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Primarily the bore size. The 305 has a bore of 3.74 and the 350 is a 4.0 bore. They share the same stroke on the crank. And no, you can't bore a 305 to a 4.0 bore.

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Q: What the difference between 305 and 350 Chevy engine?
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What is the difference between 305 and 350?

Subtract 305 from 350 and that will give you the difference (or interval) between the two numbers:- the answer is 45. However, if you mean what is the difference between a Chevy 305 and a Chevy 350, then it is the difference between the engine bore (the cylinder) sizes. The 305 bore is 3.740 inches. And the 350 bore is 4.000 inches, giving the Chevy 350 20HP more then the Chevy 305.


What is the difference between a Chevy 305 and a 327 motor?

the biggest difference is obviously the stroke and bore of the engine and the size of the engine


Is there any difference between a Chevy 305 engine in a half ton pickup and a 305 in a Monte Carlo SS?

Yes. The HO engine in the Monte Carlo SS had higher compression, bigger valves, and a different cam.


What is a Chevy 305?

The Chevy small block V8 305 cubic inch engine was manufactured between 1976 and 1996. It was used in cars and trucks.


Is a Chevy 2.8 engine a 305?

Is a 2.8 liter engine a 305?


What do you need to swap a 350 Chevy engine into a1988 Chevy pick-up with a 305 Chevy engine?

As long as the 350 is a fuel injected engine / TBI / Throttle Body Injection engine there is NO difference.


What is the cost to rebuild a Chevy 305 engine?

The cost to rebuild a Chevy 305 engine typically runs between $400 and $800 depending on the level of rebuild. This will greatly extend the life of the engine and improve performance.


Will a 1985 305 intake manifold fit on a 1988 305 Chevy?

No. There were major engine changes between those years.


What is the special feature of the Chevy 305 engine?

There is no information on the internet about what the special feature of the Chevy 305 engine is, in fact, the Chevy 305 and 350 are interchangeable, one is just an older model.


What is the difference in horsepower between a Chevy 305 and a 350?

Depends on how the motor is set up.


What mean 460777 on the back of the Chevy engine?

This is the block casting number for a Chevy 305, build between 1976 and 1979.


What is the visual difference between a 305 and a 350 engine?

The harminoc balancer. The 305 balancer is thin and the 350 is thicker and heaver.