We used Hemi rods with a forged 383 crankshaft in a 400 engine with a shelf piston. That worked but these days I'd just buy a semi-custom piston rather than jury rig something.

I also doubt that I'd ever use a Mopar connecting rod again. Might as well use a Chevy 6.70 or a 6.80 rod. The Chevy rods are less expensive and tend to be higher quality since they are built in much higher volumes. You do have to grind the crank journal down. Another benefit is that with the Chevy rod you have a much wider selection of bearings to pick from including various undersizes and chamfer options.