Kolasina 37-485 carb rebuild kit full set for Holley 4150 series enables complete restoration project
Kolasina gaskets and O-rings provide a tight, leak-free seal during carburetor service
Kolasina pump diaphragm delivers steady fuel pressure for smoother throttle response
Kolasina needle and seat ensure accurate metering for consistent idle and power
Kolasina power valve maintains correct fuel mixture under varying pressure and load
Kolasina Holley 4150/4150C compatibility supports multiple CFM configurations for versatile projects
Kolasina kit in packaging ready for quick rebuilds with dependable 2-year warranty
Kolasina 37-485 carb rebuild kit full set for Holley 4150 series enables complete restoration project
Kolasina gaskets and O-rings provide a tight, leak-free seal during carburetor service
Kolasina pump diaphragm delivers steady fuel pressure for smoother throttle response
Kolasina needle and seat ensure accurate metering for consistent idle and power
Kolasina power valve maintains correct fuel mixture under varying pressure and load
Kolasina Holley 4150/4150C compatibility supports multiple CFM configurations for versatile projects
Kolasina kit in packaging ready for quick rebuilds with dependable 2-year warranty

Kolasina 37-485 Carburetor Rebuild Kit for Holley 4-Barrel 4150 Series (600-850 CFM)

Upgrade your Holley 4-barrel with the Kolasina 37-485 Carburetor Rebuild Kit, designed for Holley 4150 and 4150C...
Vendor: Kolasina
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£47.49
£47.49
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Kolasina 37-485 carb rebuild kit full set for Holley 4150 series enables complete restoration project

Kolasina 37-485 Carburetor Rebuild Kit for Holley 4-Barrel 4150 Series (600-850 CFM)

£47.49
Kolasina 37-485 carb rebuild kit full set for Holley 4150 series enables complete restoration project
Kolasina gaskets and O-rings provide a tight, leak-free seal during carburetor service
Kolasina pump diaphragm delivers steady fuel pressure for smoother throttle response
Kolasina needle and seat ensure accurate metering for consistent idle and power
Kolasina power valve maintains correct fuel mixture under varying pressure and load
Kolasina Holley 4150/4150C compatibility supports multiple CFM configurations for versatile projects
Kolasina kit in packaging ready for quick rebuilds with dependable 2-year warranty

Kolasina 37-485 Carburetor Rebuild Kit for Holley 4-Barrel 4150 Series (600-850 CFM)

£47.49
Description
Description
x

Upgrade your Holley 4-barrel with the Kolasina 37-485 Carburetor Rebuild Kit, designed for Holley 4150 and 4150C carburetors in the 600 to 850 CFM range. This 100% new kit blends durable materials with precise components to help you refresh your carburetor and restore confident performance. While not a guarantee of results, many users report smoother idle, steadier fuel delivery, and enhanced overall driveability after a rebuild with high-quality parts like these.

What’s inside a complete rebuild

  • Gaskets and O-rings for solid seals
  • Pump diaphragm(s) for reliable fuel action
  • Needle and seat assemblies for accurate metering
  • 125-65 6-5'Hg power valve(s) tailored to typical Holley settings

The kit covers a wide range of Holley 4150 family models, including 600 CFM, 650 CFM, 700 CFM, 750 CFM, 800 CFM, and 850 CFM configurations. Each part is selected to withstand the engine’s rhythm and heat, helping you rebuild with confidence and fewer surprises.

Durability, precision, and potential performance gains

Durable materials and precise fit translate to dependable rebuilds that resist leaks and wear. Expect more consistent fuel delivery during transitions, a steadier idle, and improved throttle response when the carburetor is rebuilt with components designed for longevity.

  • Comprehensive components designed for a complete rebuild
  • Quality materials built to endure engine operation and vibration
  • Compatibility across Holley 4150/4150C models, including multiple CFM ranges

Real-world use cases

Ideal for classic car restorations, weekend project cars, or routine carburetor refreshes. The set is well-suited for enthusiasts who want to restore peak fueling reliability, achieve smoother idle, and maintain steady performance across varying driving conditions.

  • Restore a Holley 4150/4150C carb for a more reliable rebuild
  • Support smoother idle and improved throttle response after repair
  • Prepare for routine maintenance with a complete, ready-to-install kit

Warranty and support

All Kolasina rebuild kits come with a 2-year warranty, offering added peace of mind as you plan your maintenance schedule and rebuild projects.

FAQ

Q: What Holley carburetor models is the 37-485 rebuild kit compatible with?

A: Compatible with Holley 4150/4150C carbs, including 600–850 CFM variants.

Q: Does the Kolasina 37-485 kit come with a warranty?

A: Yes. It includes a 2-year warranty from the seller.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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