Ilmor header question
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Ilmor header question

  1. #1
    Senior Member
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    Default Ilmor header question

    So I have a question the headers on my ilmor is cracked on the inside I guess. Can it be welded?? If not how much are they to replace?

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  3. #2
    The HMFIC HWLaser23's Avatar
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    Doesent ilmor use CMI's contact teague and see what they recommend. Maybe something like that is covered under warrenty.
    BLACK SMOKE DON'T MEAN ITS BROKE

  4. #3
    Senior Member Boss460's Avatar
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    Don't get me started on cracked headers. I've had 3 crack on my Ilmors. None could be repaired according to CMI. Do a google search about CMI header cracks especially on the Mercury 525. It's a major problem.

    Were you one of the "lucky" ones and it cracked on the outside leaking water into the bilge? Buddy had one crack on the inside leading to hydrolock. You can also forget about CMI taking any of the financial blame.

    Also, prepare to have a heart attack when you get the replacement cost. $3,000 for 1 used header (not a set). New, Gen 4 header closer to $10,000.
    Last edited by Boss460; 09-16-2011 at 07:11 AM.

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