Looking for the best Holley 4‑Barrel springs to boost your carburetor’s performance?
I provide a clear, engaging overview of top spring options so you can upgrade with confidence.
Holley 4-Barrel carburetors are a favorite among car enthusiasts for their power and performance. To keep them running smoothly, the right springs are essential. Whether you’re upgrading or replacing, choosing the best springs can make a big difference in how your engine performs.
Finding the perfect spring kit can be overwhelming with so many options. That’s why we’ve put together a guide to help you make an informed decision. From throttle return springs to vacuum secondary kits, we’ve got you covered.
We’ll show you the top picks, their key features, and how they can enhance your driving experience. Get ready to take your Holley carburetor to the next level.
List of Top 10 Holley 4-Barrel Springs
| Image | Title | Best For | Price |
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JEGS Chrome Throttle Return Spring Kit | Fits Holley 2 and 4-Barrel Carburetors | Compatible With Model 2300, 2305 2-BBL Holley and 4150 and 4160 4-BBL Holley |
This JEGS Chrome Throttle Return Spring Kit is perfect for car enthusiasts who want to upgrade their Holley carburetors. It’s ideal for those with 2-barrel or 4-barrel models, ensuring a smooth throttle return and great looks with its chrome-plated bracket. |
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Moroso 65425 Vacuum Secondary Spring Kit, Fits Holley Carburetors |
This kit is perfect for racers who want simple, fast control over their carb setup. It’s great for anyone who needs easy tuning with clear, color‑coded springs. |
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YGQ 4700 Throttle Return Springs Fit for Holley 4150 4160 SBC BBC Chevy Ford 302 350 |
This product is perfect for car enthusiasts who want to boost their vehicle’s performance. It’s ideal for those with high-performance carburetors looking for reliable throttle response. |
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Throttle Return Spring Kit Holley Carb Throttle Return Kit Compatible for Holley 4150 4BBL SBC BBC Chevy |
This Throttle Return Spring Kit is perfect for car enthusiasts who want to upgrade their Holley 4150 4BBL carburetor. It’s easy to install and works great for SBC BBC Chevy and Ford vehicles. |
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4150 4160 rebuild kit 20-13 Secondary Diaphragm Springs Replacement For Holley 20-13 Secondary Diaphragm Spring Kit |
This rebuild kit is perfect for car enthusiasts and mechanics who need to replace worn-out parts in their Holley 4150/4160 carburetors. It’s easy to use and clearly marked for quick repairs. |
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Holley 20-13 Secondary Diaphragm Spring Kit |
This Holley 20-13 Secondary Diaphragm Spring Kit is perfect for anyone who wants to improve their carburetor’s performance. It’s easy to install and works great for upgrades. |
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JEGS Return Spring Kit | Made In USA | Fits Holley Dominator 4500 Series Carburetors | Includes 2 Light & Heavy Springs, Steel Linkage Bushings, And Stainless Hardware |
This kit is perfect for anyone who wants a smooth, safe, and steady throttle on their high‑performance carb setup. It’s great for drivers who need a strong return action every time they lift their foot. |
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20-123 Side Hung Float Springs Fits For Holley Carburetor |
This product is perfect for car enthusiasts and mechanics who need reliable float springs for their Holley carburetors. It’s easy to install and fits many models, making it a great choice for quick repairs or upgrades. |
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Holley Carburetor Throttle Return Spring Kit |
This kit is perfect for anyone who wants a smooth, safe, and steady throttle feel on their Holley carb. It’s great for drivers who want simple parts that work every time. |
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Willy’s Carburetor & Dyno Shop WCD250 Throttle & Return Spring Kit – Holley 4-Ba |
This throttle and return spring kit is perfect for car enthusiasts who want to upgrade their Holley 4-Barrel carburetor. It’s ideal for those seeking better control and performance with its adjustable throttle stop and durable steel construction. |
Detailed Reviews
Discover the top 10 Holley 4-Barrel Springs in this expert-curated guide. Each product is handpicked for performance, durability, and value. Whether you need smooth throttle control or reliable upgrades, this list has you covered. Find the perfect spring to enhance your Holley setup today!
1. JEGS Chrome Throttle Return Spring Kit | Fits Holley 2 and 4-Barrel Carburetors | Compatible With Model 2300, 2305 2-BBL Holley and 4150 and 4160 4-BBL Holley
The JEGS Chrome Throttle Return Spring Kit is a must-have upgrade for your carburetor. It fits Holley 2 and 4-barrel models, ensuring a perfect match. The chrome-plated bracket adds style and durability.
This kit includes two steel springs for reliable performance. The dual spring design gives you peace of mind, knowing your throttle will return to idle smoothly.
With its easy installation and long-lasting materials, this kit is a smart choice for any Holley carburetor owner. Upgrade your setup with confidence and style.
| Pros | Cons |
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Perfect For:
This JEGS Chrome Throttle Return Spring Kit is perfect for car enthusiasts who want to upgrade their Holley carburetors. It’s ideal for those with 2-barrel or 4-barrel models, ensuring a smooth throttle return and great looks with its chrome-plated bracket.
Ready to Purchase?
2. Moroso 65425 Vacuum Secondary Spring Kit, Fits Holley Carburetors
The Moroso 65425 Vacuum Secondary Spring Kit fits Holley carburetors perfectly. It includes seven color-coded springs from light to heavy. This lets you customize how your vacuum secondary opens and closes.
You get springs of different rates to match your engine’s needs. The kit comes with easy instructions and fits most setups.
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Perfect For:
This kit is perfect for racers who want simple, fast control over their carb setup. It’s great for anyone who needs easy tuning with clear, color‑coded springs.
Ready to Purchase?
3. YGQ 4700 Throttle Return Springs Fit for Holley 4150 4160 SBC BBC Chevy Ford 302 350
The YGQ 4700 Throttle Return Springs are designed for high-performance carburetors. They fit Holley 4150 and 4160 models, along with SBC BBC Chevy and Ford 302 350 engines.
These springs feature a dual spring design with inner and outer coils. They are made of steel wire for added reliability and safety.
Package includes: 2 stainless steel springs. Easy installation ensures quick upgrades.
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Perfect For:
This product is perfect for car enthusiasts who want to boost their vehicle’s performance. It’s ideal for those with high-performance carburetors looking for reliable throttle response.
Ready to Purchase?
4. Throttle Return Spring Kit Holley Carb Throttle Return Kit Compatible for Holley 4150 4BBL SBC BBC Chevy
Throttle Return Spring Kit for Holley 4150 4BBL carbs. It helps give a clean, firm return for smooth use.
Made for SBC, BBC, Chevy, and Ford. It is a simple fit for many builds. Contact the seller if you need help.
| Pros | Cons |
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Perfect For:
This Throttle Return Spring Kit is perfect for car enthusiasts who want to upgrade their Holley 4150 4BBL carburetor. It’s easy to install and works great for SBC BBC Chevy and Ford vehicles.
Ready to Purchase?
5. 4150 4160 rebuild kit 20-13 Secondary Diaphragm Springs Replacement For Holley 20-13 Secondary Diaphragm Spring Kit
This rebuild kit gives your carb a fresh boost. It fits Holley 4150 / 4160 models with ease. It keeps your setup running smooth.
Each spring has a clear color so you can spot it fast. You get seven types plus a simple guide.
It replaces the Holley 20-13 secondary diaphragm spring kit. It helps you tune with clean, steady control.
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Perfect For:
This rebuild kit is perfect for car enthusiasts and mechanics who need to replace worn-out parts in their Holley 4150/4160 carburetors. It’s easy to use and clearly marked for quick repairs.
Ready to Purchase?
6. Holley 20-13 Secondary Diaphragm Spring Kit
The Holley 20-13 Secondary Diaphragm Spring Kit gives your carb a smooth, steady boost. It keeps airflow tight and clean.
Each spring is made to fit right and work fast. You get simple parts that make a big difference.
Your throttle feels better. Your ride stays steady. Your setup stays strong.
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Perfect For:
This Holley 20-13 Secondary Diaphragm Spring Kit is perfect for anyone who wants to improve their carburetor’s performance. It’s easy to install and works great for upgrades.
Ready to Purchase?
7. JEGS Return Spring Kit | Made In USA | Fits Holley Dominator 4500 Series Carburetors | Includes 2 Light & Heavy Springs, Steel Linkage Bushings, And Stainless Hardware
The JEGS Return Spring Kit is a must-have for your engine. It ensures your throttle returns to idle every time. This kit is made in the USA with high-quality parts.
It fits Holley Dominator 4500 carbs and similar models. The kit mounts directly to the front carb stud. Installation is simple and quick.
This kit includes two springs, steel linkage bushings, and stainless hardware. It’s built to last and keeps your engine running smoothly. Trust JEGS for reliable performance.
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Perfect For:
This kit is perfect for anyone who wants a smooth, safe, and steady throttle on their high‑performance carb setup. It’s great for drivers who need a strong return action every time they lift their foot.
Ready to Purchase?
8. 20-123 Side Hung Float Springs Fits For Holley Carburetor
The 20-123 Side Hung Float Springs are specially designed for Holley Carburetors. They ensure smooth fuel flow and optimal performance.
This pack includes one primary float spring and one secondary float spring. They fit Holley 4160 Series and other compatible carburetors.
Easy to install, durable, and reliable. Perfect for AED, Quick Fuel, and more.
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Perfect For:
This product is perfect for car enthusiasts and mechanics who need reliable float springs for their Holley carburetors. It’s easy to install and fits many models, making it a great choice for quick repairs or upgrades.
Ready to Purchase?
9. Holley Carburetor Throttle Return Spring Kit
The Holley Carburetor Throttle Return Spring Kit is made for specific Holley carbs. It fits 2300/2305 & 4150/4160 models. This kit is easy to use.
It includes heavy and light springs. Both are finished in chrome for a clean look.
This kit is engineered for performance. It ensures smooth throttle operation.
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Perfect For:
This kit is perfect for anyone who wants a smooth, safe, and steady throttle feel on their Holley carb. It’s great for drivers who want simple parts that work every time.
Ready to Purchase?
10. Willy’s Carburetor & Dyno Shop WCD250 Throttle & Return Spring Kit – Holley 4-Ba
The Willy’s Carburetor & Dyno Shop WCD250 Throttle & Return Spring Kit is a must-have for Holley 4-Barrel carburetors. It features durable steel construction with a sleek black powdercoated finish. The adjustable throttle stop ensures precise control for optimal performance.
This kit is easy to install and built to last. It’s a reliable upgrade for any Holley 4-Barrel setup.
| Pros | Cons |
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Perfect For:
This throttle and return spring kit is perfect for car enthusiasts who want to upgrade their Holley 4-Barrel carburetor. It’s ideal for those seeking better control and performance with its adjustable throttle stop and durable steel construction.
Ready to Purchase?
Buying Guide
Best Holley 4‑Barrel Springs make your carb feel sharp, smooth, and steady. They help your throttle snap back clean. They also keep your engine response tight and safe.
You want springs that feel right every time you press the pedal. You want parts that fit your Holley without trouble. You want simple upgrades that make your ride feel better.
Factors to Consider When Buying Holley 4‑Barrel Springs
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Fitment: Make sure the springs match your Holley model. Check the exact series like 4150, 4160, or 4500. A perfect fit gives smooth action and no stress.
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Spring Type: Choose between throttle return springs or vacuum secondary springs. Each type controls a different part of your carb. Pick the one your setup needs most.
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Spring Strength: Light springs feel soft. Heavy springs feel firm. Choose the strength that gives you clean control without making the pedal too stiff.
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Material Quality: Look for steel or stainless steel. Strong metal lasts longer and keeps tension steady. Good material means fewer issues over time.
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Dual vs. Single Springs: Dual springs add extra safety. If one fails, the other still works. Single springs are simple but offer less backup.
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Ease of Install: Some kits bolt on fast. Others need small adjustments. Pick a kit that matches your comfort level so the upgrade stays easy.
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Color Coding: Many vacuum secondary kits use color‑coded springs. Colors help you tune faster. You can swap springs without guessing.
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Brand Quality: Trusted brands like Holley, JEGS, Moroso, and Willy’s offer steady performance. Good brands mean better fit and fewer problems.
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Purpose: Choose springs based on your goal. Smooth idle? Faster secondary opening? Firmer pedal feel? Match the spring to the job.
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Durability: Strong coatings like chrome or powdercoat help fight wear. Durable springs stay tight and clean longer.
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Engine Setup: Some springs work better with SBC, BBC, or Ford builds. Make sure your engine and carb match the kit.
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Tuning Range: Kits with many spring options give more tuning freedom. More choices help you dial in the exact feel you want.