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July 22nd, 2016, 05:39 AM   #1
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Cracked head

I'm rebuilding my fe450 and found small crack inside inlet port on head. Machinist told me that is happening during molding process in factory and nothing to worry about. He showed me few car heads with same type of cracks.
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July 23rd, 2016, 12:01 AM   #2
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yes I have seen this. I don't think it is a problem either.

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July 23rd, 2016, 01:04 PM   #3
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I'm assuming that it is on the intake side. With that being said, I can't imagine that the heat gets bad enough to distort the port.
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July 24th, 2016, 01:29 AM   #4
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I had similar marks to these but after the porting job disappeared, probably not that deep?
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July 24th, 2016, 04:38 AM   #5
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Will leave it like that...
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