Which header gasket to use?
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 5,562
Likes: 1
From: Bedford TX
Which header gasket to use?
I just picked up a used set of headers, and I'm kinda clueless as to which gasket to use. Can anyone give me some good idea's? I want one that wont leak, and is probably reusable.
and... are new header bolts needed?
and... are new header bolts needed?
Last edited by 5W0P3; Jul 17, 2006 at 03:55 PM.
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
The GM F-body LS1 round port metal layer gaskets are what I used, based on other's recommendations. They are much superior to the fiber gaskets that usually come with header kits.
GM part # on those is 12558573 They were $12ea and in-stock at my local dealer.
The stock manifold bolts are fine to use. There are special locking ones out there, but in 40k miles, I've not had any problems with the stock bolts loosening.
GM part # on those is 12558573 They were $12ea and in-stock at my local dealer.
The stock manifold bolts are fine to use. There are special locking ones out there, but in 40k miles, I've not had any problems with the stock bolts loosening.
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 5,562
Likes: 1
From: Bedford TX
Originally Posted by Y2Kvert4me
The GM F-body LS1 round port metal layer gaskets are what I used, based on other's recommendations. They are much superior to the fiber gaskets that usually come with header kits.
GM part # on those is 12558573 They were $12ea and in-stock at my local dealer.
The stock manifold bolts are fine to use. There are special locking ones out there, but in 40k miles, I've not had any problems with the stock bolts loosening.
GM part # on those is 12558573 They were $12ea and in-stock at my local dealer.
The stock manifold bolts are fine to use. There are special locking ones out there, but in 40k miles, I've not had any problems with the stock bolts loosening.
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
Originally Posted by 5W0P3
is there a difference between LS1 and LS6 heads? (i have ls6)
If you get the LS6 gaskets, they will have oval ports, and the headers have round ports, so this is why the older round port LS1 gaskets are preferable to use with headers.
I don't believe there is any other difference other than the port shape.
