I don't know of any visual differences between them, but if you look up the block number at mortec.com you might be able to find it.
The block number is stamped into a boss on the block just forward of the passenger side head.
The harminoc balancer. The 305 balancer is thin and the 350 is thicker and heaver.
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.
the biggest difference is obviously the stroke and bore of the engine and the size of the engine
Is a 2.8 liter engine a 305?
As long as the 350 is a fuel injected engine / TBI / Throttle Body Injection engine there is NO difference.
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.
yes
5.0L is a 305. 5.7L is a 350
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.
yes
Yes. The HO engine in the Monte Carlo SS had higher compression, bigger valves, and a different cam.
about $2000