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

Larry Shepard-the 273 - early 318 rod is 726 grams, I got 721 grams. Larry shepard-the 340- later 318 rod is 758 grams, I got 752 grams. I like blueprinted mopar rods with hi po bolts-made in USA. low priced aftermarket rods-made in china?-not so much. If U go with cheap aftermarket rods have them magnafluxed or zyglo or x-rayed tested before going high revs. I have never had a problem with tuned up 340 rods in 30 years to 7000 rpm