I was wondering if anyone has the numbers as far as bore X stroke, and cu. in. for overboring a 454 big block. Lots of people think a .030" over 454 is a "468". My friend bored his 454 .070" and when he did the math, he came up with a 469 c.i.d. Anyone care to straighten this out? I know there's one guy on this message board called "468BigBlock" maybe he can clarify for us?