Wish I could update on this subject. Whenever I find out anything ill be sure to let you know. Last I heard was fords been testing series of engines for the high powered boss. One of which was a 5.8 engine exceeded 600hp. Eariliest production of something like this is 2010 or 2011. I posted this long ago on this subject. I just hope ford makes it through everything. Both my grandpas retired from Ford and my dads looking to retire now in June.