4.0 - cast exhast or tube headers?

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01-30-2017, 02:52 PM

Slackdaddy

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Model: Cherokee

4.0 - cast exhast or tube headers?

Pulling apart the 94 that a tree fell on,, I noticed the exhaust manifold is a "tube header" not a cast iron manifold I was expecting.
Did the 4.0 (94) come stock with "tube manifold" or cast ?

Slack

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01-30-2017, 03:26 PM

diskman

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Year: 1999

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Engine: 4.0L

Tube.. Plain ol thinwall tubing.

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01-30-2017, 03:29 PM

extrashaky

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Year: 2000

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Engine: Golen 4.6L

They were tubes up through '99. The 2000 and 2001 had two piece cast iron manifolds, one for cylinders 1-3 and another for 4-6.

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01-30-2017, 04:07 PM

CCKen

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Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by extrashaky

They were tubes up through '99. The 2000 and 2001 had two piece cast iron manifolds, one for cylinders 1-3 and another for 4-6.

Edit: Entered in error.

My exhaust manifold is welded tube construction.

Last edited by CCKen; 01-31-2017 at 05:30 AM.

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01-30-2017, 05:08 PM

extrashaky

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Quote:

Originally Posted by CCKen

My '99 has a cast exhaust manifold.

I stand corrected.

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01-31-2017, 05:31 AM

CCKen

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Quote:

Originally Posted by extrashaky

I stand corrected.

No you're not. I revised my post.

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01-31-2017, 03:54 PM

nujeepguy

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Year: 2000 and 1998

Model: Cherokee

Engine: 4.0

Quote:

The 2000 and 2001 had two piece cast iron manifolds, one for cylinders 1-3 and another for 4-6.

wonder if that contributes to the cracked head??

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4.0 - cast exhast or tube headers?

4.0 - cast exhast or tube headers?

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