Head Question?
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This is a discussion on Head Question? within the Everyday Impreza Talk forums, part of the Community - Meet other Enthusiasts category; I have a 2002 wrx that I purchased a used head for off another 2002 wrx. After cleaning I noticed ...

  1. #1
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    Head Question?

    I have a 2002 wrx that I purchased a used head for off another 2002 wrx. After cleaning I noticed the numbers on the head are lhs20 003 the old head I removed is lhs20 005. Visually I see no difference, will this head work. Thanks for any info.

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  3. #2
    OMG WTF MainFrame's Avatar
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    I would assume them both being "lhs" means that you have two left side heads, and no right head.

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    Thanks, I understand what the lhs20 means, I was wondering if there was a difference in the numbers afterwards that would cause them to be incompatible.

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    Moderator Donkey's Avatar
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    Did you purchase just a bare head or a head with valve train?
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    2002 FORESTER S
    1998 FORESTER S




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    I purchased the complete head.

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    Moderator Donkey's Avatar
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    The 02- early 03 2.0L were shim on bucket. The late 03-05 2.0L were shimless valve bucket. That's pretty much the difference.
    Resident Adviser @ WTF Tuning, LLC
    2002 FORESTER S
    1998 FORESTER S




  8. #7
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    What does the 003 and the 005 after the lhs20 mean?

  9. #8
    Moderator Donkey's Avatar
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    Is this a USDM vehicle?
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  10. #9
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    Yes

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