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Upper Intake (Plenum) Gasket?


Rearanger

Well-Known Member
Joined
Feb 4, 2008
Messages
1,429
City
Southeast USA
Vehicle Year
2003
Transmission
Manual
Going to remove injectors and need to remove the upper intake manifold.

Looking at gaskets and see two types. A flat one piece fiber or three double o-ring style that go in separately in pairs.

I'd prefer the o-ring style as they are Fel-Pro but I'm not sure how they stay in position as the intake is re-installed. Is there a groove in the lower manifold or upper manifold to hold them?

Thanks
 
The plastic upper intake (1995+) uses the rubber oring style, the aluminum (Pre 1995)uppers use the flat phenolic/paper style.

The oring style fit inside of grooves in the plastic, you will need to remove the old ones with a small screw driver or pick...they will be hard as a rock and come out in pieces.

EDIT:.......I was thinking 4.0...but the 3.0 is the same concept I believe.
 
Last edited:
The plastic upper intake (1995+) uses the rubber oring style, the aluminum (Pre 1995)uppers use the flat phenolic/paper style.

The oring style fit inside of grooves in the plastic, you will need to remove the old ones with a small screw driver or pick...they will be hard as a rock and come out in pieces.

EDIT:.......I was thinking 4.0...but the 3.0 is the same concept I believe.

Yeah, this is correct, but with a minor change to the years. The aluminum upper intake manifold was used through late 2000/ early 2001. After that, it was the plastic upper.
 

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