How do I identify my Holley carb?
It’s like a “VIN” for your carburetor and should be hand-stamped on the front of the choke tower to the right of the vent tube on most typical Holley carbs. The list number typically is four to six digits long and may or may not have a suffix number behind it. The date code will be right below it.
How do I know what carb rebuild kit to get?
Using your carburetor number is the BEST way to get the proper carb kit. 99.9% of all carburetors have an identification number located on the carburetor. Some numbers are stamped directly into the carburetor, others used a tag attached to one of the carb body screws.
How do I know what carburetor I have?
The list number is stamped on your carburetor, either on the corner of the airhorn or choke tower or, if it doesn’t have an airhorn, on the mainbody. Remove the carburetor from your vehicle before looking for the list number to easily find the information you need.
How do I know what CFM my carburetor is?
How to calculate Carburetor CFM. The formula for calculating how much CFM (cubic feet per minute) your engine requires is: CFM = Cubic Inches x RPM x Volumetric Efficiency ÷ 3456. Any ordinary stock engine will have a volumetric efficiency of about 80%.
What’s the difference between Holley 4150 and 4160?
These two are very similar with the primary difference that the 4150 uses a thick metering block in both the primary and secondary while the 4160 is shorter in length and uses a thin, metering plate on the secondary side.
What size carburetor do I need for a 350?
A 600-cfm carburetor may perform quite well on a stock 350 Chevy. However, the minute you start weaving in power adders like a hotter cam, a dual-plane performance intake manifold, and aluminum heads you’re going to need 700-750 cfm.
How much is a carburetor rebuild?
Rebuilding the Carb
| Cost | $10 – $60 (Do-It-Yourself) $70/hr plus $10-$60 in parts (Shop Repair Bill) |
|---|---|
| Time | 1.5 – 2 or more Hours |
| Difficulty | Mechanically Skilled |
| Task Summary | Remove, Disassemble, Clean, Replace Components, Rebuild, Reinstall |
How do I know what CFM My Demon carb is?
The number “6” is stamped on the top of the body and the air horns are the size of a quarter. That’s it! That’s how you identify the 575 cfm mech secondary Demon Carb.
What happens if your carburetor is too big?
If the carburetor is too large for the engine, it may not open the secondaries all the way, because the additional airflow is not required. “Also, unless the application is race-specific with conditions that warrant plugging, the power valve should be left installed. This is especially true in a street vehicle.
What cfm carb do I need for a 350?
How many CFM is a Holley 4150?
830 cfm
Holley 830 cfm 4150 HP Carburetor Kit Includes 830 CFM Carb.
Where is the Holley list number on a carburetor?
The Holley List Number can divulge any and all necessary information to identify the specifications for your carburetor. On the standard 4150/4160 models, this number will be located on the throttle lever side of the air horn. Depending on the age of your carburetor, the list number can begin with distinct markings.
Is there a rebuild kit for a Holley carb Hunter?
Due to the unique nature of this carburetor, there are no off-the-shelf to rebuild kits available. It would be best to speak with one of Holley’s Technical Service Representatives at 1-888-258-3835 for their recommendation on what would work best.
Where do you find the numbers on a carburetor?
They are usually stamped on the carburetor body and preceded by the word ‘LIST’ or the letter ‘R’. Numbers that are preceded by ‘6R’ or other combinations of numbers and the letter ‘R’ are casting numbers referring to a particular part of the carburetor and cannot be used to identify the carburetor.
What does s2ms-9510-a stand for in Holley carb Hunter?
The first line, “S2MS-9510-A” represents our O.E. (Ford) number, used for their records/catalog to keep track of which vehicle it would be installed on. While there are resources dedicated to decoding this code, it is unused by Holley when attempting to source a rebuild kit or service part. The second line contains the list number “3259-1”.