excuse me? Lets clear this up once and for all. A standard 400 bore is 4.342". A standard 440 bore is 4.320". So, how in the hell can a .020 over 400 have the same bore as a standard 440 when it's already bigger to begin with? Some of yall really need math lessons. Bad. The 400 has the biggest bore of all the big blocks. Period.
