Where are you located? Are planning on doing all the work yourself?
the excursion i have is a 2003. just did a quick search an the 5.4 came with the 4speed (4R100) from ford as the 5speed wasn't an option unless you got the diesel or if it was a later model excursion after 2003. hence the reason i am thinking this because it would be cheaper to do the swap then try and find a diesel excursion as i need a family SUV that is capable of pulling a trailerwhat year ex? and what tranny came with the 5.4l?
sounds like a worthy swap.
i'm having a little bit of a hard time trying to find a 12-valve but have found alot of 24-valves that i can get for a very good price. as far as transmission goes, i just had it rebuilt as the torque convertor and valvebody went out and had the trans gone through and rebuilt/upgraded with better parts so i'm not worried about that, if it blows its still under warranty and i'll just have them rebuild it again.I've been thinking about this swap if I ever buy a Ford.
A 12-Valve would be the most simple. JPscustoms runs one in his. I run a 24-Valve and it's simple as there is little wiring to worry about. There are a few guys on here that Common-Rails and they have awesome rigs. EB.Bldr and Robts both have CRs.
The transmission in the Ex now will determine whether or not you want to use it. Most will recommend just switching to a 48RE. I'm putting an Allison in my Chevy.
Destroked makes great parts.