440 Crank in a 383

rumblefish360 said

Sometimes, you just work with what ya got.

Going with the 440 crank alone makes it a 425.59, might as well round it up to 426.
4.15 crank is a 470.98
4.25 crank is a 482.33

Any stroking is a good move for power. I liken the 383 to a big small block with the engines short stroke.

Click to expand...

.... and you get 489 with the typical. 030 overbore with the 4.25 crank, and 496 with a +.060.
Edit: almost forgot.... get the stroker kit (whichever size crank) with the bbc crank pin. Better rod selection, less grinding at the bottom of the bores for clearance, much lighter piston/piston pin.
Lighten the reciprocating assy enough, and it will still rev like a 383......