Not yet.
From website pix of enginebays, the tightness at the shocktower looks very similar. Not sure how powersteering is arranged.
Guess one of us should shoot fordpowertrain an email. How much persuasion do they need to tool up for a 61-63 set? ...or can our birds be persuaded to accept those '65-'66 shorties?
BTY: 64, 65 were 390's only, '66 were 390's and 428's.
Check this site for mech specs for a huge flock:
http://automotivemileposts.com/contentstbird.html