The headers for a 350 and 305 are the same.
yes
Yes you sure can. There the same.
What engine is it in? 305/350 V8s use 5L of 5w30 in the winter and 10w30 in the summer
Yes, but running a 350 cam with 305 heads is not effective,you need to run 350 heads as well. In order to benefit from a 350 cam you need something to flow that extra fuel and air, so using 350 heads along side of the 350 cam will be the cheapest and best choice. HAVE FUN!! A 350 head can physically bolt onto a 305 block. However, 350 heads can have the valves extend into the cylinder and contact the cylinder wall (even with the smaller 305 cam). The 350 cam in the 305 with stock heads will work. You wont want to use 350 heads you will lose compression due to the largers combustion chambers.
You will need to have the heads for the 305 bored out to the same size as the 350. I disagree: you can use the 305 heads on the 350 block but you will increase compression as the 305 heads have a smaller combustion chamber. The critical dimension is valve clearance. If compression ratio is a critical consideration, different pistons may be available which will bring the combustion chamber back to size. the 305 is from the 3.671 inch bore family. The 350 is from the 4.00 inch bore family. All small block heads have the same bolt pattern.
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
yes
This is a fairly easy swap....and yes it works fine. The only problem you may have is the fuel injection. If you use the 305 injection on the 350 it may not deliver quite enough fuel. Most of the time however, this is not a problem. It will usually compensate for the additional cubic inches. If you do have the 350 injection use it just to be sure.
If you are a good welder, and know how to use a torch you could put a 305 Chevy v8 with Tranny. It just how much time,money, and fit and finish you want to spend on it.
bolt them on their the same
nothing. but the intake will be diff.