in my opinion, the series 2 bridgeport is a very nice machine, but not near rigid enough, nor heavy enough in the spindle head for block work.
as has been stated, there are a few things you can do such as fabbing main caps, but for boring or decking, not the machine for the job.
just my opinion as a machinist of 42+ years before retirement.
i would, however, love to have one of those in my shop someday before i croak.