What year or years is best for the 5.4 dohc lincoln navi motors? Also wondering what the trq/hp numbers are?
thanks.

 

any one you can get cheap !!!!!!!!!!!!!!!!!!!!!!!!!

 

I think certain years are the best for hp/trq like early 2000's. 1999-2003 I am thinking, but not sure.
Thanks.

 

i would say the later models have more power

 

From Wikipedia
Vehicles equipped with the 32-valve DOHC 5.4 L include the following:

* 1999–2004 Lincoln Navigator, 4-valve DOHC, 300 hp (224 kW) and 355 lb·ft (481 N·m)
* 2000 Ford Mustang SVT Cobra R, 4-valve DOHC, 385 hp (287 kW) and 385 lb·ft (522 N·m)
* 2002–2005 Ford Falcon XR8, 4-valve DOHC, 349 hp (260 kW) and 369 lb·ft (500 N·m)
* 2005–2006 Ford GT, 4-valve DOHC, Aluminum block, Supercharged, 550 hp (410 kW) and 500 lb·ft (678 N·m)
* 2006 Ford Falcon FPV GT, 4-valve DOHC, 389 hp (290 kW) and 384 lb·ft (521 N·m)
* 2007–2009 Ford Shelby GT500, 4-valve DOHC, Supercharged, 500 hp (373 kW) and 480 lb·ft (651 N·m) SAE J1349 certified
* 2007 Ford Falcon FPV GT Cobra, 4-valve DOHC, 405 hp (302 kW) and 398 lb·ft (540 N·m)
* 2008 Ford Falcon FPV GT, 4-valve DOHC, 422 hp (315 kW) and 406.5 lb·ft (551 N·m)
* 2010 Ford Shelby GT500, 4-valve DOHC, Supercharged, 540 hp (403 kW) and 510 lb·ft (691 N·m)
* 2011 Ford Shelby GT500, 4-valve DOHC, Aluminum block, Supercharged, 550 hp (410 kW) and 510 lb·ft (691 N·m)

 

Depending on what you want to put it in I'd suggest looking into DOHC 4.6L's, the Navi engine had a pathetic torque curve considering they are in a truck chassis. AFAIK there were no differences between the different model years, but if Ford did discover a problem early on they would have fixed it by '03 or '04.