Pug 404 cylinder head identification
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Thread: Pug 404 cylinder head identification

  1. #1
    Fellow Frogger!
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    Default Pug 404 cylinder head identification

    Guys,

    how can you tell what model this cylinder head belong to?

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  2. #2
    1000+ Posts Dano's Avatar
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    Peugeotnut,

    Hope this is helpful.

    If you'd like a digital version of the parts manual, send me a PM with your postal details.

    Cheers,

    Dano

    Click image for larger version. 

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  3. #3
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    A view of the inlet side would be helpful.
    It is probably for an xc7 1972 model, looking at the date Cast on the head.

    Quote Originally Posted by peugeotnut View Post
    Guys,

    how can you tell what model this cylinder head belong to?

    Click image for larger version. 

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  4. #4
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    Graham.... sadly I did not snap a picture of the inlet side.

    I'm trying to avoid opening my 404 head just to check compatibility.

  5. #5
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    Quote Originally Posted by GRAHAM WALLIS View Post
    A view of the inlet side would be helpful.
    It is probably for an xc7 1972 model, looking at the date Cast on the head.
    it's stamped XM.
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  6. #6
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    Quote Originally Posted by 2pac View Post
    it's stamped XM.
    Yes, the later 404 heads are stamped XM for some reason, maybe they share the casting withe the 504 1.8 heads.

  7. #7
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    Quote Originally Posted by GRAHAM WALLIS View Post
    Yes, the later 404 heads are stamped XM for some reason, maybe they share the casting withe the 504 1.8 heads.
    It looks like an 1800 head - the inlet manifold area (what little can be seen) suggests that the inlet manifold has four mounting bolts ( the casting lugs for the two bottom inlet manifold mounting bolts are visible) hence 1796 cc head. A picture of inlet manifold side of head should confirm possibly.

    JohnT

  8. #8
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    my 2 cents worth..
    3 bolt or 4 bolt inlet as above?

    also 3 or 4 welsh plugs on the inlet side?

    I have a head with XC7 cast in - 4 welsh plugs & I believe that to be from a 71 or later

    also the oil & water journals vary slightly from different years - if you can sit a head gasket on it this will help ID it.

  9. #9
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    Guys,

    Thanks for all the inputs.

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