What size Holley carburetor is a 80457 2?
600 CFM
Holley 80457-2 4 Barrel 600 CFM Carburetor.
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 CFM my carburetor is?
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 carburetor do 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 tell what size my Holley jet is?
How to Calculate Jet Sizes for a Holley Carb
- Establish the elevation and temperature the carburetor will be operating within.
- Establish the current jet size of the jets within the Holley carburetor. Adjust the jets one size for every 2,000 foot change in elevation or for every 35 degree change in temperature.
How do you find the date code on a Holley carburetor?
Decoding them is as follows:
- Three Digit – Example 763 > 7 – Year (1967) , 6 – Month (June) , 3 – (Third Week)
- Four Digit – Example 0798 > 079- Day of Year (would land in March) , 8 – 1978/1988/1998/2008.
How much horsepower will a 650 cfm carb support?
450-470 hp
So, using your Google-Fu you type “How much power can a 650 cfm carb support?” Well, chances are that you’ll get answers in the 450-470 hp range, but that’s not really the right way to look at it. In fact, horsepower—or even torque, for that matter—doesn’t matter at all.
How do you read the date code on a Holley carburetor?
What does CFM mean on a carburetor?
cubic feet per minute
Like we said, how much hp your engine makes doesn’t matter when sizing a carburetor. What matters is this formula: Cubic Inches x RPM / 3456 = CFM (cubic feet per minute) / Volumetric Efficiency.
Where is the list number on a 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.
What is the bolt pattern on a Holley carburetor?
This model of carburetor has the square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16″ x 5 5/8″ bolt pattern. If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor.
What model is a 0-80457s carburetor?
The information in this manual covers carburetor models 0-80457S and 0-1850S. For most pictures, the0-80457S carburetor (equipped with electric choke) is shown in the illustrations in this manual. NOTE:The 0-80457S and 0-1850S carburetors are 50-state emission legal replacement carburetors for 1965-69 V-8 applications.
Do I need a Holley p/n 20-93 carburetor for my Ford transmission?
NOTE:Unless replacing an existing Holley® Carburetor, you may need to purchase Holley® P/N 20-93, spring and perch kit, for Ford automatic transmissions. 1. Unlock transmission kickdown lever by removing screw and spring and relocating to additional hole in the transmission kickdown lever (Figure 5). 2.
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