YJ 93 4.0L HO or non-HO ? - Jeep Wrangler Forum
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Old 07-01-2007, 03:49 AM   #1
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YJ 93 4.0L HO or non-HO ?

hello,

a friend has a 93 YJ 4.0L and wants to order some parts.
is it a HO or a non-HO? i think it must be a HO, am i right?

thanks for your help.
nicolas-eric


btw. like this looks an engione after it runs to long with too much water in the oil after driving through too deep water:


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Old 07-01-2007, 10:14 AM   #2
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I have a 94 high output and it says it right on the back under the 4.0L badge... so i would say if it doesnt say it, it isnt. ::shrugs::

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Old 07-01-2007, 02:33 PM   #3
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i do beleive all 4.0 are high output, i think they changed something in the head to make it 4.0. it is the same block as the 4.2. id say yes it is ho
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Old 07-02-2007, 04:12 PM   #4
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H.o.

4.0 from 92 and up are H.O. From 92 and lower they are just normal 4.0s
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Old 07-05-2007, 01:05 AM   #5
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If I recall right, it's the 4.0L, fuel injected, engine that is the HO.
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Old 07-06-2007, 10:36 PM   #6
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All 4.0 engines in Wranglers are H.O. since first introduced in the '91 model year. Prior to that, the engine was a 4.2 and did not have the H.O. designation.

H.O. was a designator given by Jeep to denote the difference between a 4.2 engine and a 4.0 engine... nothing more.
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Old 07-09-2007, 03:31 PM   #7
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dang

^ he's Right I was thinking cherokee
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Old 07-09-2007, 04:02 PM   #8
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Quote:
Originally Posted by HkdOnJP View Post
^ he's Right I was thinking cherokee
Yes you were.

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