318 Connecting Rods and Crankshaft

You won't have any clearance issues with a 3.58 stroke.

I'd use a 360 crank turned down to fit. Good American steel.

Stock rods are tuff...more good steel. One of my engine shops is Chevy oriented but he admits he's never seen a failed crank Mopar crank that wasn't caused by another part.

All this rod/stroke talk is meaningless in your application IMHO.

Have fun.