • Fuel pump
    • Electric fan/water pump (Switch up position - fan on only / Switch middle position - all off / Switch down position - fan & water pump on)
    • Two accessories

     

     

  • Painless Wiring 70922 PowerBraid Installation Conduit Kit, Bronco Wire Harness
    Painless Wiring 70922 PowerBraid Installation Conduit Kit, Bronco Wire Harness
    (Part #91070922)
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                Please view the product's page for more information
            
  • Painless 20102 1969-1974 GM Muscle Car 25 Circuit Wiring Harness
    Painless 20102 1969-1974 GM Muscle Car 25 Circuit Wiring Harness
    (Part #91020102)
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    One thing to never forget - the wiring in your muscle car is forty years old and updating to modern and safe components is easy. These Painless Wiring harnesses feature many pre-wired connections and are color coded to make installation a snap. Instructions included.

    This 25 circuit harness was designed to fit the following 1969-1974 GM muscle cars: Camaro/Firebird, Nova, El Camino, Monte Carlo, Apollo, Chevelle, Cutlass, Skylark, Tempest, and GTO. This harness features a pre-wired factory style bulkhead connector that plugs directly into the back of the fuse block in the factory location. Factory original quick connect terminals are included for the in dash printed circuit board.  Pre-terminated plugs for a column mounted ignition switch, dimmer switch, headlights & headlight switch, blower motor, wiper motor, and turn signal switch. Included with this harness you'll also find a detailed manual and each wire is custom printed with the circuit identification as well as using GM color codes for easy installation.

    1969-1974 GM Muscle Car Wiring Instructions (PDF)

  • Painless Wiring 10104 21 Circuit GM Pickup Chassis Wiring Harness
    Painless Wiring 10104 21 Circuit GM Pickup Chassis Wiring Harness
    (Part #91010104)
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    This customizable 21 circuit - 12 fuse w/ horn relay and Maxi Fuse pickup chassis wiring harness is made from Painless Performance. You'll find that the ample wire lengths make this kit especially suited for trucks with long beds and extended cabs.  These Painless wiring harnesses feature many pre-wired connections and are color coded to make installation a snap. Included with this harness are the following parts: a GM engineered fuse block & Painless mounting bracket, GM turn signal connectors, pre-wire plugs for the headlights, and a dimmer switch. Application intended for non-fuel injected engine and a non-electronic transmission.

    Includes Circuits for:

    • A/C & Heat
    • Accessory / Cigarette Lighter
    • Backup Lights
    • Brake Lights
    • Charging
    • Dome Light
    • Electric Choke
    • Emergency Flashers
    • Fan Relay Activation Power
    • Fused Power Source
    • Headlights
    • Horn (Relay)
    • Ignition Coil
    • Instrument Panel Lighting and Gauges ( Included wires for: fuel gauge, oil gauge, tachometer, temperature gauge, and voltmeter)
    • Park Lights
    • Radio/Clock (Constant and Switched) 
    • Starting
    • Tail Lights
    • Third Brake Light
    • Turn Signals
    • Wipers

    Connectors included:

    • GM Steering Column Turn Switch
    • Two Headlight Pigtails
    • 10SI & 12 SI Alternator
    • Dimmer Switch

  • Painless Wiring 20120 1964-1966 Mustang 22 Circuit Wiring Harness
    Painless Wiring 20120 1964-1966 Mustang 22 Circuit Wiring Harness
    (Part #91020120)
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    One thing to never forget - the wiring in your muscle car is forty years old and updating to modern and safe components is easy. Owners and restorers of 1964 to 1966 first generation Mustangs can take comfort in the fact that there is now an electrical system upgrade from Painless to completely rewire this classic car. These Painless wiring harnesses feature many pre-wired connections and are color coded to make installation a snap.

    This 22 circuit direct fit 1965-1966 Mustang harness has many of the factory connectors already installed on the harness out of the box.  This harness uses our unique covered micro-fuse block.  Also featured is an auxiliary circuit with 20 amp relay for accessories such as fog lights, or an electric fuel pump. Each wire is custom printed with the circuit identification as well as using Ford color codes for easy installation.  NOTE: THIS WILL NOT FIT 1964 1/2 MUSTANGS

    1964-1966 Mustang Wiring Instructions (PDF)

    Note: Some firewall modifications required.

  • Painless Wiring 50305 6-Switch Rocker Circuit Breaker Panel
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    Painless Wiring 50305 6-Switch Rocker Circuit Breaker Panel
    (Part #91050305)
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    Check out this 6-switch Rocker circuit breaker panel from Painless Performance. It features color coded lighted rocker switches, 18 feet of TXL wire, vibration resistant terminals and a black finish for reduced glare.

    • Features circuit breakers in place of standard fuses
    • Panel controls: Start, ignition, fuel pump, electric fan/water pump and 2 accessories
    • Made in the USA

    Assembly Instructions (PDF)

  • Painless 70956 1/8 Inch ClassicBraid Wire Sleeving, 20 Feet
    Painless 70956 1/8 Inch ClassicBraid Wire Sleeving, 20 Feet
    (Part #91070956)
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    This ClassicBraid has a smooth texture and appearance that will transform your engine bay and give you that factory installed look. Its tight woven construction gives you an excellent blockade against mud and dirt while keeping adequate drainage for optimum wiring protection. 

    • Made in the USA
    • Continuous Temperature Rating -94° to 257°F
    • Melting Point 482°F
    • Resistant to Automotive Chemicals & Fluids
    • Great For Auto, Marine, RV, Aircraft, Power Sports, & More
    • 20' long
  • Painless Wiring 70923 PowerBraid Kit, 1970-81 2nd Generation Camaro
    Painless Wiring 70923 PowerBraid Kit, 1970-81 2nd Generation Camaro
    (Part #91070923)
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                Please view the product's page for more information
            
  • Painless 10123 1966-1976 Ford Muscle Car 21 Circuit Wiring Harness
    Painless 10123 1966-1976 Ford Muscle Car 21 Circuit Wiring Harness
    (Part #91010123)
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    One thing to never forget - the wiring in your muscle car is forty years old and updating to modern and safe components is easy. These Painless wiring harnesses feature many pre-wired connections and are color coded to make installation a snap. This customizable 21 circuit harness can be used in almost any application where you want Ford color coded wires. This harness uses our unique covered micro-fuse block.  Also featured is an auxiliary circuit with 20 amp relay for accessories such as fog lights, or an electric fuel pump. Each wire is custom printed with the circuit identification for easy installation.

    Designed for 1966-1976 Ford muscle cars including Galaxie, LTD, Falcon, Fairlane, Mustang, Maverick, Torino, and Ranchero.

    NOTE: Will not work with Thunderbirds. 

    1966-1976 Ford Muscle Car Wiring Instructions (PDF)

  • Painless Wiring 70402 Two Wire Weatherpack Connectors
    Painless Wiring 70402 Two Wire Weatherpack Connectors
    (Part #91012212)
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    A real water-tight connection. Each number consists of one male and one female component. Accepts 14 - 16 gauge wire.

  • Painless Wiring 60218 1999-2005 GM Vortec Engine Harness, Extended
    Painless Wiring 60218 1999-2005 GM Vortec Engine Harness, Extended
    (Part #91060218)
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                Please view the product's page for more information
            
  • Painless 70903 3/4 Inch PowerBraid Split Braided Sleeving, 6 Foot
    Painless 70903 3/4 Inch PowerBraid Split Braided Sleeving, 6 Foot
    (Part #91070903)
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    This semi-rigid 3/4" PowerBraid from Painless Performance is very flexible. It has a 25% overlap that allows for wire protection without the need for any additional fasteners.

    • Continuous Temperature Rating -94 Degrees to 257 Degrees F
    • Melting Point for 482 Degrees F
    • Made in the USA
    • Cut and Abrasion Resistant
    • 6 foot long
  • Painless Wiring 60103 1990-92 GM TPI Speed Density Engine Harness
    Painless Wiring 60103 1990-92 GM TPI Speed Density Engine Harness
    (Part #91064037)
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    Take advantage of GM's electronic engine management system with this Painless Wiring Harness. Complete stand alone harness allows you to install late model GM fuel injected engine and correct computer into almost any chassis. Harness includes all needed 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 or behind the dash or 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
    • Wired for 2004R or 700R4 transmission and EGR solenoid
    • GM color code
    • Closed loop design

    1990-1992 GM TPI Wiring Instructions (PDF)

  • Painless 30103 Fan Relay w/ Thermostatic Switch, 185/175 Degree
    Painless 30103 Fan Relay w/ Thermostatic Switch, 185/175 Degree
    (Part #91030103)
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    This Fan Relay from Painless Performance comes with a Thermostatic switch that screws into the engine block or intake manifold. This offers good protection for your vehicles electric fan and the vehicles wiring harness.

    Kit includes:

    • 30 Amp Circuit Breaker
    • SPST 40 Amp Relay
    • Thermostatic switch 185°F On/175°F Off (thread size: 3/8"-18NPT)
    • 1/2"NPT to 3/8"NPT adapter
    • Relay base with harness
    • Crimp-on terminals
    • Mounting hardware

     

  • Painless Wiring 10118 21 Circuit Wire Harness, 1967-77 Ford F-Series Pickup
    Painless Wiring 10118 21 Circuit Wire Harness, 1967-77 Ford F-Series Pickup
    (Part #91010118)
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    This 21 circuit wiring harness from Painless Performance is a direct fit for your 1967-1977 Ford F-Series truck. This harness entails a unique covered micro-fuse block with a 20 amp auxiliary relay circuit for accessories such as fog lights, or fuel pump. Each wire is color coated for an easy installation. This harness also includes brand new headlight, ignition, dimmer, wiper, and brake switches. Made in the USA!

    Installation Instructions (PDF) 

    Harness includes circuits for:

    • A/C & Heat
    • Accessory (Relayed)
    • Accessory / Cigarette Lighter
    • Backup Lights
    • Brake Lights
    • Cargo Lamp
    • Charging
    • Dome Light
    • Electric Choke
    • Emergency Flashers
    • Fused Power Source
    • Headlights
    • Horn (Relay)
    • Ignition Coil
    • Instrument Panel Lighting and Gauges (Ammeter, Brake Warning Light, 4-Wheel Drive Light, Fuel Gauge, Oil Gauge, Tachometer, and Temp. Gauge)
    • Park Lights
    • Radio/Clock (Constant and Switched) 
    • Starting
    • Tail Lights and License Plate Light
    • Turn Signals
    • Wipers and Washer Pump

     

     

  • Painless Wiring 60109 700R4 Transmission Torque Converter Lock-Up Kit
    Painless Wiring 60109 700R4 Transmission Torque Converter Lock-Up Kit
    (Part #91064038)
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                Now there's an inexpensive way to automatically lock up the torque converter in 4th gear without the need for a computer. No need to worry about the speed sensor either! This 700R-4 transmission torque converter lock-up kit lets you run your carbureted engine with an economical overdrive transmission. 

    This 700R4 transmission torque convertor kit includes new 4th gear pressure switch, new converter lock-up solenoid, new vacuum control switch, new brake control switch, color coded wiring harness, factory connectors, transmission pan gasket and easy-to-follow instructions. For 700R-4 transmission application

    NOTE: Minor transmission disassembly is required.

    700R4 Transmission Lock-Up Harness Installation Instructions(PDF)

  • Painless Wiring 60502 1992-1997 GM LT1 Engine Harness
    Painless Wiring 60502 1992-1997 GM LT1 Engine Harness
    (Part #91060502)
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                Take advantage of GM's electronic engine management system with this Painless Wiring Harness. 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 needed for fuel injection and transmission operation: ECM, Ignition Module, IAT, CTS, Coil, Left & Right O2, EGR, MAP, IAC, Knock, Air Pump Relay, MAF, Fuel Pump Relay, Canister Purge Solenoid, VSS and 4L60E Transmission. 

    Harness includes its own fuse block with ignition relays. 4 feet of harness between ECM connections and main engine breakout gives ample room for custom installation and mounting of ECM behind dash, in the kick panel or 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

    1992-1997 GM LT1 Wiring Instructions (PDF)

  • Painless Wiring 60508 1999-2002 GM LS1 Engine Harness
    Painless Wiring 60508 1999-2002 GM LS1 Engine Harness
    (Part #91060508)
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                Take advantage of GM's electronic engine management system with this Painless Wiring Harness. Complete stand alone harness allows you to install late model GM fuel injected engine and correct computer into almost any chassis. 

    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
    • Complete information manual

    1999-2002 GM LS1 Wiring Instructions (PDF)

  • Painless Wiring 40007 Three Wire Quick Connect Terminal
    Painless Wiring 40007 Three Wire Quick Connect Terminal
    (Part #91012201)
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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.

  • Painless Wiring 60511 5.0 Ford Fuel Injection System Engine Harness
    Painless Wiring 60511 5.0 Ford Fuel Injection System Engine Harness
    (Part #91060511)
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    If you want to put a Ford in a Ford, this is the harness for you. It allows you to install a 1986-1995 5.0 Ford fuel injected engine and computer in just about anything. Harness comes complete with factory connectors, terminals, color coded wire and plugs directly into the factory ECM. It even has enough wire to hide the computer in the trunk.

    Harness does not include any emissions or automatic transmission related connections.

    1986-1993 Ford 5.0L Wiring Instructions (PDF)

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