How many different Chevrolet engine sizes are there?

There are tons,200, 230, 250 262, 265, 267, 283, 273, 302, 305, 307, 350, 327, 348, 350, 366, 383,377,396, 400,409,427, 454.

There is also the Chevy 572.

The 383 and 377 are stroker engines