There wouldn't be enough deck height to get a 6" stroke. The longest I've seen is around 4", and that requires a special block.
A .060" overbore with stock stroke would be about 360 cubes. With 400 crank, it would be 388.
355 is a non stroked just bored 4.030 over 383 on the other hand put a 3.75 stroker crank and bored honed so i would pick 383 . 355 is bored not stroked clearence for stroker crankbest engine would say is 383
First things first. You've defined the bore diameter (4.040"), but not the length of the stroke.
332
That would be called a Chevy 307 bored .40 over.
355
A 262 bored 30 over.
a Chevy 350 bored .060 over would be 360.4 cubic inches
A 427 bored .60 over is 438.8572417 or basically a 439.
a 406 is a 400 bored .30 over
460
4.310
333