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Old Apr 22, 2018 | 02:45 PM
  #1  
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Laughing Gas
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Tap size

Does anybody know the tap size for the head bolts on a 99 F150 5.4 l. thanks
 
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Old Apr 23, 2018 | 10:11 AM
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M11 x 1.50 the bolts are 210mm long, if that matters to you.
 
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Old Apr 23, 2018 | 08:04 PM
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Thanks. I need to tap out the holed before installing the hesds
 
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Old Apr 24, 2018 | 12:11 PM
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Originally Posted by snorindad
Thanks. I need to tap out the holed before installing the hesds
That is definitely an important step that so many fail to do. Not cleaning the head bolt threads can cause premature failure of the head gaskets.
 
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