What is the bore and stroke of a 357 Chevy?

a 357 Chevy is a just a smallblock 350 Chevy bored .040 over for a total CID of 357, just as one bored .030 is a 355 Chevy.

a standard rebuilt 350 is generally bored out during the rebuild process to usually 355, sometimes 357.

right now i have a 357 Chevy in my 1970 chevelle