[SVO460]

Before you throw a hissy fit.. I just got here.
You also conveniently omitted (an attempt at deception??) the intake manifold weight difference which incorporated about 1/3 of the FE's head. You also omitted the deep skirt design of the FE's, and your comparing a stronger SVO block rather then a production block.
I find it hard to believe with more modern casting techniques, better engineering designs that Ford would have taken a step back for the FE replacement.
BTW what special SVO catalog do you have? I looked in my SVO catalogs going back to '95 and don't see any block weights for a single iron block and absolutely no '385' block, only the aluminum 351 at 136 and 127 lbs and the 302 at 97 lbs.