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#427371544
Holley 37-1544 4150 4 Barrel Carburetor Rebuild Fast Kit
- Ideal for a quick refresher of your four barrel Holley carb
- Includes step-by-step instructions and a detailed tuning guide
- Fits 650 CFM and 750 CFM carburetors (see list)
$62.42
/each
In Stock
$69.35
Save $6.93
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Product Summary
Universal Fit, Gasoline Fuel Type
- Ideal for a quick refresher of your four barrel Holley carb
- Includes step-by-step instructions and a detailed tuning guide
- Fits 650 CFM and 750 CFM carburetors (see list)
- Comes with two 6.5 power valves
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Return PolicyHolley 37-1544 Details
Holley 37-1544 Details
These kits are ideal for a quick refresher of your four barrel Holley carb. Each kit includes step-by-step instructions and a detailed tuning guide. Fits 650 CFM and 750 CFM carburetors.
Charts
427-371544 Instructions (PDF)
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Holley Heritage Sale 10% off Select Parts
Holley Heritage 10% Off Select Parts Sale, running from July 6, 2026, through July 31, 2026. For a limited time, customers can save 10% off on select parts, making it the perfect opportunity to upgrade your vehicle with high-quality components. Sale prices apply to purchases made during the sale period only. No rainchecks or exceptions will be provided. This sale cannot be combined with any other offers, discounts, or promotions.
Guides & Documents
Holley 37-1544 Specifications
Holley 37-1544 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 37-1544 |
| Brand | Holley |
| Fuel Type | Gasoline |
| GENERAL | |
| Sold in Quantity | Kit |
| Notes | If this is needed for an alcohol application different accelerator pumps with be needed. Includes (2) 30cc pumps, (1) 50cc pump, and (2) 65 power valves. |
| GTIN Code | 090127437131 |
Ratings & Reviews
4.8
18 Reviews
The product being reviewed is a rebuild kit for Holley carburetors. Customers appreciate its comprehensiveness, containing all parts required for a rebuild including multiple accelerator pumps and power valves. However, meter jets or accelerator pump jets are not included. The kit fits perfectly, proving practical and easy to use with clear instructions. Its quality is commended, with users stating that it helped their carburetors operate perfectly. Some even said they would buy it again, favoring it over other alternatives. Despite some criticisms, the majority confirmed the kit's usability, quality, and functionality.
Ratings & Reviews
4.8
18 Reviews
The product being reviewed is a rebuild kit for Holley carburetors. Customers appreciate its comprehensiveness, containing all parts required for a rebuild including multiple accelerator pumps and power valves. However, meter jets or accelerator pump jets are not included. The kit fits perfectly, proving practical and easy to use with clear instructions. Its quality is commended, with users stating that it helped their carburetors operate perfectly. Some even said they would buy it again, favoring it over other alternatives. Despite some criticisms, the majority confirmed the kit's usability, quality, and functionality.
4.8
18 reviews
5
16
4
1
3
1
2
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1
0
Most Liked Positive Review
5.0
Best Holley Kit for the price
Everything you need to rebuild (but not re-jet) a Holley 410. Comes with multiple accelerator pumps and power valves. Doens't come with meter jets or accelerator pump jets. Easy to follow instructions and of course, excellent Holley quality.
Most Liked Negative Review
3.0
I would not purchase this product again.
They just don't have the contents they used to have to do a proper rebuild, you have to go back to boxes of your old parts to do it correctly.
Filter by Ratings
I only needed one.
5.0
5 months ago
Hutch
Mo.
Verified
It was a complete kit. It's a little better instructions would have helped
Would Recommend
Great carburetor rebuild kit
5.0
a year ago
383 Monte SS
Oklahoma
Verified
Looks like everything needed in 1 kit.
Would Recommend
Great product
5.0
a year ago
Racer28
Hixton, Wisconsin
Verified
Everything I needed to rebuild my carburetor
Would Not Recommend
This is a great product
5.0
a year ago
Duster741
Bellevue, Ne
Verified
Comes with everything you need including nonstick bowl gaskets. Great instructions and a measuring guide for the floats and settings.
Would Recommend
Great value
5.0
2 years ago
Stinky
Indiana
Verified
Overall rebuild easy.
Would Recommend
I would not purchase this product again.
3.0
4 years ago
Paul
Nebraska
Verified
They just don't have the contents they used to have to do a proper rebuild, you have to go back to boxes of your old parts to do it correctly.
Would Not Recommend
Yes would buy this again
5.0
5 years ago
Kenneth
Chouteau , Ok.
Verified
One stop shopping
Would Recommend
Yes
5.0
5 years ago
Dale the roadhogg
Ky
Verified
It worked out really good I like it everything in the kid that I needed to take care of the problem carburetor works and operates perfect
Would Recommend
yep just what i wanted havent tried to reuse them yet
5.0
6 years ago
Willie B Me
Texas
Verified
perfect fit
Would Recommend
This kit had everything I needed and then some.
5.0
6 years ago
Champ
Lincoln
Verified
I needed a kit to rebuild my 4150 650 cfm Holley and this fit the bill.
Would Recommend
Showing 10 of 18 reviews
Questions & Answers
Questions & Answers
3 Questions • 3 Answers
Can this kit be used on a R4779-9 Holley ?
by PV
• 7 years ago
1 answer
View Answer
Looking for a kit to fit my holley 650 80783-1 , not sure this is it as its not in the listing of numbers that fit , any clue on what kit i need ?
by Psyck
• 7 years ago
1 answer
View Answer
What size of Power Valves are included in this kit?
by clarsen
• 7 years ago
1 answer
View Answer
3 of 3 questions shown