Yes, and well.
the block & heads are the same you just have to pull the 305 out & put the 350 back in
In the cylinder heads.
Yes they will, but 305 heads have a smaller combustion chamber so it may raise your compression ratio.
Chevy didn't make a 306. A 302, 305, and 307, all of which will work just fine.
Is a 2.8 liter engine a 305?
Yes, they should fit ok. 305 heads should bump up the compression a little.
The headers for a 350 and 305 are the same.
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.
Possibly if Chevy made a 300.
Yes they will fit , But you will notice no change what soever. ( no more power )
It depends on what heads and ignition system you're using. You'll have better luck with AC plugs in a Chevy.
Heads off a 454 engine will not fit a 305 engine A 454 is a big block and a 305 is a small block. Even if they did fit it would probably run poorly due to low compression because the combustion chambers on the the 454 heads are larger than the ones on the 305 heads
How can you tell a 350 from a 305 engine?
Your question is a little vague, so im assuming you're asking which is better between 350 and 305 heads. Many people will tell you it doesnt matter. I think if you have a 350 engine then you should use 350 heads. the 305 heads will have higher compression, which will make the car louder, and somewhat faster, however, if you use 305 heads on a 350 engine then you should use a high octane fuel, so it will be better on your engine. Only use 305 heads if you know what your doing. if not you should probably stick with 350 heads. i hope that answered your question.
Because of the 305's small bore, you're pretty limited. Large valve heads (2.02/1.60) won't work on a 305 because the valves will hit the block itself. If it's an older 305, your best bet would be the old power pack 283 heads. They flow better than the older 305 heads. Now, if it's a vortec engine, you probably won't do much better than what it had stock. If you are really trying to go fast, the best thing you can do is junk the 305 and replace it with a 350 or a 327.
5.0L is a 305. 5.7L is a 350
305 heads of course, 350 heads will fit for sure and possibly 400. obviously no big block heads will fit. a 305 with 400 heads gets you a little over 352. 350 with 400 heads is a 383. add and divide
your OWNERS MANUAL will tell you' if you can read, that 5W30 is the required viscosity for the engine
No. The bore size is different between a 305 and 350. The 350 bore size is larger.
Depending on years that you are swapping around....yes. The 305 heads will raise the compression of the 350 considerably. However, the intake valves are a lot smaller than the 350.