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

I always wanted to build a 340 using the 273 forged crank and the 273 rods. All that stuff is way lighter. Mopar Performance even offered the 273 rods as a performance piece for a long time, with good bolts. Those are tough to find now.

Had 3 set of those at one time...MP sold them on ebay for 150 bucks a set...I sold all 3 sets to a board member....