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-   -   help with f150 4x4 (https://www.f150online.com/forums/1997-2003-f-150/520300-help-f150-4x4.html)

Thomas Humphrey 02-09-2019 10:06 PM

help with f150 4x4
Wanting to know what I have to do to switch from the 97 aluminum intake manifold to the 2 piece plastic on 03. Motor blown today on 97 and have a great running 03 2 wheel. Going to put stainless steel exhaust manifold on.

glc 02-09-2019 10:11 PM

What engine is in the 97 and what engine is the 03? What is the 03 engine out of?

Thomas Humphrey 02-09-2019 10:16 PM

I'm sorry it's a 4.2 v6. In both trucks. Having a bad day and been on internet looking for answers

ManualF150 02-09-2019 10:46 PM

glc can correct me if I'm wrong, but wouldn't the aluminum intake be better with the updated gaskets?

My '99 had the aluminum intake with the updated gaskets and it ran like a top.

glc 02-09-2019 11:06 PM

You should be able to do a direct swap keeping the manifolds on the 03.

Thomas Humphrey 02-09-2019 11:09 PM

I was just going with the stainless exhaust because of rusted studs and to do a better flow exhaust

Thomas Humphrey 02-09-2019 11:12 PM

There is an older post on here that the guy claims that the plastic top had a better runner design and there for a flatter curve on the performance of engine

glc 02-10-2019 10:02 AM

That's what I'm saying - keep the 03 intake on the 03 engine.

ManualF150 02-10-2019 10:04 AM

Ahh, ok. I see. Better performance. Then go for it!

Thomas Humphrey 02-10-2019 01:28 PM

Originally Posted by glc (Post 5247192)
That's what I'm saying - keep the 03 intake on the 03 engine.

next question is am I able to use the complete harness from the 03 and just plug into the connection on truck. They look pretty much the same. With my research I found that the lower intake manifold are the same. Only difference is the aluminum top on 97 and the 2 piece plastic on the 03.

bobwhitecar 02-12-2019 06:41 AM

I would look at all the sensor plugs to see if they are the same, I would be surprised if it was a direct fit

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