Will a transmission of 305 fit 350 engine?

It depends on the *specific* transmissions and the year/model of the vehicles they came from. A "305" and "350" engine designation only tells part of the story. They refer to the cubic inch displacement of small-block Chevrolet V8 engines, but there were many variations over the years with different bellhousing bolt patterns, transmission lengths, and other critical dimensions.

You need to specify:

* The exact year, make, and model of the vehicle the 305 engine came from. This will help determine the correct bellhousing bolt pattern.

* The exact year, make, and model of the vehicle the 305 transmission came from. This is crucial for matching the bellhousing to the engine.

* The exact year, make, and model of the vehicle the 350 engine came from. Again, to verify the bellhousing pattern.

A transmission might *physically* fit, but it won't necessarily work correctly without the correct adapter, bellhousing, and potentially other modifications. Without knowing the specifics, a simple "yes" or "no" is impossible and potentially misleading. You'll need to consult a transmission specialist or a detailed parts catalog.