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Can you use the same fuel pump from a 305 v8 on 350 v8?

It depends on the specific fuel pump and the application.

Here's why:

* Mechanical Fuel Pumps: These pumps are directly driven by the engine's camshaft. Often, a 305 and 350 will use the same camshaft, meaning the fuel pump will have the same drive mechanism. However, there can be slight differences in the pump's output volume or pressure depending on the year of the vehicle.

* Electric Fuel Pumps: These pumps are typically mounted near the fuel tank. They are more independent of the engine and have different pressure and flow rate specifications.

To be sure, you need to consider:

* Year, Make, and Model: The fuel pump compatibility is highly dependent on the specific vehicles.

* Fuel System Configuration: The fuel system (carburetor or fuel injection) and its pressure requirements will impact fuel pump selection.

* Pump Output: You'll want to ensure the fuel pump provides enough volume and pressure for your 350 engine.

It's best to consult the manufacturer's specifications or a reputable parts store to ensure you get the correct fuel pump for your 350 V8. They can help you match the fuel pump to your engine's specific needs.