Chevy 302s were not "destroked" they were simply a 283 punched to 301 ----as we called them---done by many a "back yard" hotrodder before Chevy did it out of the box.
I know all about them punched 283s, but the wolf has it right. The DZ302 was a destroked 327 (283 crank). They were also nothing similar to the later 305 or 307. Just sayin.