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Cylinder head conversion ?

Discussion in 'XJ Technical Chat' started by jesse8931, May 7, 2014.

  1. jesse8931

    jesse8931 Member

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    Would it be possible to convert a ycis motor to a non ycis motor with a non ycis head ?
     
    jesse8931, May 7, 2014
    #1
  2. Polock

    Polock Well-Known Member

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    Why?
     
    Polock, May 7, 2014
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  3. jesse8931

    jesse8931 Member

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    Why not, No reason really just curious if anyone has done it.
     
    jesse8931, May 7, 2014
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  4. Polock

    Polock Well-Known Member

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    Oh I see, does it have to run ?
     
    Polock, May 7, 2014
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  5. Polock

    Polock Well-Known Member

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    Oh I see, does it have to run ?
     
    Polock, May 7, 2014
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  6. Thrasher

    Thrasher Member

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    Yes
     
    Thrasher, May 7, 2014
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  7. Polock

    Polock Well-Known Member

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    no
     
    Polock, May 7, 2014
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  8. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    I believe it is as long as everything from the head gasket on up is from the same style, including matching carbs, etc.....
     
    hogfiddles, May 7, 2014
    #8
  9. Orange-n-Black

    Orange-n-Black Well-Known Member

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    It is possible to plug the YICS, at least mostly. I plugged mine with a 3/8ths steel rod to deal with combustion issues due to the 2 carb mod I did on my 700Max.
     
    Orange-n-Black, May 7, 2014
    #9
  10. chacal

    chacal Moderator Moderator Supporting Vendor Premium Member

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    Polock wins.

    The non-yics heads use a different mounting stud(s) configuration (head-to-jugs) than the yics heads, so........Just Say No.
     
    chacal, May 7, 2014
    #10
  11. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Oops..... I forgot to mention you have to swap the whole rest of the engine, too.
     
    hogfiddles, May 7, 2014
    #11
  12. Kickaha

    Kickaha Active Member Premium Member

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    Easy to convert a YICS to non YICS with the 550, you just use a 600 head, so yes it can be done and quite easily on that particular model
     
    Kickaha, May 8, 2014
    #12

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