Oh dear God! 318 stroker

I imagine if you were to use some of the lightweight aftermarket rods that it may be possible to turn some off the counterweights of the crank if you also lightened the pistons. You’re going to be deep enough in one of these types of of one off niche builds that you may as well go ahead and plan on spending the money to make the rotating assembly as light as possible. But don’t be surprised if someone who spent less than you did to run a four inch stroke 318 gaps you by a couple of car lengths on a run.