Readers ask: How To Tell What Size Carter Carburetor You Have?

What size is a Carter AFB carburetor?

The air horn diameter for mounting the air cleaner is a standard size at 5-1/8 inches. The Carter AFB and the Holley 4010, 4150 or 4160 carburetors are considered square-bore models. The Carter AFB will interchange into most Holley square-bore applications.

What CFM is a Carter AFB carburetor?

The cfm of the Carter WCFB four-barrel carburetor is approximately 400. The Carter WCFB carburetors have a square-ish body with a rectangular air horn that protrudes above the air cleaner flange.

What do carburetor numbers mean?

Weber model numbers are always stamped on the carburetor body. They always begin with a 2-digit number (or a pair of 2-digit numbers separated by a slash) followed by three or four letters. The model number prefix is a 2-digit number that refers to the diameter of the throttle plate(s) in millimeters.

How do you identify a Marvel Schebler carburetor?

Schebler carburetors are identified by a letter model series with a numerical designation, “DLTX-5,” “MA-3-A,” or “TSX-33,” for example. The example “DLTX-5” identifies a Schebler D-Series carburetor, with the other positions indicating a specific model or upgrade within the D-Series.

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What Carter Carburetor do I have?

Identify original equipment Carter carburetors by finding the letter “S” after the serial number of the carburetor. The serial numbers will be stamped onto the carburetor bowl. Identify all other Carter carburetors not listed above by referring to the tag on the side of the carburetor.

What happened to Carter carburetors?

In 1984, with fuel injection having replaced carburetors on most cars, the plant closed. In 1985, American Car and Foundry shut down the entire Carter Carburetor foundry, a year later ceding the PCB-contaminated property to the City of St. Louis.

What CFM is a Carter ThermoQuad?

Wide-open, the “small” TQ was rated at 800 cfm, while the larger unit spec’d at 850 cfm, blowing away the airflow capacity of any previous OEM Mopar four-barrel. While the ThermoQuad certainly had the flow to support big power, the timing of events curbed its chance at glory as a high performance carb.

How does a Carter AFB carburetor work?

When the throttle is depressed, and engine vacuum drops, the piston is pushed up by the spring, pulling the metering rod out of the jet, increasing the amount of fuel available for the engine to consume. The fuel passes an air bleed that is similar in concept to the air bleeds used in the idle circuit.

What happens if your carburetor is too big?

If the barrels are too big, the loss of air velocity means the cylinder will not fill to its full capacity. An engine with a carb that is too big will put out less Torque and Horsepower. It will be difficult to drive due to poor low-end torque. If you drag race your car, an oversized carb will produce slow 60 ft.

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How do I find my carburetor number?

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.

Is a 650 cfm carb to big for a 350?

If you’re expecting a maximum of 6,500 rpm, you’re going to need a 650- to 700-cfm carburetor. These sizing numbers are only the beginning of carburetor selection—a baseline. A 600-cfm carburetor may perform quite well on a stock 350 Chevy.

How much is a carburetor rebuild kit?

How Much Does a Carburetor Rebuild Kit Cost? A carburetor rebuild kit usually costs around $50 to $250, depending on its brand and inclusions. Most rebuild kits are direct fit, so make sure to choose one that’s compatible with your vehicle.

How do I identify my Zenith carburetor?

Zenith carburetor produced after about 1980 will not have the round tag, but will have a tiny number stamped (never raised) in a semi-circle on the body of the carburetor. Some Zenith carburetors produced in the 1920’s up to about 1935 have a long thin rectangular tag with the Zenith number stamped.

Who makes Zenith carburetors?

Zenith Carburetor (later the Fuel Devices Division of Bendix Corporation ) was an American manufacturer of gasoline engine management systems and components, chiefly carburetors and filters. It was founded in Detroit, Michigan in 1911 as a subsidiary of the French Société du carburateur Zénith.

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