425 HP 383 or 425 HP 454?

[boynton6spd]

In a 67 Impala, what would the driving differences be in a nice 383 stroker small block vs a 425 hp 454?
Want the car to be more of a cruiser, 4spd auto, good low end, but very drivable on the highway...
I have a marine 454 to rebuild, but I'm thinking a Crate 383 w/aluminum head would be cheaper and lighter...maybe just what I need/

Any real-world advise would be apreciated...