You can always stroke the 383 to 496. I’m not sure it is as sexy as saying 505, 512, etc., but I did it in my Demon. 93 octane, 160-180 temps. I don’t dyno anything but the torque alone in just plain fun. I got my set up for $1600 from a machine shop that built th motor for a guy and after hearing it on the run stand his response was that it was more engine than he needed so I bought all the internals.
