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Head gasket install

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Is it recommended to put any type of sealant on the head gasket? High tack or anything of the sort? New short block, OEM gaskets and rebuilt cylinder heads.



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Some guys will apply copper spray. Most of the old guys in machine shops I've visited have recommended it, and one Subaru master tech has mentioned that he does it on some builds. I've seen it on a motor I pulled apart for someone as well. I've personally never coated a head gasket and haven't had an issue.
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  • 1 month later...
I believe the OEM for turbo engines is a MLS, that's why they use them on NA motors when they replace HG's.

305,000miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.


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