Copper RTV
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Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Thanks, I have bought my share of gaskets for that engine with starter failure and valve issues in about 11 years now.
Makes no difference that the Felpro 375-142 has extra holes?????
John
Makes no difference that the Felpro 375-142 has extra holes?????
John
Elder User
Joined: Feb 2006
Posts: 788
Likes: 0
From: Cascade, ID
copper rtv
I have used copper rtv on my headers for about 15 years. They seal up good and the silicone does not get brittle. It is messy to clean up, but how often does one take headers off of a daily driver? I also use it for intake gaskets and pan gaskets and such. works better than the regular rtv.
Laughing Gas
Joined: May 2007
Posts: 960
Likes: 10
From: Victoria (North Saanich)
How exactly did you you use Copper RTV
Barry and Scott - I am going to have to install my 410 with headers this weekend, and I had bad leaks on the 360 I pulled (with the same headers). What would be very useful is if you described the procedure you followed.
Barry - you said you used it with a Fel Pro gasket. Did you follow the usual process of torquing them and then heating the engine and re-troquing?
Scott - sounds like you just used the Copper RVT. Is that the case, and if so, do you follow the same procedure you would if a gasket was present?
We need details!
Barry - you said you used it with a Fel Pro gasket. Did you follow the usual process of torquing them and then heating the engine and re-troquing?
Scott - sounds like you just used the Copper RVT. Is that the case, and if so, do you follow the same procedure you would if a gasket was present?
We need details!
Elder User
Joined: Feb 2006
Posts: 788
Likes: 0
From: Cascade, ID
procedure
Barry and Scott - I am going to have to install my 410 with headers this weekend, and I had bad leaks on the 360 I pulled (with the same headers). What would be very useful is if you described the procedure you followed.
Barry - you said you used it with a Fel Pro gasket. Did you follow the usual process of torquing them and then heating the engine and re-troquing?
Scott - sounds like you just used the Copper RVT. Is that the case, and if so, do you follow the same procedure you would if a gasket was present?
We need details!
Barry - you said you used it with a Fel Pro gasket. Did you follow the usual process of torquing them and then heating the engine and re-troquing?
Scott - sounds like you just used the Copper RVT. Is that the case, and if so, do you follow the same procedure you would if a gasket was present?
We need details!
Logistics Pro
Joined: Mar 2005
Posts: 3,771
Likes: 80
From: tujunga, calif
For what it's worth, I've used REMFLEX gaskets with nothing but good results.. No goop needed
http://remflex.com/
http://remflex.com/
Elder User
Joined: Jun 2009
Posts: 511
Likes: 1
Barry and Scott - I am going to have to install my 410 with headers this weekend, and I had bad leaks on the 360 I pulled (with the same headers). What would be very useful is if you described the procedure you followed.
Barry - you said you used it with a Fel Pro gasket. Did you follow the usual process of torquing them and then heating the engine and re-troquing?
Scott - sounds like you just used the Copper RVT. Is that the case, and if so, do you follow the same procedure you would if a gasket was present?
We need details!
Barry - you said you used it with a Fel Pro gasket. Did you follow the usual process of torquing them and then heating the engine and re-troquing?
Scott - sounds like you just used the Copper RVT. Is that the case, and if so, do you follow the same procedure you would if a gasket was present?
We need details!
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Cargo Master
Joined: Jul 2006
Posts: 3,014
Likes: 91
From: Concord, CA
Hi John. I just used the Copper RTV on my stock manifolds and it is still setting up. I will fire it up tonight. It is very thick and I liked the application. I have a thread ""exhaust mainfold improvement"". I will let you know.
The jerks at the auto stores act like it is from mars. I asked an application question and was berated for being a stupid idiot. " You can't use RTV on exhaust manifolds, come on buddy" then I asked him to read the package "For exhaust manifolds" then he says " no real mechanic uses that crap" As I started for the door I said "must be why your working here" I think its good stuff but tonight I will light er up.
The jerks at the auto stores act like it is from mars. I asked an application question and was berated for being a stupid idiot. " You can't use RTV on exhaust manifolds, come on buddy" then I asked him to read the package "For exhaust manifolds" then he says " no real mechanic uses that crap" As I started for the door I said "must be why your working here" I think its good stuff but tonight I will light er up.
Senior User
Joined: Sep 2005
Posts: 359
Likes: 1
From: Saint Paul, MN
On my 390 with stock manifolds the gaskets kept leaking. I tried the factory style with the metal on one side and also the paper ones. They all leaked. The Mr. Gasket copper gaskets with Grade 8 bolts and copper anti-seize on the bolt threads worked without any leaks. I now have Hooker headers and they have special gaskets. No leaks. I have used all different colors of RTV on gaskets but never on the exhaust manifolds.
More Turbo
Joined: Aug 2002
Posts: 537
Likes: 17
From: Linden USA
When we used to run the old style thin flange headers we used to go through header gaskets on our 390 fairly often. We started using the copper RTV on the header side only and it made them hold in place and last much longer.
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