Best USA-Made Carburetor Spacers

Looking for the best USA-made carburetor spacers?
Discover durable, high-performance spacers designed to boost engine power, cool operation, and fit seamlessly with popular carburetor models for effortless installation and lasting results.

Looking to boost your engine’s performance? USA-made carburetor spacers are a simple yet powerful upgrade. They help your engine run cooler and stronger.

These spacers are built to last and easy to install. They fit many popular carburetors, making them a great choice for any driver.

Ready to unlock your engine’s full potential? Discover the best USA-made carburetor spacers and experience the difference. Your engine will thank you!

List of Top 10 USA-Made Carburetor Spacers

Title	Best For	Price
Canton Racing Products “85-154 Phenolic Carburetor Spacer (For 4150/4160 Holley 4 Hole 1/4″), 1 Pack”	This phenolic carburetor spacer is perfect for car enthusiasts and racers using Holley 4150/4160 carbs. It stops heat transfer from the engine to the fuel system, improving performance. Made in the USA and designed for a Vehicle Specific fit, pair it with the 85-510 mounting stud kit for easy installation.	View on Amazon (paid link)
Edelbrock 8723 1/2″ Carburetor Spacer	This carburetor spacer is perfect for car enthusiasts and mechanics seeking durable construction and precise fit for engine upgrades. Its lightweight design and easy installation suit 1/2″ carburetor setups, while wood fiber laminate ensures long-lasting use. Made in the USA, it’s ideal for performance-focused builders who value quality parts.	View on Amazon (paid link)
Edelbrock 8725 Carburetor Spacer	The Edelbrock 8725 Carburetor Spacer is perfect for car enthusiasts who want to boost their engine’s performance. It’s ideal for those with dual-plane intake manifolds, looking to improve low RPM torque and throttle response.	View on Amazon (paid link)
JEGS Carburetor Heat Shield \| Open Style \| Made In USA \| Fits Holley 4150/4160, Edelbrock, BG, Demon, Carter, And AFB \| Includes 4 Gaskets, 2 Spacers, And 1 Heat Shield	This JEGS Carburetor Heat Shield is perfect for car enthusiasts who want to keep their engine cool and prevent fuel boiling. It’s ideal for those with Holley, Edelbrock, or other compatible carburetors who want reliable performance and easy installation.	View on Amazon (paid link)
Canton Racing 85-032 Phenolic Carburetor Spacer, 1 Pack	The Canton Racing 85-032 Phenolic Carburetor Spacer is perfect for car enthusiasts who want better control over their engine’s performance. If you want to fine-tune your carburetor with easy front and rear adjustments, this spacer is for you. It’s also great for those who value quality since it’s made in the USA with heli-coated threads for durability.	View on Amazon (paid link)
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. It’s easy to install and works great for specific vehicles.	View on Amazon (paid link)
2″ Open Phenolic Carburetor Spacer for Holley 4150 4160 4 Barrel Carb – Compatible with SBC BBC Small Block Big Block Chevy Engine	This 2″ Open Phenolic Carburetor Spacer is perfect for car lovers and mechanics who want to boost their engine’s power. It fits many types of engines and helps your car run stronger and smoother.	View on Amazon (paid link)
Canton Racing 85-150 Phenolic Carburetor Spacer, 1 Pack	This Canton Racing spacer is perfect for performance engine builders upgrading Holley 4150/4160 carbs (600+ CFM). It boosts airflow and power. The Heli-Coated threads ensure a secure fit. Made in the USA, it pairs well with the 85-520 Mounting Stud Kit for easy setup.	View on Amazon (paid link)
1″ Ported Phenolic Carburetor Spacer 4bbl SBC BBC BB Compatible for Holley SB Chevy Ford	This 1″ Ported Phenolic Carburetor Spacer is perfect for car enthusiasts who want to boost engine performance. It’s great for Holley, Edelbrock, and other square bore carburetors, fitting Chevy, Ford, and Mopar engines.	View on Amazon (paid link)
Canton Racing 85-162 Phenolic Carburetor Spacer for 4150/4160 Holley Open 1/2 Inch, 1 Pack	This Canton Racing Carburetor Spacer is perfect for performance enthusiasts and DIY mechanics looking to boost their engine’s power and prevent fuel vapor lock. If you’re working with a Holley 4150 or 4160 carburetor, this 1/2 inch spacer is a must-have upgrade to keep your fuel system cool and running smoothly.	View on Amazon (paid link)

Detailed Reviews

Discover the best USA-made carburetor spacers chosen by experts and trusted by users. Each product is carefully reviewed for quality, performance, and value. This guide helps you find the perfect spacer for your engine needs. Get ready to boost your ride with confidence!

1. Canton Racing Products “85-154 Phenolic Carburetor Spacer (For 4150/4160 Holley 4 Hole 1/4″), 1 Pack”

Unleash your engine’s full potential with the Canton Racing Products “85-154 Phenolic Carburetor Spacer.” This essential upgrade is designed for peak performance.

It’s built for Holley 4150/4160 600+ CFM carbs. This spacer is proudly made in the USA. It prevents heat transfer to your fuel system.

Get the recommended mounting stud kit for a perfect fit. This is a vehicle-specific accessory. Experience improved engine function.

Pros	Cons
Fits perfectly with Holley 4150/4160 600+ cfm carbs Made in the USA for trusted quality Stops heat transfer to keep fuel cool Easy to install with the right mounting kit Vehicle-specific fit ensures hassle-free setup	Requires separate mounting stud kit (not included) Limited compatibility beyond Holley 4150/4160 models Fixed 1/4″ thickness may not suit all setups

Perfect For:

This phenolic carburetor spacer is perfect for car enthusiasts and racers using Holley 4150/4160 carbs. It stops heat transfer from the engine to the fuel system, improving performance. Made in the USA and designed for a Vehicle Specific fit, pair it with the 85-510 mounting stud kit for easy installation.

Ready to Purchase?

View Price on Amazon (paid link)

2. Edelbrock 8723 1/2″ Carburetor Spacer

The Edelbrock 8723 Carburetor Spacer is made in the United States. It is lightweight and easy to install. The material is wood fiber laminate.

This spacer is 1/2 inch thick. It fits many carburetors.

It has small dimensions: 8.25 L x 11.5 H x 0.75 W inches. The weight is 0.75 pounds. It is a reliable car part.

Pros	Cons
Boosts engine performance. Improves fuel distribution. Easy to install. Durable wood fiber construction. Made in the USA.	Limited material choice: Only wood fiber laminate available. No installation tools or instructions included. Basic design: Lacks advanced features for high-performance use.

Perfect For:

This carburetor spacer is perfect for car enthusiasts and mechanics seeking durable construction and precise fit for engine upgrades. Its lightweight design and easy installation suit 1/2″ carburetor setups, while wood fiber laminate ensures long-lasting use. Made in the USA, it’s ideal for performance-focused builders who value quality parts.

Ready to Purchase?

View Price on Amazon (paid link)

3. Edelbrock 8725 Carburetor Spacer

The Edelbrock 8725 Carburetor Spacer is a simple upgrade for your engine. It fits dual-plane intake manifolds perfectly.

This spacer boosts low RPM torque and improves throttle response. It includes heat-insulating phenolic fiber for better performance. The divided-wall design speeds up the air and fuel mixture.

It measures 0.5 inches thick with a natural finish. This spacer is easy to install and works well. It’s a smart choice for better engine efficiency.

Pros	Cons
Fits dual-plane intake manifolds for easy installation. Heat-insulating phenolic fiber protects engine components from excess heat. 0.5-inch thickness ensures precise fit with natural finish. Boosts low RPM torque and throttle response for smoother driving. Divided-wall design increases air/fuel mixture speed for better performance.	Not for high RPM use, limits top-end power. Natural finish may not suit all engine styles. Specific fit for dual-plane intakes only.

Perfect For:

The Edelbrock 8725 Carburetor Spacer is perfect for car enthusiasts who want to boost their engine’s performance. It’s ideal for those with dual-plane intake manifolds, looking to improve low RPM torque and throttle response.

Ready to Purchase?

View Price on Amazon (paid link)

4. JEGS Carburetor Heat Shield | Open Style | Made In USA | Fits Holley 4150/4160, Edelbrock, BG, Demon, Carter, And AFB | Includes 4 Gaskets, 2 Spacers, And 1 Heat Shield

JEGS Carburetor Heat Shield | Open Style | Made In USA | Fits Holley 4150/4160, Edelbrock, BG, Demon, Carter, And AFB | Includes 4 Gaskets, 2 Spacers, And 1 Heat Shield

The JEGS Carburetor Heat Shield stops heat from cooking your fuel. It fits many popular carburetors like Holley and Edelbrock. Made in the USA, it uses strong, laser-cut aluminum.

This kit comes with everything you need: 4 gaskets, 2 spacers, and 1 heat shield. It keeps your engine cool and running smooth.

Pros	Cons
Stops fuel boiling, no more vapor lock! Fits many popular carbs like Holley and Edelbrock. Made with strong, laser-cut aluminum. Proudly made in the USA. Includes all you need: gaskets and spacers.	No universal fit, limits compatibility with other carburetors. Requires installation, not a plug-and-play solution. Aluminum construction may dent or bend under pressure.

Perfect For:

This JEGS Carburetor Heat Shield is perfect for car enthusiasts who want to keep their engine cool and prevent fuel boiling. It’s ideal for those with Holley, Edelbrock, or other compatible carburetors who want reliable performance and easy installation.

Ready to Purchase?

View Price on Amazon (paid link)

5. Canton Racing 85-032 Phenolic Carburetor Spacer, 1 Pack

Unlock peak performance for your vehicle with the Canton Racing 85-032 Phenolic Carburetor Spacer. This essential upgrade is engineered for precision tuning and superior results.

It offers easy front/rear adjustment. Made in the USA, it guarantees quality and durability. Consider the 85-510 Mounting Stud Kit for a complete setup.

Pros	Cons
Fine-tune your engine with front/rear adjustment. Made in USA for trusted quality. Heli-coated threads ensure durable performance. Easy upgrade with recommended mounting stud kit.	Limited pack size: Only one spacer included per purchase Extra purchase needed: Mounting stud kit sold separately Specific fit: May not suit all carburetor models

Perfect For:

The Canton Racing 85-032 Phenolic Carburetor Spacer is perfect for car enthusiasts who want better control over their engine’s performance. If you want to fine-tune your carburetor with easy front and rear adjustments, this spacer is for you. It’s also great for those who value quality since it’s made in the USA with heli-coated threads for durability.

Ready to Purchase?

View Price on Amazon (paid link)

6. Trans-Dapt Performance Carburetor Spacer, 1 in Thick, 2 Hole, Holley 2-Barrel, Gasket / Hardware Included, Aluminum, Natural, Each

Adds power and improves airflow for Holley 2-barrel carbs. 1-inch thick spacer boosts engine performance. Vehicle-specific fit ensures easy installation.

Includes gasket and hardware for quick setup. Aluminum build resists heat and lasts long.

Made in the United States for reliable quality. Natural finish matches most engine styles.

Pros	Cons
Boosts engine airflow for better performance. Durable aluminum build lasts through tough conditions. Easy to install with included gasket and hardware. Fits perfectly on Holley 2-barrel carburetors. Made in the USA, ensuring high quality.	Bulky packaging for small part Heavy 1.85-pound weight feels excessive Limited vehicle compatibility may restrict use

Perfect For:

This Trans-Dapt Performance Carburetor Spacer is perfect for car enthusiasts who want to boost their engine’s power. It’s easy to install and works great for specific vehicles.

Ready to Purchase?

View Price on Amazon (paid link)

7. 2″ Open Phenolic Carburetor Spacer for Holley 4150 4160 4 Barrel Carb – Compatible with SBC BBC Small Block Big Block Chevy Engine

The 2″ Open Phenolic Carburetor Spacer is a must-have for engine upgrades. It fits Holley 4150/4160 and other 4-barrel carbs. Works with Chevy, Ford, and Mopar engines.

This carb spacer boosts high RPM power with its open design. The 4-hole plate improves torque and response. Perfect for DIYers and pros.

Made from phenolic material, it’s durable and precise. Ensures a perfect fit and better airflow. Elevate your engine’s performance today!

Pros	Cons
Boosts high RPM power. Improves low-end and mid-range torque. Optimizes airflow for better efficiency. Ensures a perfect fit and durability. Adapts spread bore to square bore.	Not for stock engines, may cause rough idle or stalling. Requires tuning, professional help might be needed for optimal results. Bulkier design, could limit hood clearance in some vehicles.

Perfect For:

This 2″ Open Phenolic Carburetor Spacer is perfect for car lovers and mechanics who want to boost their engine’s power. It fits many types of engines and helps your car run stronger and smoother.

Ready to Purchase?

View Price on Amazon (paid link)

8. Canton Racing 85-150 Phenolic Carburetor Spacer, 1 Pack

Boost your engine’s power with the Canton Racing 85-150 Phenolic Carburetor Spacer. This essential upgrade is designed for peak performance.

It’s perfect for Holley 4150/4160 carbs. This spacer is proudly Made In USA. It features Heli-Coiled Threads for durability.

Consider the 85-520 Mounting Stud Kit as a recommended accessory. Get ready for a smoother, more powerful ride.

Pros	Cons
Works with Holley 4150/4160 600+ CFM carbs Made in the USA ensures top quality Heli-Coated threads resist stripping Pairs with Mounting Stud Kit for secure fit	Not universal: Only fits Holley 4150/4160 carbs. Extra cost: Requires separate mounting kit for installation. Limited use: Best for specific high-CFM setups, not all engines.

Perfect For:

This Canton Racing spacer is perfect for performance engine builders upgrading Holley 4150/4160 carbs (600+ CFM). It boosts airflow and power. The Heli-Coated threads ensure a secure fit. Made in the USA, it pairs well with the 85-520 Mounting Stud Kit for easy setup.

Ready to Purchase?

View Price on Amazon (paid link)

9. 1″ Ported Phenolic Carburetor Spacer 4bbl SBC BBC BB Compatible for Holley SB Chevy Ford

This 1″ phenolic spacer fits 4bbl carbs. It works with Holley, Edelbrock, and Barry Grant models. Includes bolts, washers, nuts, and two gaskets.

Phenolic material reduces heat transfer. This helps boost performance and fuel flow. Simple install with included hardware. No extra parts needed.

Designed for SBC, BBC, and BB engines. Works with Ford, Mopar, and Chevy setups. Universal square bore pattern fits most carbs. Reliable upgrade for power and efficiency.

Pros	Cons
Boosts engine power with 1″ total height spacer. Fits many brands: Holley, Edelbrock, Barry Grant, Ford, Mopar. Complete package with bolts, washers, nuts, and gaskets. Easy install for all square bore carburetors. Durable phenolic material resists heat and warping.	No instructions included, might confuse first-time users. Limited height may not suit all engine setups. Gaskets could wear out faster under high heat.

Perfect For:

This 1″ Ported Phenolic Carburetor Spacer is perfect for car enthusiasts who want to boost engine performance. It’s great for Holley, Edelbrock, and other square bore carburetors, fitting Chevy, Ford, and Mopar engines.

Ready to Purchase?

View Price on Amazon (paid link)

10. Canton Racing 85-162 Phenolic Carburetor Spacer for 4150/4160 Holley Open 1/2 Inch, 1 Pack

This spacer fits Holley 4150/4160 carburetors. It is made in the USA. It stops heat from the engine reaching the fuel system.

Heat can hurt fuel efficiency and performance. The phenolic material helps keep the fuel system cooler. Use it with the 85-510 Mounting Stud Kit for best results.

The spacer is durable and built to last. It is a simple fix for high-performance engine setups.

Pros	Cons
Perfect fit for Holley 4150/4160 carburetors. Made in the USA for reliable quality. Reduces engine heat transfer to fuel system. Durable phenolic material resists heat damage. Works with 85-510 Mounting Stud Kit for easy setup.	Fits only Holley #4150/4160 carburetors Requires extra mounting kit for installation Half-inch thickness may not suit all setups

Perfect For:

This Canton Racing Carburetor Spacer is perfect for performance enthusiasts and DIY mechanics looking to boost their engine’s power and prevent fuel vapor lock. If you’re working with a Holley 4150 or 4160 carburetor, this 1/2 inch spacer is a must-have upgrade to keep your fuel system cool and running smoothly.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Upgrade your engine’s power. USA-made carburetor spacers are simple fixes. They boost airflow, cut heat, and last long.

Material: Phenolic spacers block heat. Aluminum resists wear. Wood fiber is light. Pick based on your engine’s needs.
Thickness: 1/2-inch spacers improve low-end torque. 1- or 2-inch spacers boost high-RPM power. Match thickness to your goals.
Fit: Check carburetor type. Holley 4150/4160, Edelbrock, or 2-barrel? Ensure the spacer matches your model.
Heat Control: Spacers with phenolic or heat shields keep fuel systems cool. This stops vapor lock and boosts efficiency.
Install Ease: Look for kits with gaskets, bolts, or studs. Pre-drilled holes and simple designs cut setup time.
Performance: Open spacers add top-end power. Divided-wall designs improve throttle response. Pick your upgrade path.
Durability: USA-made spacers use tough materials. They resist cracks and handle engine stress for years.