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Thread: Chunk of head missing

  1. #1
    Join Date
    Nov 2017
    Posts
    19

    Chunk of head missing

    As i was looking over the cylinder heads from my 91 SC I noticed a small chunk of the head missing/broken out. Is it possible that it was a crack at one point that broke open? It still looked as if the head gasket on this engine cylinder was sealed off before reaching the crack so I cant imagine it was a detonation issue. I would venture to say this head is unusable at this point. Any experts that have seen a thing or two with these motors care to weigh in?
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    Last edited by Jeffg302; 04-14-2019 at 11:32 AM.

  2. #2
    Join Date
    Oct 2018
    Location
    Nova Scotia, Canada
    Posts
    22
    It might have been porosity in the casting in that spot. It can be repaired by just a bit of welding and then resurfacing the head. I would get it crack tested too before attempting any repairs to it.

  3. #3
    Join Date
    Aug 2007
    Posts
    111
    JB weld then test it

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