Compression Ignition Addict
Join Date: Feb 2010
Location: Elk Point, Alberta
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I would have to guess that after upgrading your suspension, grille/head light swap and performance mods. That you would be into about the same amount of $$$ as head studs, egr delete, ficm and any high pressure oil system repairs (HPOP, STC fitting, ect...). Then you have a newer truck that is faster off the line (depending on the performance upgrades you do on the 7.3) and gets worse fuel mileage.
If it were me I would spend extra money on getting the 7.3 hp up a bit, dress it up with an 05 front end/grille swap (possibly 08 mirrors and tail gate) and maybe transmission upgrades (torque converter and valve body). In Feb of this month if I could have unloaded my Ex fast enough I would be driving an 02 Ex. Now I am into my 6.0 and will be in it for the long haul and when she does blow up it will be up for a Cummins CR swap!
The 6.0 has its good points and boy does it get up there and MOVE!!! But I have to do lots of extra work (bigger injectors, strategy roll back and slow down on the highway) to get the same mileage as the 7.3. So if you want to make bigger power go with the 6.0 if you want fuel mileage and easy maintenance the 7.3.
2005 Excursion Limited 6.0 4X4
PHP tuned Swamps 58v FICM
Edge Insight CS, with universal 0-100psi sensor for fuel pressure
SCT tunes by Quick Tricks and Gearhead
Sinister EGR Delete and Coolant filtration kit w/Cat EC-1
6.4 banjo bolts
Ford fuel pressure spring kit
High Idle Mod
ARP head studs
Magnaflow 4" turbo back w/muffler
Firestone Ride-Rite air bags
Retro Solutions 55w 4300k digital HID's
Clarion NX500 double din DVD/Nav