# Cometic - Yay, or Nay?

**URL:** <https://forums.speedlife.net/t/cometic-yay-or-nay/131119>\
**Category:** SON240sx Automotive\
**Created:** [January 27, 2010, 3:52pm UTC](https://forums.speedlife.net/t/cometic-yay-or-nay/131119 "2010-01-27T15:52:25Z")\
**Posts on this page:** 1\
**Showing post:** 17

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**Author:** ![87s15lt1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/87s15lt1/32/5706_2.png) [@87s15lt1](https://forums.speedlife.net/u/87s15lt1)\
**Post date:** [January 28, 2010, 1:36pm UTC](https://forums.speedlife.net/t/cometic-yay-or-nay/131119/17 "2010-01-28T13:36:21Z")

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> [@OFFICIAL Buffalo Sabres Thread](https://forums.speedlife.net/t/official-buffalo-sabres-thread/25170/3465):
>
> Ive used the cometic on my sr, and re-used it no problem no leaks. Never machined the block or head just cleaned it well and used the copper spray.
> 
> my new motor has a metal head gasket and has a good seal, no leaks. not sure what HG it is but it works.
> 
> If i were to be in the situation again to do a head gasket id just go oem with arp’s hands down. Unless your really pushing the boost…i dont see a point its so much easier to prep the head/block for a oem gasket and know its going to seal rather than crossing fingers with a cometic.

That keeps going through my head now too.  
I don’t have plans for big boost any time soon. Yet, in the future…who knows?

So why not get a MHG now? I’ve done lots of composite and metal head gaskets. NEVER decked the block…ever. Head ALWAYS gets machined to a near mirror finish though.

I am gonna talk to my engine guy in depth about this. He laughs because it’s all gravy to him. Yet, this is serious to me lol. I will NOT do this job twice. Even if the HG costs $500. If it’s 100% going to work. I would buy it over any other 99% gonna work.

Keep the advice and idea’s comin guys!!!

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