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2013-14 Shelby GT500
Stripped exhaust manifold thread
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<blockquote data-quote="railroad" data-source="post: 16812792" data-attributes="member: 13485"><p>Do not use a tap. Use a thread chaser. A tap will cut metal out of the hole. </p><p>Some times the header flange has to be held away from the head surface and the bolt tightened allowing the header flange to move closer as the bolt length goes into the head. Other bolts on the same header will have to be started as the physical spacing allows. </p><p>A stud is a good option. The stud length needs to allow for gasket thickness. Use a steel lock nut.</p></blockquote><p></p>
[QUOTE="railroad, post: 16812792, member: 13485"] Do not use a tap. Use a thread chaser. A tap will cut metal out of the hole. Some times the header flange has to be held away from the head surface and the bolt tightened allowing the header flange to move closer as the bolt length goes into the head. Other bolts on the same header will have to be started as the physical spacing allows. A stud is a good option. The stud length needs to allow for gasket thickness. Use a steel lock nut. [/QUOTE]
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2013-14 Shelby GT500
Stripped exhaust manifold thread
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