Can a 318 crank and rods be used in a 340?

Thank you all so much for your input and knowledge everyone. Just wanted to see if I can save some money on the engine build. I am using the Upper half of this 318 which is a nice Eldelbrock Carb and Manifold and M/T covers. I just like to have a nice sounding engine, with some balls when you punch it. Growing up in the 60's and 70's, these 340 dusters either automatics or Manuals really were pretty potent right out of the factory in my opinion.
Thanks Richie