SHELBY GT 350 Member
Joined: Sep 2010
Location: see user name
Yes, installing a '99-'04 PI engine is pretty much a direct swap. There's a few little things to adapt, like I'm pretty sure you want to retain your fuel rails and related stuff and I think also your ignition setup, but the other 98.9% should just drop right in. Feel free to do a little searching around here, the subject has been covered lots of times in great detail much better than I could tell you.
2001 GT Convertible
All the usual bolt-on's /200 I6, C4
And a few Explorers too... 2008 4.0 XLT 4x2, 1996 XLT 5.0 4x2, 2003 Sport Trac XLT 4.0 4x4