Ferocity02

iTrader: (60)

I was just curious if this is necessary, or a good idea? That's all, thanks!

SteveDoten@ARH

I've never done it

I'd like to know where this idea comes from?

lt1formula2000

iTrader: (10)

I sprayed some on mine, and I haven't had any problems. I did it because I had a can(spray can,not bottle/brush) laying around, from a couple 5.0 builds we did.

KingSS

iTrader: (1)

Just another way to provide some extra seal. I think some people do it on MLS gaskets just to make sure they seal correctly on the whole deck surface.

Ferocity02

iTrader: (60)

The reason I asked is because the stock gaskets are of a different material and appear to be much softer than the aftermarket MLS gaskets out there. I have a can of copper spray lying around so I guess I'll use it, it worked great with my Cometics.

DanZ28

iTrader: (5)

Never used it either. All my gaskets have done there job, but if you have some imperfections on the head or block deck, probably not a bad idea to spray some on there.

Dan

allngn_c5

iTrader: (3)

I guess I'll be spraying my Cometics when they get put on in March. The first set without spray wouldn't seal so GM Performance were used and they failed after about 4000 miles or so. 2800 + relatively hard driving miles. LOL, you've seen my vids ....

SideStep

Steel or composite gaskets???

I have always spray copper sealant on my steel gaskets (Cometics) and have not had a leak yet....

Mikey 97Z M6

iTrader: (37)

Back when I had my DSM, some of those guys swore by that stuff when running over 17psi boost. Helped in the prevention of pushing oil into the coolant @ boost. I used it on my DSM when I replaced the head gasket, and it worked great at 17psi on pump fuel. BTW, I was using a MLS gasket on my DSM when I used that copper spray......

Don't know of anyone that has used it on an LSx though.....

Mike

GuitsBoy

iTrader: (4)

The GM MLS gaskets already have a black viton rubber coating. I didnt bother spraying copper on mine.

ArcticZ28

iTrader: (14)

Spraying the stock gaskets would be a bit of overkill. The only reason I ever use copper spray is for my cometics, and that's just to play it safe. A lot of people don't spray them and they still seal like a charm.

Ferocity02

iTrader: (60)

I mounted the heads about 30 minutes ago with copper spray on the gaskets. If they leak then I will probably shoot myself.

ArcticZ28

iTrader: (14)

Haha, there's no way those things are going to... don't mean to jinx ya though

Moparnos (The SLP Guy)

iTrader: (55)

it wont leak we used that spray on copper gaskets on a blown stang before and no leaks.

1320 killer

iTrader: (6)

Not too sure but from what I was told is that it is good to use on a mls gasket and anything more than 11 to 1 compression. I used it on mine and it is holding pretty well (knock on wood)

LS1MCSS

iTrader: (18)

What is the actual name of the copper spray and who makes it? I am swapping heads and cam this winter and plan on using cometics. My car isn't a dd but I don't want problems when I do drive it.

The Alchemist

iTrader: (19)

I'm guessing it is a common thing found at any auto parts store. I'm going to be switching to cometics as well this winter and will spray them just to make sure everything works out as planned.

ArcticZ28

iTrader: (14)

Permatex makes it.

Moparnos (The SLP Guy)

iTrader: (55)

yep permatex any auto store should have it