Today, dollar for dollar, is the 318 faster than the 340 ???

I wish I had a thread to read when I built my first motor at 19, like the correct way to install freeze plugs.
Maybe you should have picked up a book.
That's how we did it before the net.
I still rely on books rather than the net for things I don't know.
everything was written over 40 years ago by guy's that did it.