Why the overbore from 396 to 402

[camarojoe]

I've heard stories about the 71 Heavy Chevy Chevelles, and that depending on what transmission you ordered along with the 400 engine, you would either get a 402 big block or a 400 small block, and both were called "400" on the order sheet... I don't know if that's fact or fiction, but wouldn't it be a bummer if you and your buddy both ordered 400s and he got a big block and you got a small block? [img]/ubbthreads/images/graemlins/blush.gif[/img] That would be my luck! Anyone ever hear of this? [img]/ubbthreads/images/graemlins/dunno.gif[/img]