Not sure if a choice has been made, but I can attest to a 383, I own one and its the best "street" engine I've had for a big block.....I'm planning to do "cheap" upgrades over time, not all at once, my first added item is a nice set of headers at some point....I got to get some cash up first so.... Mine however is in my truck....which is the only "Mopar" I currently got...I have ta say the short stroke, is GREAT in high RPM running (highway stuff) so......