Looking for the best performance carburetor spacers? We’ve compiled a list of the top 10 options to help you boost your engine’s airflow, fuel efficiency, and horsepower with ease.
Carburetor spacers are a simple yet powerful upgrade for your engine. They boost airflow, improve fuel efficiency, and increase horsepower. Whether you’re a car enthusiast or a performance seeker, the right spacer can make a big difference.
These small parts pack a big punch. They fit between the carburetor and intake manifold, creating space for better air movement. This leads to smoother acceleration and stronger performance.
Choosing the best carburetor spacer can feel overwhelming. But don’t worry, we’ve done the research for you. Get ready to discover the top options that will take your engine to the next level.
List of Top 10 Performance Carburetor Spacers
| Image | Title | Best For | Price |
|---|---|---|---|
![]() |
Trans-Dapt Performance Carburetor Spacer, 1 in Thick, 2 Hole, Holley 2-Barrel, Gasket / Hardware Included, Aluminum, Natural, Each |
This Trans-Dapt Performance Carburetor Spacer is perfect for car enthusiasts who want to boost their engine’s power and improve fuel efficiency. It’s easy to install and comes with everything you need, making it ideal for DIY upgrades. |
|
![]() |
Trans-Dapt Performance Trans-Dapt 2584 Phenolic Carburetor Spacer |
The Trans-Dapt Performance Phenolic Carburetor Spacer is perfect for car enthusiasts who want to boost engine performance. It’s lightweight and easy to install, making it ideal for anyone looking to improve their vehicle’s efficiency. |
|
![]() |
Spectre Performance 5776 1″ Open Carb Spacer with Tube |
The Spectre Performance 5776 is perfect for car enthusiasts who want to boost their engine’s power. It’s ideal for those using Holley, Edelbrock, or Carter AFB carburetors. |
|
![]() |
Allstar Performance Carburetor Spacer, 1 in Thick, Open, Dominator Flange, Plastic, Gray, Each |
This carburetor spacer is perfect for car enthusiasts who want to boost engine performance. It’s easy to install and fits specific vehicles. |
|
![]() |
TRANSDAPT Performance 2136 Aluminum Carburetor Spacer |
This TRANSDAPT Performance 2136 Aluminum Carburetor Spacer is perfect for car enthusiasts who want to boost engine performance. It’s ideal for Holley 2-bbl carburetors, fitting 350-500-650 cfm models. |
|
![]() |
uxcell Carb Spacers 1″ Tall Open Phenolic Carburetor Spacer for Chevy for Ford 350 SBC BBC BB 4BBL with Gasket Screws Kit |
This carburetor spacer kit is perfect for car enthusiasts who want to boost engine performance. It’s ideal for Chevy and Ford 350 engines with 4-barrel carbs. |
|
![]() |
Spectre Performance 5764 Universal 4-Hole/Open Carburetor Spacer |
This Spectre Performance Carburetor Spacer is perfect for car enthusiasts who want to boost their engine’s power. It’s easy to install and works with Holley, Edelbrock, or AFB carburetors. |
|
![]() |
Allstar Performance ALL25981 4150 1″ Hi-Flow Carburetor Spacer |
The Allstar Performance ALL25981 4150 1″ Hi-Flow Carburetor Spacer is perfect for car enthusiasts who want to boost their vehicle’s performance. It’s easy to install and fits specific vehicles, making it a great choice for upgrading your ride. |
|
![]() |
Canton Racing Products “85-154 Phenolic Carburetor Spacer (For 4150/4160 Holley 4 Hole 1/4″), 1 Pack” |
This carburetor spacer is perfect for car enthusiasts who want to boost their engine’s performance. It’s ideal for those with Holley 4150/4160 carbs looking to keep fuel cooler and improve efficiency. |
|
![]() |
Allstar Performance ALL25980 4150 0.500″ Hi-Flow Carburetor Spacer |
This carburetor spacer is perfect for drag racers who want to boost their engine’s power. It’s designed to improve airflow and reduce heat transfer, giving you better performance on the track. |
Detailed Reviews
Discover the top 10 Performance Carburetor Spacers handpicked for maximum engine power and efficiency. Each product is expert-reviewed and backed by real customer feedback, ensuring you get the best value for your upgrade. Whether you’re after affordability or peak performance, this guide has you covered. Dive in to find the perfect spacer that fits your needs and takes your vehicle to the next level.
1. Trans-Dapt Performance Carburetor Spacer, 1 in Thick, 2 Hole, Holley 2-Barrel, Gasket / Hardware Included, Aluminum, Natural, Each

The Trans-Dapt Performance Carburetor Spacer boosts your engine’s power. It fits Holley 2-Barrel carburetors perfectly. The 1-inch thick design improves airflow.
This spacer is made from high-quality aluminum. It comes with a gasket and hardware for easy install.
The package weighs 1.85 pounds and is made in the USA. It’s a vehicle-specific part for a perfect fit.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Trans-Dapt Performance Carburetor Spacer is perfect for car enthusiasts who want to boost their engine’s power and improve fuel efficiency. It’s easy to install and comes with everything you need, making it ideal for DIY upgrades.
Ready to Purchase?
2. Trans-Dapt Performance Trans-Dapt 2584 Phenolic Carburetor Spacer

The Trans-Dapt Performance Phenolic Carburetor Spacer is a lightweight and compact solution for your engine. It weighs just 1.6 ounces and fits easily into your setup.
This carburetor spacer is made in Taiwan and measures 8.63 x 7.63 x 1 inches. It’s model number 2586 and designed for performance. Easy to install, durable, and reliable.
| Pros | Cons |
|---|---|
|
|
Perfect For:
The Trans-Dapt Performance Phenolic Carburetor Spacer is perfect for car enthusiasts who want to boost engine performance. It’s lightweight and easy to install, making it ideal for anyone looking to improve their vehicle’s efficiency.
Ready to Purchase?
3. Spectre Performance 5776 1″ Open Carb Spacer with Tube

The Spectre Performance 5776 is a 1-inch open carb spacer made for Holley, Edelbrock, and Carter AFB carburetors. It’s crafted from precision die-cast aluminum for durability. This spacer boosts power by increasing air/fuel velocity.
Its open design with a tube ensures efficient airflow. The kit includes gaskets and hardware for easy installation. It’s a simple upgrade that delivers noticeable performance gains.
Perfect for car enthusiasts seeking affordable power improvements. Easy to install and ready to use right out of the box.
| Pros | Cons |
|---|---|
|
|
Perfect For:
The Spectre Performance 5776 is perfect for car enthusiasts who want to boost their engine’s power. It’s ideal for those using Holley, Edelbrock, or Carter AFB carburetors.
Ready to Purchase?
4. Allstar Performance Carburetor Spacer, 1 in Thick, Open, Dominator Flange, Plastic, Gray, Each

The Allstar Performance Carburetor Spacer is a 1-inch thick, open design made from durable plastic. It features a Dominator flange for a secure fit on specific vehicles.
This spacer is lightweight at 0.9 pounds and measures 2.54 H x 27.177 L x 17.526 W (cm). It’s made in the United States and designed for vehicle-specific use.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This carburetor spacer is perfect for car enthusiasts who want to boost engine performance. It’s easy to install and fits specific vehicles.
Ready to Purchase?
5. TRANSDAPT Performance 2136 Aluminum Carburetor Spacer

The TRANSDAPT Performance 2136 is a high-quality aluminum carburetor spacer. It’s designed to boost engine performance by improving airflow.
This spacer is 1/2″ tall and 0.5″ thick. It fits Holley 2BBL carburetors perfectly. Works with 350-500-650 cfm models.
Made from durable aluminum, it’s lightweight and long-lasting. A simple upgrade for better engine efficiency.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This TRANSDAPT Performance 2136 Aluminum Carburetor Spacer is perfect for car enthusiasts who want to boost engine performance. It’s ideal for Holley 2-bbl carburetors, fitting 350-500-650 cfm models.
Ready to Purchase?
6. uxcell Carb Spacers 1″ Tall Open Phenolic Carburetor Spacer for Chevy for Ford 350 SBC BBC BB 4BBL with Gasket Screws Kit

The uxcell Carb Spacers are 1-inch tall and made from durable phenolic material. They fit Chevy and Ford engines with 4-barrel carbs. The open center design boosts RPM and torque power.
This kit includes gaskets, screws, studs, and nuts for easy installation. It protects your carburetor from heat and corrosion, ensuring long-lasting performance.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This carburetor spacer kit is perfect for car enthusiasts who want to boost engine performance. It’s ideal for Chevy and Ford 350 engines with 4-barrel carbs.
Ready to Purchase?
7. Spectre Performance 5764 Universal 4-Hole/Open Carburetor Spacer

The Spectre Performance 5764 is a universal carburetor spacer. It works with Holley, Edelbrock, or AFB carburetors. This spacer is 1 inch thick.
It helps increase air and fuel velocity. This can boost your engine’s performance. The gaskets and hardware are included for easy installation.
This carburetor spacer is simple to install. It is a great upgrade for your vehicle’s engine. The Spectre Performance 5764 is a reliable choice.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Spectre Performance Carburetor Spacer is perfect for car enthusiasts who want to boost their engine’s power. It’s easy to install and works with Holley, Edelbrock, or AFB carburetors.
Ready to Purchase?
8. Allstar Performance ALL25981 4150 1″ Hi-Flow Carburetor Spacer

The Allstar Performance ALL25981 is a high-flow carburetor spacer. It’s made in the United States. This part is designed for specific vehicles.
Its package dimensions are 2.794 H x 21.082 L x 16.002 W (centimetres). The package weight is 1.0 pounds, making it easy to handle.
This spacer improves airflow for better engine performance. It’s a reliable choice for vehicle upgrades.
| Pros | Cons |
|---|---|
|
|
Perfect For:
The Allstar Performance ALL25981 4150 1″ Hi-Flow Carburetor Spacer is perfect for car enthusiasts who want to boost their vehicle’s performance. It’s easy to install and fits specific vehicles, making it a great choice for upgrading your ride.
Ready to Purchase?
9. Canton Racing Products “85-154 Phenolic Carburetor Spacer (For 4150/4160 Holley 4 Hole 1/4″), 1 Pack”

The Canton Racing Products 85-154 Phenolic Carburetor Spacer is made in the USA. It fits Holley 4150/4160 600+ CFM carbs. This spacer stops heat from reaching your fuel system.
It’s a vehicle-specific fit, so check your setup. Pair it with the 85-510 mounting stud kit for easy installation.
This spacer improves engine performance by keeping fuel cool. It’s a simple upgrade for better efficiency.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This carburetor spacer is perfect for car enthusiasts who want to boost their engine’s performance. It’s ideal for those with Holley 4150/4160 carbs looking to keep fuel cooler and improve efficiency.
Ready to Purchase?
10. Allstar Performance ALL25980 4150 0.500″ Hi-Flow Carburetor Spacer

The Allstar Performance ALL25980 is a high-flow carburetor spacer designed to boost your engine’s performance. It increases airflow by creating more space between the carburetor and manifold. This simple upgrade can make a big difference in your vehicle’s power.
This spacer is specially crafted for drag racing, where every bit of horsepower counts. It prevents heat transfer, keeping your carburetor cooler and more efficient. With its vehicle-specific fit, installation is straightforward and ensures optimal results.
Get ready to enhance your engine’s breathing and unleash its full potential with this easy-to-install performance part.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This carburetor spacer is perfect for drag racers who want to boost their engine’s power. It’s designed to improve airflow and reduce heat transfer, giving you better performance on the track.
Ready to Purchase?
Buying Guide
Carburetor spacers are a simple upgrade that can boost your engine’s power. They improve airflow, fuel efficiency, and horsepower. Whether you’re a car enthusiast or a performance seeker, the right spacer makes a big difference.
Buying the Best Performance Carburetor Spacer: A Pro Guide
Here’s what to consider when choosing the perfect carburetor spacer for your vehicle:
-
Compatibility:
Make sure the spacer fits your carburetor model and engine type. Check for vehicle-specific options to avoid mismatches. -
Material:
Choose between aluminum for durability or phenolic for heat resistance. The material affects performance and longevity. -
Thickness:
Thicker spacers (like 1-inch) improve airflow but may not fit all setups. Pick the right thickness for your engine’s needs. -
Design:
Open spacers boost airflow, while closed spacers focus on fuel efficiency. Decide based on your performance goals. -
Ease of Installation:
Look for spacers with included gaskets and hardware. This makes installation quick and hassle-free. -
Brand Reputation:
Stick with trusted brands like Trans-Dapt, Spectre, or Allstar Performance. They offer reliable and tested products. -
Price:
Carburetor spacers range from affordable to premium. Balance your budget with the features you need. -
User Reviews:
Check reviews to see how the spacer performs in real-world conditions. This helps avoid surprises.
With these factors in mind, you’re ready to pick the best carburetor spacer for your engine. Upgrade smartly and enjoy the power boost!