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!
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- Qty in Cart
- Quantity
- Price
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Mr. Gasket Carb Adapter 4bbl-4bbl 1932
MR. GASKET
$35.37If you're running a modern 4-barrel carburetor on a classic engine or swapping carb styles, manifold compatibility becomes your biggest headache. This Mr. Gasket adapter eliminates that problem by converting your square-bore intake to accept spread-bore...MRG1932- SKU:
- MRG1932
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
- MFG Part #:
- 1932
$35.37 -
Mr. Gasket Carb Adapter 2bbl-Q-Jet 1929MRG
MR. GASKET
$38.71Swapping carburetors shouldn't require replacing your entire intake manifold. This Mr. Gasket adapter bridges the gap between Holley 2-barrel carbs and Q-Jet spread-bore manifolds, letting you upgrade your fuel delivery system without expensive...MRG1929- SKU:
- MRG1929
- Availability:
- Ships Same Business Day
- Weight:
- 1.52 LBS
- MFG Part #:
- 1929MRG
$38.71 -
Moroso 1/2in Wood Carb Spacer 65015
MOROSO
$54.99A carburetor spacer is a critical component for optimizing fuel distribution and tuning flexibility in your engine's induction system. The Moroso 1/2in wood spacer provides thermal isolation between your carburetor and intake manifold, reducing fuel...MOR65015- SKU:
- MOR65015
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MFG Part #:
- 65015
$54.99 -
Moroso 1/2in Billet Carb Spacer 64985
MOROSO
$70.99A quality carburetor spacer is essential for optimizing your intake manifold's air velocity and improving fuel atomization—directly impacting throttle response and overall engine efficiency. The Moroso 1/2in Billet Carb Spacer delivers precision...MOR64985- SKU:
- MOR64985
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- MFG Part #:
- 64985
$70.99 -
Moroso 1in Billet Carb Spacer 64981
MOROSO
$98.99A carburetor spacer is essential for optimizing fuel distribution, improving engine response, and lowering under-hood temperatures. The Moroso 1-inch billet spacer provides a precision-engineered solution that increases the distance between your carb and...MOR64981- SKU:
- MOR64981
- Availability:
- Ships Same Business Day
- Weight:
- 1.68 LBS
- MFG Part #:
- 64981
$98.99 -
Moroso 1in Alum. Carb. Spacer 64980
MOROSO
$82.99A carburetor spacer is a straightforward way to improve intake manifold sealing and optimize fuel distribution across your engine's cylinders. The Moroso 1-inch aluminum spacer adds thermal isolation between your carb and manifold, reducing heat soak...MOR64980- SKU:
- MOR64980
- Availability:
- Ships Same Business Day
- Weight:
- 1.73 LBS
- MFG Part #:
- 64980
$82.99 -
Moroso 2in Alum. Carb. Spacer 64970
MOROSO
$103.99A carburetor spacer creates critical distance between your carb and intake manifold, allowing for improved airflow dynamics and more consistent fuel atomization across all cylinders. The Moroso 2-inch aluminum spacer is cast from premium material to...MOR64970- SKU:
- MOR64970
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- MFG Part #:
- 64970
$103.99 -
Moroso Phenolic 1/2in 4 Hole 64943
MOROSO
$57.99A quality carburetor spacer does more than fill a gap—it optimizes fuel atomization, improves heat management, and can deliver measurable gains in throttle response and mid-range torque. The Moroso Phenolic 1/2in 4 Hole spacer is engineered from phenolic...MOR64943- SKU:
- MOR64943
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 64943
$57.99 -
Moroso Phenolic 1in Open 64940
MOROSO
$56.99Phenolic carburetor spacers are essential for serious carbureted builds—they provide thermal insulation that keeps fuel cooler and reduces vapor lock while maintaining consistent jetting performance under sustained load. The Moroso 1-inch open design...MOR64940- SKU:
- MOR64940
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MFG Part #:
- 64940
$56.99 -
Moroso Phenolic 1in 4 Hole 64930
MOROSO
$62.99A quality carburetor spacer is essential for optimizing fuel distribution, reducing heat transfer to the intake manifold, and maintaining consistent air-fuel ratios under sustained performance conditions. The Moroso Phenolic 1in 4 Hole spacer delivers...MOR64930- SKU:
- MOR64930
- Availability:
- Ships Same Business Day
- Weight:
- 1.52 LBS
- MFG Part #:
- 64930
$62.99 -
1in Street Sweep Carb. Spacer - Alum - 4150 ST4150-4AL
HIGH VELOCITY HEADS
$143.99A carburetor spacer is essential for optimizing manifold-to-carb airflow dynamics and improving overall engine response. This 1-inch Street Sweep aluminum spacer is precision-engineered to work with popular high-performance manifolds, giving you the...HVHST4150-4AL- SKU:
- HVHST4150-4AL
- Availability:
- Ships Same Business Day
- Weight:
- 2.06 LBS
- MFG Part #:
- ST4150-4AL
$143.99 -
1in. Super Sucker Alm. Carb. Spacer - 2BBL. SS4412-2AL
HIGH VELOCITY HEADS
$159.99The 1in. Super Sucker Aluminum Carburetor Spacer increases manifold volume and improves air velocity, delivering better fuel atomization and more consistent throttle response across your RPM range. By creating optimal spacing between your carburetor and...HVHSS4412-2AL- SKU:
- HVHSS4412-2AL
- Availability:
- Ships Same Business Day
- Weight:
- 2.77 LBS
- MFG Part #:
- SS4412-2AL
$159.99 -
1in. Super Sucker Alm. Carb. Spacer - 2BBL. SS4412-1 SWAL
HIGH VELOCITY HEADS
$148.99A carburetor spacer does more than fill the gap between your carb and intake manifold—it fundamentally improves fuel atomization, increases plenum volume, and enhances low-end throttle response. The Super Sucker's 1-inch thickness and sideways mount...HVHSS4412-1SWAL- SKU:
- HVHSS4412-1SWAL
- Availability:
- Ships Same Business Day
- Weight:
- 2.08 LBS
- MFG Part #:
- SS4412-1 SWAL
$148.99 -
.650 Super Sucker Alm. Carb Spacer - 4150 SS4150-604AL
HIGH VELOCITY HEADS
$154.99A carburetor spacer is essential for optimizing fuel atomization and air velocity through your intake manifold, directly impacting throttle response and low-end torque. The .650" thickness of this Super Sucker design strikes the ideal balance between...HVHSS4150-604AL- SKU:
- HVHSS4150-604AL
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MFG Part #:
- SS4150-604AL
$154.99 -
2in. Super Sucker L/W Alm. Carb. Spacer - 4150 SS4150-2ALW
HIGH VELOCITY HEADS
$189.99A quality carburetor spacer is essential for optimizing fuel atomization and improving throttle response in your racing engine. The 2in. Super Sucker design increases air velocity through the carburetor, delivering measurable gains in performance while...HVHSS4150-2ALW- SKU:
- HVHSS4150-2ALW
- Availability:
- Ships Same Business Day
- Weight:
- 1.69 LBS
- MFG Part #:
- SS4150-2ALW
$189.99 -
2in. Super Sucker Alm. Carb. Spacer - 4150 SS4150-2AL
HIGH VELOCITY HEADS
$157.99The 2in. Super Sucker Aluminum Carburetor Spacer increases the volume between your carb and intake manifold, improving fuel atomization and enhancing low-to-mid-range torque delivery. Built from lightweight aluminum and machined to precision tolerances,...HVHSS4150-2AL- SKU:
- HVHSS4150-2AL
- Availability:
- Ships Same Business Day
- Weight:
- 3.77 LBS
- MFG Part #:
- SS4150-2AL
$157.99 -
1in. Super Sucker L/W Alm. Carb. Spacer - 4150 SS4150-1ALW
HIGH VELOCITY HEADS
$157.99A carburetor spacer optimizes the air-fuel mixture distribution by increasing the distance between your carb and intake manifold, improving atomization and combustion efficiency. The Super Sucker design enhances low-end torque and throttle response while...HVHSS4150-1ALW- SKU:
- HVHSS4150-1ALW
- Availability:
- Ships Same Business Day
- Weight:
- 1.29 LBS
- MFG Part #:
- SS4150-1ALW
$157.99 -
Canton Phenolic 1in Q-Jet Space 85-250
CANTON
$72.00Thermal isolation is critical for carburetor performance and fuel stability, especially in high-heat engine bay environments. The Canton Phenolic 1in Q-Jet Space acts as a thermal barrier between your carburetor and intake manifold, reducing fuel...CAN85-250- SKU:
- CAN85-250
- Availability:
- Ships Same Business Day
- Weight:
- 1.11 LBS
- MFG Part #:
- 85-250
$72.00 -
Canton 1/2in Phenolic Carb Spacer 85-162
CANTON
$42.00A phenolic carb spacer isolates your carburetor from engine heat, maintaining consistent fuel temperature and improving throttle response and fuel atomization. The 1/2-inch thickness provides optimal thermal insulation while preserving intake manifold...CAN85-162- SKU:
- CAN85-162
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MFG Part #:
- 85-162
$42.00 -
Canton Phenolic 1in Open 85-160
CANTON
$65.00A quality carburetor spacer is essential for optimizing fuel atomization and managing intake temperatures in forced induction applications. The Canton Phenolic 1in Open delivers thermal insulation while maintaining consistent air-fuel mixture...CAN85-160- SKU:
- CAN85-160
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- MFG Part #:
- 85-160
$65.00
