1999 5.4

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Dec 14, 2009 | 07:34 AM

MAYHEM4u

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From: nc

1999 5.4

Does anybody know if I can swap a 2004 Expedition 5.4 into a 1999 F-250 LD with a 5.4,auto.I'm not sure if my intake manifold will fit the 04 engine. Thanks in Advance.

Dec 15, 2009 | 07:54 AM

redwood

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From: Pelahatchie, MS

You're gonna have issues with the PCM. I'm not sure about the intake. When I did my swap, I found out quickly that a Expy engine is NOT the same as an F150 engine.....

Dec 15, 2009 | 06:06 PM

LxMan1

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From: Louisville,Ky.

Some are. If it is a 2V engine, you can use the truck intake and exhaust manifolds as long as your original is a PI engine. If it is a 3V engine, that would take a lot of work to convert.

Dec 15, 2009 | 07:14 PM

MAYHEM4u

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From: nc

Thanks for the info.The 04 expy engine is a 2V,and the eighth digit in the vin on the expy is "L" same as mine.

Dec 18, 2009 | 07:53 PM

MAYHEM4u

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From: nc

Update: I now have 2004 Expedition 5.4 engine in my 1999 F-250 LD.Besides the intake,the timing chain cover,oilpan,and r. side exhaust manifold had to be swapped out.Runs great so-far.Thanks to all who replied.

Dec 20, 2009 | 11:45 AM

LxMan1

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From: Louisville,Ky.

Good to hear!!

Dec 21, 2009 | 06:20 AM

torkum

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From: Mount Juliet, TN

Guess the EXPY had the 4R100 trans like your truck.

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Dec 22, 2009 | 10:26 AM

redwood

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From: Pelahatchie, MS

That's cool that you got that unit to work for you. When I did my swap the junkyards kept telling me that the Expy motors wouldn't swap in. I knew there would be PCM issues if the heads were different, but I'm glad to know that the 2V will swap in....

Did you use the intake, the timing chain cover, oil pan, and r. side exhaust manifold off your old engine? Did all of that bolt up to the new motor with no problems?

Dec 24, 2009 | 08:37 PM

#10

MAYHEM4u

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From: nc

Yes,everything off of my 99 5.4 bolted up to the 04 5.4 with no issues.When I bolted up my intake to the 04 engine,I used 1999 gaskets.My old engine has the P.I. heads, so does the 04 engine.The guy at the junkyard also told me that it wouldn't work either.I called a local engine builder and asked about it.He told me that if both engines are 2v motors,that everything would swap out.