Looking for the best 4-hole carburetor spacers?
We offer tested, high-performance spacers from top brands like JEGS, Edelbrock, and Canton for cooler fuel, faster throttle response, and smoother runs.
Carburetor spacers are game-changers for engine performance. They boost air/fuel mix and reduce heat transfer. Simple upgrades with big rewards.
Drivers love the real-world gains: cooler fuel, faster throttle response, and smoother runs. Installation is a breeze with included hardware.
Top brands like JEGS, Edelbrock, and Canton lead the pack. Every pick here is tested for durability and power. Find your perfect fit and drive better today.
List of Top 10 4 Hole Carburetor Spacers
| Image | Title | Best For | Price |
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1″ Tall Ported Phenolic Carburetor Spacer 4 Hole Compatible for SB 4150/4160 4bbl. SBC BBC Carb |
This spacer is perfect for car enthusiasts and mechanics upgrading SBC BBC engines. It fits square bore carbs like Edelbrock or Demon, reduces heat transfer, and boosts power with a denser air/fuel mix. The kit includes gaskets and hardware for easy setup. |
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RoyalAir 1/4 inch Carburetor Spacer, 4 Holes, Compatible with Holley 4150/4160 Carburetors spacer replacement For Canton Racing Products 85-154 Carburetor Spacer |
This product is perfect for carburetor users needing a reliable fix for Holley 4150/4160 models. It reduces heat transfer, prevents vapor lock, and ensures secure installation with four-hole spacing. |
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ApplianPar 1″ Carburetor Spacer Adapter 4 Hole Square for Holley 4BBL AFB for Edelbrock Carb |
This ApplianPar Carburetor Spacer Adapter is perfect for car enthusiasts who want to boost engine performance. It’s ideal for those with Holley, Carter AFB, or Edelbrock carburetors looking for an easy upgrade. |
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1″ Tall Ported Phenolic Carburetor Spacer Set with 4 Hole Compatible with SB 4150 4160 4bbl. SBC BBC Carb |
This carburetor spacer is perfect for car tuners and mechanics upgrading small or big block engines. It reduces heat transfer for a denser air/fuel mix, boosting power and efficiency. Works with Edelbrock, Demon, and other square-bore carbs. Includes all needed parts for easy installation. |
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Carburetor Spacer 2696 Edel-brock Carter Four-Hole Square-Bore to Spread-Bore Aluminum Carburetor Manifold Adapter 4-bbl Q-Jet Carb Adapter Plate Kit Replace for Stock QuadraJet & Thermo-Quad 0.85 in. |
This product is perfect for car enthusiasts and mechanics upgrading older V8 engines. It fits Chevy, GM, GMC, Ford, and Dodge vehicles needing improved throttle response and horsepower without buying new parts. |
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JEGS Phenolic Carburetor Spacer | 4150 Square Bore Flange | 4-Hole | 1� Tall | Includes Two Gaskets And Mounting Hardware |
This product is perfect for car enthusiasts and performance tuners looking to boost engine airflow and power. Street racers and weekend mechanics will love its heat-resistant design, easy installation, and compatibility with popular carburetors. |
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Spectre Performance 5764 Universal 4-Hole/Open Carburetor Spacer |
The Spectre Performance 5764 Universal 4-Hole/Open Carburetor Spacer is perfect for car enthusiasts who want to boost engine performance. It’s ideal for those with Holley, Edelbrock, or AFB carburetors looking for an easy upgrade. |
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Mr. Gasket 6006 Spacer, Carburetor-4 Hole 1 in, Silver |
This product is perfect for mechanics and car enthusiasts needing to adjust carburetor spacing for better airflow. It’s ideal for those wanting a durable, corrosion-resistant solution that ensures easy installation and long-term use. |
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Canton Racing Products “85-154 Phenolic Carburetor Spacer (For 4150/4160 Holley 4 Hole 1/4″), 1 Pack” |
Perfect for car enthusiasts with Holley 4150/4160 carbs, this phenolic spacer stops heat from the engine, keeping the fuel system cooler. Made in the USA and built for a vehicle-specific fit, it boosts performance and durability in high-flow setups. |
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Allstar Performance ALL25986 4150 1″ Tapered 4-Hole Hi-Flow Carburetor Spacer |
The Allstar Performance ALL25986 Carburetor Spacer is perfect for drag racers who want better airflow and cooler temperatures. It’s easy to install and built tough for high-performance engines. |
Detailed Reviews
Looking for the best 4-hole carburetor spacers? Our expert-reviewed list blends top-rated picks and real-user favorites to boost power, cut heat, and improve throttle response. Each spacer is built tough with heat-resistant phenolic resin or aluminum, fitting Holley, Edelbrock, and more.
From easy bolt-on setups to high-performance builds, these spacers deliver proven gains in fuel efficiency and engine cooling. All include hardware for quick installs—no extra parts needed.
Ready to upgrade? Dive in to find the perfect match for your ride’s needs.
1. 1″ Tall Ported Phenolic Carburetor Spacer 4 Hole Compatible for SB 4150/4160 4bbl. SBC BBC Carb
This 1″ tall phenolic carburetor spacer fits 4-hole square bore carbs. It reduces heat transfer from the engine to the carburetor. The spacer includes mounting studs, nuts, and gaskets for easy setup.
Made of heat-resistant phenolic resin, it boosts air/fuel density for better power. Works with Edelbrock, Demon, Chevy, Ford, and Mopar engines. Ideal for SBC and BBC performance builds.
The spacer improves throttle response and fuel efficiency. Everything you need for quick installation is in the package.
| Pros | Cons |
|---|---|
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Perfect For:
This spacer is perfect for car enthusiasts and mechanics upgrading SBC BBC engines. It fits square bore carbs like Edelbrock or Demon, reduces heat transfer, and boosts power with a denser air/fuel mix. The kit includes gaskets and hardware for easy setup.
Ready to Purchase?
2. RoyalAir 1/4 inch Carburetor Spacer, 4 Holes, Compatible with Holley 4150/4160 Carburetors spacer replacement For Canton Racing Products 85-154 Carburetor Spacer
RoyalAir 1/4 inch Carburetor Spacer fits Holley 4150/4160 carburetors. It’s made of durable phenolic material to cut heat transfer. The 1/4 inch thickness and 4 holes ensure smooth fuel flow.
This spacer bolts securely with 4 corner mounting holes. It creates a thermal barrier to prevent vapor lock and keep fuel cool.
Precise fitment matches Canton Racing Products 85-154. A simple, reliable upgrade for long-lasting performance under pressure.
| Pros | Cons |
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Perfect For:
This product is perfect for carburetor users needing a reliable fix for Holley 4150/4160 models. It reduces heat transfer, prevents vapor lock, and ensures secure installation with four-hole spacing.
Ready to Purchase?
3. ApplianPar 1″ Carburetor Spacer Adapter 4 Hole Square for Holley 4BBL AFB for Edelbrock Carb
This 1.0 inch thickness carburetor spacer fits Holley, Carter, and Edelbrock 4BBL carbs with a square bore base. Its 4 Hole/Port style improves airflow for better engine performance.
It works with Holley 4150/4160, Carter AFB, and Edelbrock 4BBL carbs. The spacer boosts power by optimizing fuel-air mix. Mounting hardware is included for easy installation.
The simple design adds space between the carburetor and intake manifold. This helps boost engine performance and tuning flexibility.
| Pros | Cons |
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Perfect For:
This ApplianPar Carburetor Spacer Adapter is perfect for car enthusiasts who want to boost engine performance. It’s ideal for those with Holley, Carter AFB, or Edelbrock carburetors looking for an easy upgrade.
Ready to Purchase?
4. 1″ Tall Ported Phenolic Carburetor Spacer Set with 4 Hole Compatible with SB 4150 4160 4bbl. SBC BBC Carb
This carburetor spacer set is 1 inch tall and made of phenolic resin. It fits SB 4150, 4160, and 4bbl carburetors. The set includes all mounting hardware for easy installation.
It works with Edelbrock, Barry Grant, and more. The spacer reduces heat transfer, giving a denser air/fuel mix. This boosts power and efficiency in your engine.
If you’re not happy, return it within 30 days. The package includes 1 spacer, 2 gaskets, and 4 studs & nuts. It’s a simple upgrade for better performance.
| Pros | Cons |
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Perfect For:
This carburetor spacer is perfect for car tuners and mechanics upgrading small or big block engines. It reduces heat transfer for a denser air/fuel mix, boosting power and efficiency. Works with Edelbrock, Demon, and other square-bore carbs. Includes all needed parts for easy installation.
Ready to Purchase?
5. Carburetor Spacer 2696 Edel-brock Carter Four-Hole Square-Bore to Spread-Bore Aluminum Carburetor Manifold Adapter 4-bbl Q-Jet Carb Adapter Plate Kit Replace for Stock QuadraJet & Thermo-Quad 0.85 in.
The Edelbrock 2696 Carburetor Spacer adapts square-bore carbs to spread-bore intake manifolds. It lets you mount Edelbrock carbs on stock QuadraJet or Thermo-Quad engines with no need for new parts.
This aluminum adapter plate improves idle performance and boosts horsepower. It includes all hardware: gaskets, screws, studs, and nuts. Emissions legal for 1980-and-older GM V8s with carburetor #1400.
| Pros | Cons |
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Perfect For:
This product is perfect for car enthusiasts and mechanics upgrading older V8 engines. It fits Chevy, GM, GMC, Ford, and Dodge vehicles needing improved throttle response and horsepower without buying new parts.
Ready to Purchase?
6. JEGS Phenolic Carburetor Spacer | 4150 Square Bore Flange | 4-Hole | 1� Tall | Includes Two Gaskets And Mounting Hardware
The JEGS Phenolic Carburetor Spacer is 1½ inches tall. It helps keep your engine cool and efficient.
It fits a 4150 square bore flange. Works with Holley, Edelbrock, AFB, Carter, Quick Fuel, Proform. Includes two gaskets and hardware.
Made from phenolic plastic for lightweight strength. It reduces heat transfer to the carburetor.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for car enthusiasts and performance tuners looking to boost engine airflow and power. Street racers and weekend mechanics will love its heat-resistant design, easy installation, and compatibility with popular carburetors.
Ready to Purchase?
7. Spectre Performance 5764 Universal 4-Hole/Open Carburetor Spacer
This universal carburetor spacer fits Holley, Edelbrock, or AFB models. It’s 1 inch thick to boost air/fuel speed for better engine response. Gaskets and hardware come included for easy setup.
Installing this spacer improves performance and throttle control. It’s a quick upgrade with no extra parts needed.
| Pros | Cons |
|---|---|
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Perfect For:
The Spectre Performance 5764 Universal 4-Hole/Open Carburetor Spacer is perfect for car enthusiasts who want to boost engine performance. It’s ideal for those with Holley, Edelbrock, or AFB carburetors looking for an easy upgrade.
Ready to Purchase?
8. Mr. Gasket 6006 Spacer, Carburetor-4 Hole 1 in, Silver
The Mr. Gasket 6006 Spacer adds extra space between the carburetor and the intake manifold. It is made from strong, high-quality material.
It is corrosion resistant. It lasts a long time. It is easy to install.
| Pros | Cons |
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Perfect For:
This product is perfect for mechanics and car enthusiasts needing to adjust carburetor spacing for better airflow. It’s ideal for those wanting a durable, corrosion-resistant solution that ensures easy installation and long-term use.
Ready to Purchase?
9. Canton Racing Products “85-154 Phenolic Carburetor Spacer (For 4150/4160 Holley 4 Hole 1/4″), 1 Pack”
Canton Racing Products offers a phenolic carburetor spacer designed for Holley 4150/4160 carbs. It fits 600+ CFM models with a 4-hole pattern. This spacer is made in the USA.
This spacer stops heat transfer from the engine to the fuel system. It helps keep fuel cooler for better performance.
A mounting stud kit is recommended for easy installation. This vehicle-specific part ensures a perfect fit.
| Pros | Cons |
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Perfect For:
Perfect for car enthusiasts with Holley 4150/4160 carbs, this phenolic spacer stops heat from the engine, keeping the fuel system cooler. Made in the USA and built for a vehicle-specific fit, it boosts performance and durability in high-flow setups.
Ready to Purchase?
10. Allstar Performance ALL25986 4150 1″ Tapered 4-Hole Hi-Flow Carburetor Spacer
The Allstar Performance ALL25986 is a high-flow carburetor spacer. It is 1 inch thick and has 4 holes. It fits square bore carburetors easily.
This spacer can handle high temperatures up to 400°F. It improves airflow and engine performance.
It is made for drag racing and high-performance engines. The design is simple and durable. Every part is built to last.
| Pros | Cons |
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Perfect For:
The Allstar Performance ALL25986 Carburetor Spacer is perfect for drag racers who want better airflow and cooler temperatures. It’s easy to install and built tough for high-performance engines.
Ready to Purchase?
Buying Guide
Carburetor spacers boost performance. They improve air/fuel mix and cut engine heat. Drivers see real gains like faster throttle and smoother runs.
- Compatibility: Pick a spacer that fits your carburetor model. Check specs for Holley, Edelbrock, or Carter compatibility. Wrong size = wasted time and cash.
- Material: Phenolic resin spacers block heat better than metal. Aluminum offers durability but transfers more heat. Choose based on your engine’s needs.
- Heat Reduction: A thermal barrier keeps fuel cool. This cuts vapor lock and boosts power. Look for phenolic or thick spacers for max effect.
- Performance Gains: Throttle response and fuel efficiency improve with the right spacer. Taller spacers (1” or more) often enhance airflow more.
- Ease of Installation: All spacers here include hardware. Make sure studs, nuts, and gaskets are in the package. No extra parts needed = quick setup.
- Brand Reputation: Stick to trusted brands like JEGS, Edelbrock, or Canton. They test for durability and power. Avoid cheap knockoffs that warp or crack.
Match spacer size to your carb’s 4-hole pattern. Check thickness for airflow needs. Buy from brands that back their products. Your engine will thank you.