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Carburetor Adapter Plate

You’ve got a squarebore carb and a spreadbore intake manifold

You’ve got a squarebore carb and a spreadbore intake manifold—no problem! A carburetor adapter fits between the bottom of the carb or throttle body and the top of the manifold, just like a carburetor spacer, making the combination work!

Summit Racing Equipment’s powerful website makes finding the right carb adapter simple. Just select your flange types and bolt patterns in the left-hand column, and you’ll narrow down your search results! Then you can find the material, height, and brand you want.

Top Brands

For a leak-free fit, get your carb adapter from a trusted manufacturer! Summit Racing only carries brands that our sales...

You’ve got a squarebore carb and a spreadbore intake manifold—no problem! A carburetor adapter fits between the bottom of the carb or throttle body and the top of the manifold, just like a carburetor spacer, making the combination work!

Summit Racing Equipment’s powerful website makes finding the right carb adapter simple. Just select your flange types and bolt patterns in the left-hand column, and you’ll narrow down your search results! Then you can find the material, height, and brand you want.

Top Brands

For a leak-free fit, get your carb adapter from a trusted manufacturer! Summit Racing only carries brands that our sales and tech enthusiasts would use on their own project vehicles, like Mr. Gasket, Edelbrock, Holley, Canton Racing Products, Brodix, Dart, and more, plus our own Summit Racing brand adapters.

Individual Parts

Results 1 - 25 of 28

Carburetor Adapters, Open Center, 0.750 in. Thick, Aluminum, Natural Finish, Hardware, Gaskets, 4150/4160 Mounting Flange, Kit

Part Number: HLY-17-6

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Carburetor Adapters, Open Center Style, 0.50 in. Thick, Hardware, Gaskets, Aluminum, Natural Finish, fits 2300 Series Flange, Each

Part Number: HLY-17-43

5.0 out of 5 stars ( 2 )

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Carburetor Adapters, Open Center, Dominator Carburetor, Square Flange Manifold, 2.250 in. Thick, Kit

Part Number: HLY-17-9

Not Yet Reviewed

Estimated Ship Date: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Carburetor Adapter, Holley 2-Barrel to Quadrajet 4-Barrel, Each

Part Number: MRG-1929MRG

4.2 out of 5 stars ( 5 )

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Carburetor Adapter, Open Center, Two Barrel Carburetor, 2-Barrel Manifold, .500 in. Thick, Kit

Part Number: MRG-1937MRG

4.45 out of 5 stars ( 11 )

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Carburetor Adapter, Open Center, Square Bore Carburetor, 1.00 in. Thick, Kit

Part Number: MRG-1933

4.42 out of 5 stars ( 26 )

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Carburetor Adapter, Open Center, Holley 2-Barrel Carburetor, Small 1-Barrel Manifold, 1.75 in. Thick, Kit

Part Number: TRD-2044

3.47 out of 5 stars ( 15 )

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Carburetor Adapter, Open Center, Holley 2-Barrel Carburetor, Rochester 2-Barrel Manifold, .500 in. Thick, Each

Part Number: TRD-2086

4.24 out of 5 stars ( 21 )

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Carburetor Adapter, 2-Hole, Holley 2-Barrel Carburetor, Spread Bore Manifold, 1.00 in. Thick, Each

Part Number: SUM-G1407

3.83 out of 5 stars ( 6 )

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Carburetor Adapter, Open Center, Holley 2-Barrel Carburetor, Toyota 22R Manifold, 1.75 in. Thick, Kit

Part Number: TRD-2184

5.0 out of 5 stars ( 1 )

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Carburetor Adapter, Aluminum, Natural, Holley 4360 to Small Quad, Kit

Part Number: OFY-6264

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Carburetor Adapter, 4-Barrel Carburetor to 4-Bolt 2-Barrell Manifold, Each

Part Number: SPE-5772

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Carburetor Adapter, 1.00 in. Height, Aluminum, Natural, Square Bore Carb Flange, Spread Bore Manifold Flange

Part Number: SPE-5765

3.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Carburetor Spacer, 2.125 in. Tall, Open, Aluminum, Natural, Carter, Edelbrock, Holley, Square Bore, Each

Part Number: TRD-2381

4.86 out of 5 stars ( 7 )

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Carburetor Adapter, Ported, Holley 2-Barrel Carburetor, Large 1-Barrel Manifold, 1.125 in. Thick, 2 15/16, Kit

Part Number: TRD-2041

3.67 out of 5 stars ( 18 )

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Carburetor Adapter, Weber DGV And Holley 5200-5210 Carbs To Datsun B110/B210 for use on Honda®Civic, Kit

Part Number: TRD-2133

5.0 out of 5 stars ( 2 )

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Carburetor Adapter, 2-Hole Type, Holley 2-Barrel Carburetor to Square Bore Manifold, 1.0 in. Thick, Each

Part Number: HAM-3223

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Carburetor Adapter, Open Center, 4-Barrel/2-Barrel, .938 in. Thick, Kit

Part Number: TRD-2065

3.71 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Carburetor Adapter, Open Center, 2-Barrel Carburetor/2-Barrel Manifold, Kit

Part Number: TRD-2040

4.6 out of 5 stars ( 5 )

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Carburetor Adapter, Open Center, 2-Carburetor/2-Barrel Manifold, .625 in. Thick, Kit

Part Number: TRD-2039

3.8 out of 5 stars ( 5 )

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Carburetor Adapter Weber DGV to Datsun

Part Number: TRD-2107

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Carburetor Adapter, Ported, Square Bore Carburetor, 4-Barrel Manifold, .500 in. Thick, Kit

Part Number: TRD-2090

3.25 out of 5 stars ( 4 )

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Carburetor Adapter, 2-Barrel Rochester Carburetor to 4-Barrel Quadrajet Intake Manifold, Open Center, 1.00 in. Thick, Kit

Part Number: TRD-2087

4.2 out of 5 stars ( 5 )

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Carburetor Adapter, 0.75 in., 2300/2305 2-Barrel Carburetor to 4150/4160 Intake, 1.50 in. Bore

Part Number: MOR-64965

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today