I am new here and did a brief search and could not find an answer to my question.

My 1999 Expedition's Triton 5.4l is seized up and I need to do an engine swap. I was wondering, what it would take to swap in a newer 3 valve 5.4l into this vehicle? I now it is a way different engine, but with the choices between an 8-10 year old motor with 75,000+ miles, a rebuilt long block, or a nearly new engine with less than 1,000 miles on it I am at least interested in the possibility. Any info would be great.

 

I would just say get a rebuilt one and stick it in there. That will get you a little warranty as well. You will most likely have to shange harness and PCM if you go with a used motor.

Now, if you are looking to mod it, there are many different configurations to take into account. I am just speaking on workability and ease of change. You already have everything for the reman, and, you KNOW that it will work.

What are your main uses for the truck?

 

What are your main uses for the truck?

I use the truck for towing a travel trailer and general family transportation / trips.

If I go for a rebuilt long block, who would you recommend as a vendor?

 

Yea, I would just say get a reman. Might as well start with ZERO miles on it.

I have heard of people using the FORD reman. Here are 2 links to check for pricing. The first one will give you a very good idea of what it will cost at the dealership.

www.varsityfordparts.com

www.rockauto.com

I have usead NAPA too, but, not with this paticular motor. I know when my 4.6 kroaks I am going to jam a 418 stroker in there. LOL

 

Here are the various options from Rock Auto, and I am unsure of the differences. Two are power improved, one is not. Square intake ports? Any ideas.

MARSHALL Part # F3308C More Info {Remanufactured}
SOHC, NON-POWER IMPROVED, HEAD CAST #F65E, F75E.R CORRECT IDENTIFICATION. (ONLY FOR 1999 - 2001 MODEL YEAR TRUCKS, VANS, AND SUV'S)

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MARSHALL Part # F3309C More Info {Remanufactured}
SOHC, POWER IMPROVED, HEAD CAST #XL3E, 2L1E.R CORRECT IDENTIFICATION. (ONLY FOR 1999 - 2001 MODEL YEAR TRUCKS, VANS, AND SUV'S)

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PROFORMANCE Part # 33056 More Info
SOHC, Pwr Imprvd w/square (NOT oval/round) int ports. Cast iron crank w/8 bolt flnge, 8mm knock sensr hole in liftr vlly. May NOT incl int gskts or water crossover mount set.

 

I'm sure if you call them up, and, give them your VIN # they will be more than happy to help. The VIN will finalise the exact fit. I don't know the difference in them. I just gave you somewhere to get a guestimate price.