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What Size Carburetor Do I Need for a 383 Stroker?

by Eileen Johnson

The Chevy 383 Stroker engine is a 350 production block engine using a 400 production crank. It is popular among Chevy enthusiasts seeking more horsepower because it is both an easy and cost-efficient upgrade.

Stroker Engines

Stroker engines increase the stroke of the pistons by using an altered crankshaft, which increases displacement without changing engine blocks. This allows more air and fuel into the cylinders, increasing torque and horsepower.

Carburetors

The functions of a carburetor include controlling engine speed, combining gas and air into a combustible mixture, and regulating air and fuel ratio. Carburetor sizes are measured by cubic feet per minute. A 600 cfm carburetor, for example, flows 600 cubic feet of air for one minute at wide open throttle. The higher the cfm, the more air a carburetor can flow.

Carburetor For 383 Stroker

The carburetor used depends on the type of engine and the use of the engine. For normal street driving with a 383 stroker engine, ChevyMania! recommends a 650 cfm carburetor. A 750 cfm carburetor will make the engine more powerful, but it is the largest that should be used unless the engine is being used for racing.

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