318 4" bore 3.58" stroke(360)

ir3333 said
a lot of us guys don't like to hear this but that combination has been the Corvette main base engine for a long time.
3.90 bore / 3.66 stroke....

It's not the same combination.
4.00 - 3.90 = .100 difference
3.66 - 3.58 = .08 difference
While not a lot of difference in your hand, it is a lot, a real lot in car terms and machining.
You like to post this. Perhaps a Chevy is more your speed? LMAO