Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Willys Carbs At Speedway Motors

Established in 1985, Willy builds carburetors for asphalt and dirt circle track, drag racing, marine, truck pulling, and pro street applications. Willy Carburetors are built for both gasoline and alcohol burning engines. Willys? team of skilled technicians work to build the best possible carburetors for the customers? specific requirements.

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  • Willys Carbs WCD251 2-Barrel Throttle Stop, Return Spring Bracket
    Willys Carbs WCD251 2-Barrel Throttle Stop, Return Spring Bracket
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    • Fits 4412 style 2 bbl. carburetors
    • Throttle stop and return spring bracket all in one
  • Willys Carbs WCD64002 HP Series Gas 4 Barrel Carburetor, 750 Base
    Willys Carbs WCD64002 HP Series Gas 4 Barrel Carburetor, 750 Base
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                The Willy's four barrel carbs feature Holley 750 CFM main bodies, special radius air entry, externally adjustable metering blocks, screw-in air bleeds, black powder coating and Teflon throttle shaft bushings. 355-406 ci.
            
  • Willy's Carbs WCD62501 HP Series 604 Crate Engine Alcohol Carburetor
    Willy's Carbs WCD62501 HP Series 604 Crate Engine Alcohol Carburetor
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                These Willy"s carburetors work great with our 604 crate engines.  They are designed for use with alcohol fuel only.
    • Holley HP mainbody
    • Gloss black powder coating
    • 1-11/16" baseplate w/stainless steel butterflies and Teflon bushed throttle shafts
    • 1.250″ venturi
    • Externally adjustable metering blocks
  • Willys Carbs WCD50127-E85 GM 604 Crate Motor 4 Barrel Carburetor, E85
    Willys Carbs WCD50127-E85 GM 604 Crate Motor 4 Barrel Carburetor, E85
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    If you are running the GM 604 crate motor, you need one of these Willy's four barrel carburetors. They are specifically built and dyno tuned to give you maximum power from your crate engine.

    • Billet metering blocks
    • Based on a 750HP body, flows over 900 CFM
    • Down leg boosters
    • Choke horn/tower removed for increased flow
  • Willys Carbs WCD44120HA 2-Barrel Racing Carburetor, High Altitude
    Willys Carbs WCD44120HA 2-Barrel Racing Carburetor, High Altitude
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                Willy's two barrel carbs make much more power than stock, but retain the stock appearance and will pass tech. 
            
  • Willys Carbs WCD44120 500 CFM 2-Barrel Racing Carburetor
    Willys Carbs WCD44120 500 CFM 2-Barrel Racing Carburetor
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                Willy's two barrel carbs make much more power than stock, but retain the stock appearance and will pass tech. 

    This 500 CFM 2 barrel carburetor has a 1-3/8" venturi and 1-11/16" throttle plate. It uses the standard Holley metering block. These 2 barrel carbs will pass tech gauges and produces great torque and horsepower. They are popular on NASCAR late models and are IMCA & WISSOTA Legal. This two barrel carburetor has "LIST 4412-2" stamped on it, and looks stock.

    IMCA approved.
  • Willys Carbs WCD64002HA Hi-Altitude HP Series 4 Barrel Gas Carburetor
    Willys Carbs WCD64002HA Hi-Altitude HP Series 4 Barrel Gas Carburetor
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    Willy's four barrel carbs feature Holley 750 cfm main bodies with stainless steel butterflies, special radius air entry, externally adjustable metering blocks, screw-in air bleeds, black powder coat finish, and Teflon throttle shaft bushings. Offers instant throttle response and more torque. This 4 barrel carb works at a fuel pressure of 7 to 8 psi at wide open throttle under load.

  • Willys Carbs WCD BC 12 Birdcage Indexing Tool, 1/2 Inch
    Willys Carbs WCD BC 12 Birdcage Indexing Tool, 1/2 Inch
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    • Birdcage indexing tool greatly simplifies this tedious process
    • Slip over birdcage bolts and attach angle finder
    • Gives an exact angle of the birdcage
    • It’s an invaluable tool for both racers and chassis builders
    • Angle finder sold separate
    • Choose 1/2", 5/8", or 3/4" based on birdcage bolt size
  • Willys Carbs WCD BC 58 Birdcage Indexing Tool, 5/8 Inch
    Willys Carbs WCD BC 58 Birdcage Indexing Tool, 5/8 Inch
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    • Birdcage indexing tool greatly simplifies this tedious process
    • Slip over birdcage bolts and attach angle finder
    • Gives an exact angle of the birdcage
    • It’s an invaluable tool for both racers and chassis builders
    • Angle finder sold separate
    • Choose 1/2", 5/8", or 3/4" based on birdcage bolt size
  • Willys Carbs WCD892 Gasoline Fuel Pressure Regulator
    Willys Carbs WCD892 Gasoline Fuel Pressure Regulator
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    Willy's fuel pressure regulator features a special diaphragm that uses engine vacuum to automatically regulate fuel pressure. At idle or deceleration, when manifold vacuum is high, the fuel regulator opens and drops fuel pressure for clean restarts and keeps carburetor from flooding or blubbering in the corner. As the throttle is opened, manifold vacuum drops which closes the fuel pump regulator and raises pressure for proper straightaway fuel mixture.

    This bypass fuel regulator is designed to be used with a piston-style mechanical fuel pump only.  Adjsutable fuel regulator has a -8 AN O-ring female inlet port and a -8 AN male return fitting. Requires a fuel return line and vacuum port (base plate or intake manifold) for installation.

    800-892 Instructions (PDF)

  • Willys Carbs WCD891 Alcohol Fuel Pressure Regulator
    Willys Carbs WCD891 Alcohol Fuel Pressure Regulator
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    Willy's alcohol fuel regulator features a special diaphragm that uses engine vacuum to automatically regulate fuel pressure. At idle or deceleration, when manifold vacuum is high, the fuel pressure regulator opens and drops fuel pressure for clean restarts and keeps carburetor from flooding or blubbering in the corner. As the throttle is opened, manifold vacuum drops which closes the fuel pump regulator and raises pressure for proper straightaway fuel mixture.

    This bypass fuel regulator is designed to be used with a piston-style mechanical fuel pump only.  Alcohol regulator has a -8 AN O-ring female inlet port and a -8 AN male return fitting. Requires a fuel return line and vacuum port (base plate or intake manifold) for installation.

    800-891 Instructions (PDF)

  • Willys Carbs WCD250 4-Barrel Throttle Stop, Return Spring Bracket
    Willys Carbs WCD250 4-Barrel Throttle Stop, Return Spring Bracket
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    • Fits 4150 and 4160 style 4 bbl. carburetors
    • Throttle stop and return spring bracket all in one
  • Willys Carbs WCD50127 GM 604 Crate Motor 4 Barrel Carb, Gasoline
    Willys Carbs WCD50127 GM 604 Crate Motor 4 Barrel Carb, Gasoline
    x
                

    If you are running the GM 604 crate motor, you need one of these Willy's four barrel carburetors. They are specifically built and dyno tuned to give you maximum power from your crate engine. 

    • Billet metering blocks
    • Based on a 750HP body, flows over 900 CFM
    • Down leg boosters
    • Choke horn/tower removed for increased flow
  • Willys Carbs WCD80541-1 GM 602 Crate Motor 4 Barrel Gasoline Carb
    Willys Carbs WCD80541-1 GM 602 Crate Motor 4 Barrel Gasoline Carb
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    If you are running the GM 602 crate motor, you need one of these Willy's four barrel carburetors. They are specifically built and dyno tuned to give you maximum power from your crate engine. 

    • Standard metering blocks
    • Based on a 650 body, flows between 800-850 CFM
    • Straight leg boosters
    • Same baseplate as a 750 but has 1/8” smaller venturies
    • Choke horn/tower removed for increased flow
  • Willys Carbs WCD BC 34 Birdcage Indexing Tool, 3/4 Inch
    Willys Carbs WCD BC 34 Birdcage Indexing Tool, 3/4 Inch
    x
                
    • Birdcage indexing tool greatly simplifies this tedious process
    • Slip over birdcage bolts and attach angle finder
    • Gives an exact angle of the birdcage
    • It’s an invaluable tool for both racers and chassis builders
    • Angle finder sold separate
    • Choose 1/2", 5/8", or 3/4" based on birdcage bolt size
  • Willys Carbs WCD80541-E85 GM 602 Crate Motor 4 Barrel Carb, E85
    Willys Carbs WCD80541-E85 GM 602 Crate Motor 4 Barrel Carb, E85
    x
                

    If you are running the GM 602 crate motor, you need one of these Willy's four barrel carburetors. They are specifically built and dyno tuned to give you maximum power from your crate engine. 

    • Standard metering blocks
    • Based on a 650 body, flows between 800-850 CFM
    • Straight leg boosters
    • Same baseplate as a 750 but has 1/8” smaller venturies
    • Choke horn/tower removed for increased flow
  • Willys Carbs WCD64001HA Hi Altitude HP Series 4 Barrel Alky Carburetor
    Willys Carbs WCD64001HA Hi Altitude HP Series 4 Barrel Alky Carburetor
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    Willy's four barrel carbs feature Holley 750 cfm main bodies with stainless steel butterflies, special radius air entry, externally adjustable metering blocks, screw-in air bleeds, black powder coat finish, and Teflon throttle shaft bushings. Offers instant throttle response and more torque. This 4 barrel carb works at a fuel pressure of 9 to 10 psi at wide open throttle under load.

  • Willys Carbs WCD64001 HP Series Alcohol 4 Barrel Carburetor, 750 Base
    Willys Carbs WCD64001 HP Series Alcohol 4 Barrel Carburetor, 750 Base
    x
                The Willy's four barrel carb featuress Holley 750 CFM main bodies, special radius air entry, externally adjustable metering blocks, screw-in air bleeds, black powder coating and Teflon throttle shaft bushings. 355-406 ci. This 4 barrel carb works at a fuel Pressure of 9 to 10 psi at wide open throttle under load.
            
  • Willys Carbs WCD80787-2 Racing 2 Barrel Carburetor, 350 CFM
    Willys Carbs WCD80787-2 Racing 2 Barrel Carburetor, 350 CFM
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                Willy's 2 barrel carbs make much more power than stock, but retain the stock appearance and will pass tech. This 350 CFM Stage II two barrel carburetor is approved for IMCA classes that allow the 350 CFM Holley 2 barrel carbs.

    This Willy's 350 CFM 2 barrel Carburetor has a stock appearance with a custom calibrated metering system. The Stage 2 is 18 horse power better than the Holley HP. These are popular on NASCAR late models and are IMCA legal.

    IMCA approved.
  • Willys Carbs WCD3003 Carburetor Float Adjusting Tool
    Willys Carbs WCD3003 Carburetor Float Adjusting Tool
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                This 2-in-1 float adjusting tool has both a 5/8" socket and straight blade screwdriver to make float adjustment a snap.