Carburetor Adapters and Spacers
Circle Track Race Car Carburetor Adapters & Spacers at JJ Motorsports
Adapt your circle track race car's carburetor setup with premium adapters and spacers from JJ Motorsports, designed for precise flange matching, improved airflow, and customizable height in high-RPM racing conditions. These high-quality aluminum spacers and adapter plates ensure secure mounting, reduced turbulence, and reliable performance for dirt track, oval, and stock car applications, helping you achieve better throttle response and power delivery on the track.
Shop top brands like Allstar Performance and Holley for race-proven reliability. Explore related categories such as Circle Track Carburetors & Components, Circle Track Air & Fuel, or Circle Track Racing for jets, intakes, and exhaust to complete your carburetion setup and dominate the track with total confidence across all race conditions, from short ovals to high-bank superspeedways.
Top Circle Track Race Car Carburetor Adapters & Spacers
- Holley Carburetor Spacer 1/4in Phenolic 20-99 – Phenolic 1/4" spacer for Holley 4150 carbs; reduces heat soak and improves velocity.
- Allstar Performance Carburetor Adapter Plate ALL75071 – Billet adapter for 4150 to 4500 flange; precision CNC-machined for leak-free fit.
- Quick Fuel Carburetor Spacer 1/2in Aluminum QFT-30-129 – Aluminum 1/2" spacer for Q-Series carbs; enhances plenum volume for better distribution.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Allstar Performance Base Plate Inserts 1.050 4pk for 1/2in Spacer ALL26179
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.050 4pk for 1/2in SpacerRestrictor Plate Inserts1.050 in IDAluminumNaturalAllstar 1/2 in Restrictor PlateSet of 4ALL26179- SKU:
- ALL26179
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MFG Part #:
- ALL26179
$38.99 -
Allstar Performance Base Plate Inserts 1.400 4pk for 1in Spacer ALL26069
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.400 4pk for 1in SpacerRestrictor Plate Inserts1.400 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26069- SKU:
- ALL26069
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- MFG Part #:
- ALL26069
$38.99 -
Allstar Performance Base Plate Inserts 1.350 4pk for 1in Spacer ALL26068
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.350 4pk for 1in SpacerRestrictor Plate Inserts1.350 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26068- SKU:
- ALL26068
- Availability:
- Ships Same Business Day
- Weight:
- 1.07 LBS
- MFG Part #:
- ALL26068
$38.99 -
Allstar Performance Base Plate Inserts 1.300 4pk for 1in Spacer ALL26067
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.300 4pk for 1in SpacerRestrictor Plate Inserts1.300 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26067- SKU:
- ALL26067
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MFG Part #:
- ALL26067
$38.99 -
Allstar Performance Base Plate Inserts 1.250 4pk for 1in Spacer ALL26066
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.250 4pk for 1in SpacerRestrictor Plate Inserts1.250 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26066- SKU:
- ALL26066
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- MFG Part #:
- ALL26066
$38.99 -
Allstar Performance Base Plate Inserts 1.200 4pk for 1in Spacer ALL26065
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.200 4pk for 1in SpacerRestrictor Plate Inserts1.200 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26065- SKU:
- ALL26065
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- MFG Part #:
- ALL26065
$38.99 -
Allstar Performance Base Plate Inserts 1.150 4pk for 1in Spacer ALL26064
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.150 4pk for 1in SpacerRestrictor Plate Inserts1.150 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26064- SKU:
- ALL26064
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- MFG Part #:
- ALL26064
$38.99 -
Allstar Performance Base Plate Inserts 1.100 4pk for 1in Spacer ALL26063
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.100 4pk for 1in SpacerRestrictor Plate Inserts1.100 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26063- SKU:
- ALL26063
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- MFG Part #:
- ALL26063
$38.99 -
Allstar Performance Base Plate Inserts 1.000 4pk for 1in Spacer ALL26062
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.000 4pk for 1in SpacerRestrictor Plate Inserts1.000 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26062- SKU:
- ALL26062
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MFG Part #:
- ALL26062
$38.99 -
Allstar Performance Base Plate Inserts .950 4pk for 1in spacer ALL26061
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts .950 4pk for 1in spacerRestrictor Plate Inserts0.950 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26061- SKU:
- ALL26061
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- MFG Part #:
- ALL26061
$38.99 -
Allstar Performance Adjustable Base Plate 1in ALL26060
ALLSTAR PERFORMANCE
$75.99Adjustable Base Plate 1inRestrictor Plate1 in Thick4 HoleSquare BoreAluminumNaturalEachALL26060- SKU:
- ALL26060
- Availability:
- Ships Same Business Day
- Weight:
- 1.83 LBS
- MFG Part #:
- ALL26060
$75.99 -
Allstar Performance Base Plate Inserts 1.050 4pk for 1in Spacer ALL26059
ALLSTAR PERFORMANCE
$38.99Base Plate Inserts 1.050 4pk for 1in SpacerRestrictor Plate Inserts1.050 in IDAluminumNaturalAllstar 1 in Restrictor PlateSet of 4ALL26059- SKU:
- ALL26059
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- MFG Part #:
- ALL26059
$38.99 -
Allstar Performance Adjustable Angled Carb Spacer ALL25977
ALLSTAR PERFORMANCE
$369.99Adjustable Angled Carb SpacerCarburetor SpacerAdjustable Angled2 in Thick4 HoleSquare BoreAluminumBlack AnodizedEachALL25977- SKU:
- ALL25977
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- MFG Part #:
- ALL25977
$369.99 -
Allstar Performance Carburetor Shear Plate 4500 2.125 in Bores Dominator Flange ALL25973
ALLSTAR PERFORMANCE
$95.99This carburetor shear plate is engineered to enhance performance in race engines with significant cam overlap by creating a dam under the throttle plates, which helps build low pressure and improve the vacuum signal to the carburetor. It features a...ALL25973- SKU:
- ALL25973
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MFG Part #:
- ALL25973
$95.99 -
Allstar Performance Carburetor Shear Plate 4500 2.000 Bore Aluminum ALL25972
ALLSTAR PERFORMANCE
$95.99The Allstar Performance Carburetor Shear Plate is engineered to enhance the performance of race engines, particularly those with significant cam overlap. By creating a dam under the throttle plates, it builds low pressure and improves the vacuum signal...ALL25972- SKU:
- ALL25972
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- ALL25972
$95.99 -
Allstar Performance Carburetor Shear Plate 1/2" Thick 1-3/4" Bores Square Bore Aluminum ALL25970
ALLSTAR PERFORMANCE
$95.99The Allstar Performance Carburetor Shear Plate is engineered to enhance the performance of race engines, particularly those with significant cam overlap. By creating a dam under the throttle plates, it builds low pressure and improves the vacuum signal...ALL25970- SKU:
- ALL25970
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MFG Part #:
- ALL25970
$95.99 -
Air Flow Research 1in Phenolic 4150 Carb Spacer Tapered 4 4460
AIR FLOW RESEARCH
$47.001in Phenolic 4150 Carb Spacer Tapered 4Carburetor SpacerLightweight1 in Thick4 HoleSquare BorePlasticBlackEachAFR4460- SKU:
- AFR4460
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- MFG Part #:
- 4460
$47.00 -
Air Flow Research 1in Phenolic 4150 Carb Spacer Open Clover 4450
AIR FLOW RESEARCH
$47.001in Phenolic 4150 Carb Spacer Open CloverCarburetor SpacerLightweight1 in ThickOpenSquare BorePlasticBlackEachAFR4450- SKU:
- AFR4450
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MFG Part #:
- 4450
$47.00 -
On Sale
Wehrs Q-Jet Carb Adapter 1in Thick WEHWM10Q500
WEHRS MACHINE
MSRP: $75.99Now: $72.00Was: $75.99Carburetor Adapter1 in Thick2 HoleSquare Bore to Spread BoreAluminumBlack AnodizedEachWEHWM10Q500- SKU:
- WEHWM10Q500
- Availability:
- Ships Same Business Day
- Weight:
- 1.87 LBS
- MFG Part #:
- WM10Q500
MSRP: $75.99Now: $72.00Was: $75.99 -
Mr. Gasket Phenolic 1in Open 3405
MR. GASKET
$51.05Phenolic 1in Open Carburetor Spacer 1 in Thick Open Square Bore Hardware Included Phenolic Each Save yourself time, money and effort with a simple arb adaptation from Mr. Gasket! These kits offer an easy way to improve the performance of your engine...MRG3405- SKU:
- MRG3405
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MFG Part #:
- 3405
$51.05Qty in Cart: 0Quantity:Price:$51.05Subtotal:
