|
Header gasket
I’m replacing the header gaskets on my LS7 with kooks headers. It had the stock GM gasket previously but leaked. I was reading about the gasket Remflex. I ordered both but don’t know which one I should install. |
Can’t go wrong with the OG gaskets. Don’t know anything about that other brand, but the factory ones work great. I have them on my Z with kooks headers, no leaks |
GM gaskets work just fine with my ARH. |
If you are leaking with properly installed/torqued OEM gaskets, I would pull it all apart, make sure head surface is really clean, and check straightness on the headers. Possibly mill them flat if needed.
|
Originally Posted by Unreal
(Post 1598825752)
If you are leaking with properly installed/torqued OEM gaskets, I would pull it all apart, make sure head surface is really clean, and check straightness on the headers. Possibly mill them flat if needed.
whats the proper procedure for torquing the bolts. How do you get a torque wrench into such a tight location. |
You'll need a smaller torque wrench, but it's possible. 11 lb-ft on first pass and 18 lb-ft on final pass working from the inside out.
|
When I torqued mine I did the 11ft lbs first then the 18 but I went back a few times with the 18 until they were all torqued. Some of the still turned a little at 18 even after a couple of passes
|
You should also re-torque the manifold bolts after a few heat cycles. All of my exhaust manifold bolts were loose after driving the car a few times.
|
GM gaskets are a quality part, This is the first post that I have read that had problems
|
Originally Posted by Unreal
(Post 1598825752)
If you are leaking with properly installed/torqued OEM gaskets, I would pull it all apart, make sure head surface is really clean, and check straightness on the headers. Possibly mill them flat if needed.
|
Originally Posted by Zo6chip
(Post 1598825564)
I’m replacing the header gaskets on my LS7 with kooks headers. It had the stock GM gasket previously but leaked. I was reading about the gasket Remflex. I ordered both but don’t know which one I should install. |
Originally Posted by Dan_the_C5_Man
(Post 1598829563)
Remflex FTW.. They work great, almost impossible to leak. :cheers:
|
Remflex just seems like a bandaid to a different problem. No reason these headers should leak with OEM gaskets.
|
Originally Posted by Unreal
(Post 1598832638)
Remflex just seems like a bandaid to a different problem. No reason these headers should leak with OEM gaskets.
|
I fully believe you have a header leak, but the factory gaskets, if installed correctly, on clear flat surfaces won't leak. Remflex or other fancy gaskets are a bandaid to cover up a warped flange, or other issue.
|
Well i installed the Remflex gasket. The install went ok but when I tried to connect the Kooks X pipe it was off by an 1/2 “. Needless to say the gasket was too thick throwing the collector off. The Kooks are welded together and they have to be right to work. Took them off and replaced them with a GM gaskets. All lined up. Another reason to use the OE parts.
|
I have Kooks and Remflex gaskets (only because I like to do things once and I knew they wouldn't leak), compressing them "too much is a problem" doesn't make any sense, and all my stuff lined up fine.
In any case, glad all is well. :cheers: |
Remflex sealed up a leak on my ARH, I’m happy with them.
|
You don't think it might be also coming from the ball flange below? I would also make sure when installing all the bolts go in smoothly. I had a farthest rear bolt that was binding and I need to Dremel the hole in order for the header to sit properly.
|
| All times are GMT -4. The time now is 06:21 AM. |
© 2024 MH Sub I, LLC dba Internet Brands