Top 10 Spread Bore Carburetor – Automotive Replacement Carburetor Spacers & Adapters

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1. Edelbrock

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Multi, Edelbrock 2696 Four-Hole Square-Bore to Spread-Bore Carburetor Adapter, One Size

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Edelbrock #ad - Adapter style is individual venturi ports. Mounts edelbrock square-bore carburetors to stock Quadra jet and Thermo-Quad manifolds. 850 Thickness of adapter is 0 Fit type: Vehicle Specific. Adapter is made of aluminum with a natural finish. Hardware and gaskets are included for easy installation.
BrandEdelbrock #ad
ManufacturerEdelbrock #ad
Height9.4 Inches
Length10.6 Inches
Weight1.83 Pounds
Width8.3 Inches
Part Number2696
Model2696
Warranty90 Day Manufacturer

2. Pindex

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Carburetor Gaskets 1932 4-Barrel to 4-Barrel Carburetor Gasket Kit

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Pindex #ad - Adapts square flange carburetor to 4-barrel intake manifold. Measures 3/4' nominal height of the adapter only, w/o gaskets. This carburetor gaskets quick and easy installation replacement factory old part. Any 4bbl carb. To any 4bbl manifold except Holley 4500 and original manifolds with exposed exhaust crossover tube. This easy to install adapter is made of diecast aluminum. Included in this kit are the gaskets, studs, nuts and washers.
BrandPindex #ad
ManufacturerPindex #ad
Part Number1932 carburetor gasket kit
Model1932 carburetor gasket kit

3. Edelbrock

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Edelbrock 1406 Performer 600 CFM Square Bore 4-Barrel Air Valve Secondary Electric Choke Carburetor

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Edelbrock #ad - Backed by edelbrock's exclusive 90 day. Designed and calibrated for optimum marine performance. Electric choke with 4-barrel square bore carburetor flange. Single feed fuel inlet with air valve secondary type. Shiny silver finish and calibrated for gasoline.
BrandEdelbrock #ad
ManufacturerEdelbrock #ad
Height0 Inches
Length0 Inches
Weight9.25 Pounds
Width0 Inches
Part Number1406
Model1406
Warranty90 Day

4. Southwest Speed

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NEW HOLLEY STREET DEMON CARBURETOR,SHINY,625 CFM,4 BARREL,ELECTRIC CHOKE,GASOLINE ONLY,VACUUM SECONDARIES

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Southwest Speed #ad - Material: aluminum | metering rod size: 60/52 | model: street demon | primary main jet: 80 | primary pump nozzle size: 31 | product Type: Carburetor | Secondaries: Vacuum | Secondary Main Jet: 80 | Step up Spring: Green | Supercharged Application: No | Vacuum Ports: 1 timed spark port, 2 full, and 1 PCV port.

Its optimized calibration and dual mounting pattern make it run-ready for a large variety of engines and vehicles! Note: this model of carburetor has the square bore flange bolt pattern. If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor. Wicked power! the all new street demon redefines the street carburetor with clean looks and ease of use! The Street Demon offers enthusiasts a straight forward carburetor designed to deliver a stable idle, amazingly crisp throttle response and smooth performance.

Similar to the Mr. Gasket #1932. Specs: barrels: 4 | booster: triple stack | brand: demon | cfm: 625 | choke: Electric | Emission Code: 3 | Finish: Shiny | Fuel: Gasoline | Fuel Inlet: Single. It can replace holley, carter afb, edelbrock, and Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern. Brand new holley 625 cfm street demon carburetor, with Electric Choke & Vacuum Secondaries Part #1900 .
BrandSouthwest Speed #ad
ManufacturerHOLLEY PERFORMANCE PRODUCTS #ad
Height0 Inches
Length0 Inches
Weight0 Pounds
Width0 Inches
Part NumberHOL-1900

5. Spectre Performance

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Spectre Performance 5765 Universal 4-Barrel Carburetor Adapter

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Spectre Performance #ad - Precision die cast aluminum outer plate. Adapts holley, edelbrock, Carter AFB 4 barrel carburetors to a Quadrajet intake manifold. Heat insulating phenolic center. Gaskets and hardware included.
BrandSpectre Performance #ad
ManufacturerSpectre #ad
Height0 Inches
Length0 Inches
Weight1.95 Pounds
Width0 Inches
Part Number5765
ModelSPE-5765
Warranty3 Months

6. AED Performance

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AED Performance 4165 Spread Bore Carburetor Rebuild Kit

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AED Performance #ad - Power valves. Reusable gaskets. New high Flow needle and seats. New needle and seat nuts and screws. Nylon bowl screw gaskets.
BrandAED Performance #ad
Height1.5 Inches
Length9 Inches
Weight0.5 Pounds
Width6 Inches
Part NumberAED 4165

7. Holley

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Holley 0-80555C Model 4175 650 CFM Spread Bore 4-Barrel Vacuum Secondary Electric Choke New Carburetor

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Holley #ad - Power valve blow-out protection adds trouble free operation. 100-percent wet-flow tested and calibrated for street drivability. Dichromate finish with 4-barrels. Includes vacuum for pcv, power brakes, EGR, distributor, air cleaner, and canister. Single feed fuel inlet with electric choke.
BrandHolley #ad
ManufacturerHolley #ad
Height0 Inches
Length0 Inches
Weight14.77 Pounds
Width0 Inches
Part Number080555C
Model0-80555C

8. A-Team Performance

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4MV, Remanufactured Rochester Quadrajet Carburetor, 1980-1989 Big Block Chevy/GMC 454 Truck Applications Electric Choke CARB Compatible With GM/CHEVY, A-Team Performance 1906

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A-Team Performance #ad - A-team performance 1906r - remanufactured rochester quadrajet carburetor - 4mv - compatible with 1980-1989 big block chevy/gmc 454 truck applications electric choke CARB GM/CHEVY Remanufactured 4-bbl. Carburetor q-jet casting 750 cfm vacuum Secondary Electric Choke Big Block Calibration For Chevy's with side-fill bowl configuration. This calibration will meet the fuel requirements of a big block up to 454c. I. To 430hp and rpm levels of 5500 .
BrandA-Team Performance #ad
ManufacturerA-Team Performance #ad
Part Number1906

9. Edelbrock

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Edelbrock 1407 Performer 750 CFM Square Bore 4-Barrel Air Valve Secondary Manual Choke New Carburetor

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Edelbrock #ad - Single feed fuel inlet with air valve secondary type. Shiny silver finish and calibrated for gasoline. Manual choke with 4-barrel square bore carburetor flange. Primary venturi booster is a bottom feed design for smoother acceleration and better drivability. Metering Rod Size-0071 x 0047 inches. Backed by edelbrock' s exclusive 90 day.
BrandEdelbrock #ad
ManufacturerEdelbrock #ad
Height0 Inches
Length0 Inches
Weight5 Pounds
Width0 Inches
Part Number1407
Model1407
WarrantyOne Year Limited Warranty

10. Edelbrock

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Edelbrock 1405 Performer 600 CFM Square Bore 4-Barrel Air Valve Secondary Manual Choke New Carburetor

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Edelbrock #ad - Backed by edelbrock's exclusive 90 day. Shiny silver finish and calibrated for gasoline. Designed and calibrated for optimum marine performance. Single feed fuel inlet with air valve secondary type. Fit type: Universal Fit. Manual choke with 4-barrel square bore carburetor flange.
BrandEdelbrock #ad
ManufacturerEdelbrock #ad
Height0 Inches
Length0 Inches
Weight8.7 Pounds
Width0 Inches
Part Number1405
Model1405
Warranty90 Day