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New Edge Cobras
Swapping heads 99 cobra
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<blockquote data-quote="DSG2003Mach1" data-source="post: 16178244" data-attributes="member: 16477"><p>1) dont use steel inserts in an aluminum head, they have aluminum inserts, use those</p><p></p><p>Personally, I'd just have your current threads fixed with lock n stitch or time certs (both have mechanical means to prevent the insert from backing out unlike a helicoil). If the car is higher mileage then might be a good idea to do valve seals etc... This is what we did on my car when building motor, and it's supposed to have been built with 25psi in mind.</p></blockquote><p></p>
[QUOTE="DSG2003Mach1, post: 16178244, member: 16477"] 1) dont use steel inserts in an aluminum head, they have aluminum inserts, use those Personally, I'd just have your current threads fixed with lock n stitch or time certs (both have mechanical means to prevent the insert from backing out unlike a helicoil). If the car is higher mileage then might be a good idea to do valve seals etc... This is what we did on my car when building motor, and it's supposed to have been built with 25psi in mind. [/QUOTE]
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