Cometic Question

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Sep 12, 2005 | 09:27 AM

89lx-ls1

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From: TN

Cometic Question

I know this is a pretty big subject but just asking,
Spray the head gaskets with copper spray or not??

Thanks in advance.

Sep 12, 2005 | 10:16 AM

89lx-ls1

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From: TN

ttt>>>>>>>>>>

Sep 12, 2005 | 10:27 AM

CAT3

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I think I will be spraying mine, first time to install them and dont want to have to do it all over again.....call me "internet hype on Cometics leaking scared."

Sep 12, 2005 | 10:33 AM

as35thss

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I would spray them. I sprayed mine, with no problems. You take a big chance if you don't.

Sep 12, 2005 | 11:20 AM

smask04C5

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From: Winter Haven, Fl.

lightly sprayed mine, no problems

Sep 12, 2005 | 11:21 AM

Mirek

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No spray, no problems.
OEM headbolts.

Sep 12, 2005 | 11:34 AM

89lx-ls1

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From: TN

So 3 spray and 1 no spray I guess I will spray mine and I am also using arp studs.

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Sep 12, 2005 | 12:13 PM

bigdsz

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If the Cometics are not sprayed supposedly they are reusable, which I think some would question. Sprayed, not reusable.

Sep 12, 2005 | 12:46 PM

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ArcticZ28

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Quote:

Originally Posted by bigdsz

If the Cometics are not sprayed supposedly they are reusable, which I think some would question. Sprayed, not reusable.

They actually are reusable even if you sprayed them, a lot of people have reused em. The only downside to spraying them is cleaning the crap off the mating surfaces each time you take the heads off and put em back on to get a good seal. If you don't foresee that happening too much, then go ahead and spray them. But, if you are gonna be pulling them frequently, might as well try it without spraying b/c you're gonna be pulling them a lot anyways so it can't hurt. I personally sprayed mine the first time and haven't had any problems. I played it safe b/c I didn't see my heads coming off anytime soon. Up to you though.

Sep 12, 2005 | 06:34 PM

#11

LS1 Swapper

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Make sure you really clean the block and heads of the old gasket, I mean with a razor or you'll probably leak. Also make sure you put them on correctly. No sealant is needed or recommended.

Sep 12, 2005 | 09:10 PM

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S10xGN

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From: Port Neches, TX

Billy Anderson over on Turbobuick.com (who builds 8 second turbo regals) says his first install is dry, and he reuses up to four times with the reuses being sprayed with a light coat of Hylomar.

Sep 12, 2005 | 09:37 PM

#13

ArcticZ28

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From: Alexandria, VA

Well using them a 3rd time with spraying is like using them the first time with spraying. So, that just proves you can do it either way, but if you want to play it extra safe, then spray it. They are reuseable both ways.

Sep 12, 2005 | 09:44 PM

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2001 Pewter WS6

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Quote:

Originally Posted by Mirek

No spray, no problems.
OEM headbolts.

Ditto here...

Sep 13, 2005 | 03:54 PM

#15

Dixit

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I didnt spray mine and they are leaking slightly which Im removing the heads again this week to probably just ditch the Cometics and go back to GM MLS gaskets.

Dixit