Copper Gasket Spray

[michael.konor]

With the exception of my 3V builds, I always used Copper Gasket Spray when installing the heads on my engines. For some reason, I never did it on the 3Vs. So, I did a search here, but very vague references to using this product.

Who's using it? Any benefits to 3V's beyond heat transfer since I'm already using Cometic Head Gaskets and ARP?

 

[dysan]

I used it on mine but I also went with Felpro gaskets since I haven't heard good things about the Cometic gaskets on the 3V.

As far as benefits, I can't really say.

 

[Redrocket06]

I was told not to use it on my build. Just besure you have flat clean surfaces and use a new factory gasket set. Lots of guys making big power are using the GT500 gaskets, they are thicker than the 4.6 3v ones. I used the 4.6 3v ones so I didnt lower cr. And I would say no benfit with what you have now.

 

[BruceH]

I've swapped heads a few times and never used it. The Ford manual is very specific about not using it. The only gaskets I've heard of that would leak without it were Cometic that were specially ordered for thickness. I suppose it would also be a good idea if your machine shop doesn't own a profileometer.

FRPP has three vendors for the head changing kits. Fel-Pro, Cometic, and another I can't think of right now. I've used Fel-Pro and the one I can't think of and never had any leaks. The highest I've ever boosted was 19psi though.

Do you have a build planned or are you just thinking up stuff in Afganistan? Thanks for being there.

 

[lee12609]

i was always told NOT to use it on MLS gaskets so i stuck with that.

i have used hylomar though, with very good success.

 

[michael.konor]

Do you have a build planned or are you just thinking up stuff in Afganistan? Thanks for being there.

I've got a few things in mind here since during the downtimes, there's plenty of time to think. The Copper Gasket spray popped into my mind.

 

[TurboX]

Whats the deal on Cometic gaskets ? Cometic are the only game in town for 3.7 bore, kinda sucks if they are known to have issues.

Sorry to derail the thread

 

[DILYSI Dave]

Never used it. Never had headgasket issues.

 

[BruceH]

Whats the deal on Cometic gaskets ? Cometic are the only game in town for 3.7 bore, kinda sucks if they are known to have issues.

Sorry to derail the thread

I only mentioned something Livernois had posted a few years ago. They had problems with the custom made thin cometic gaskets developing leaks so as a precaution they sprayed them with copper during assembly. I would think that the gaskets in the Ford Racing big bore boss head changing kit would not have an issue. Nobody has ever reported one anyway.

 

[michael.konor]

So far, I'm getting the impression that we don't really need it, but that using the spray won't cause a problem?

 

[Speed+Clinic]

I'm using stock gaskets. Are people blowing the stocker???

 

[Department Of Boost]

I'm using stock gaskets. Are people blowing the stocker???

The consensus seem to be that stock gaskets are good to 27-28psi when used with head studs.

I was told that there is a coating already on the stock head gaskets that does exactly the same thing as the copper spray. Same thing with the OEM exhaust gaskets.