Head gasket thickness questions???
Thread Starter
Burning Brakes
Joined: Sep 2009
Posts: 1,239
Likes: 2
From: Naples FL
St. Jude Donor '12
Head gasket thickness questions???
I just got some new heads in, I want to lower the CR a bit and I figure about .060 to .070 head gasket would get me in the range I want to be in. I've been told these heads work best with LS2 gaskets.
Any suggestions on where to order them?
Also, How much can I increase the gasket thickness before I have to worry about changing the pushrods? I know that's a loaded question, but how much variation is safe?
Any suggestions on where to order them?
Also, How much can I increase the gasket thickness before I have to worry about changing the pushrods? I know that's a loaded question, but how much variation is safe?
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
We need to know what heads they are and specifically the combustion chamber volume. Also what ratio are you trying to achieve? Also what year is the engine from? Post 2001 LS1's came with a .060" gasket already. Pre 2001 LS1's had a .052" gasket.
Much more info needed!
Much more info needed!
Last edited by NukeC5; Sep 2, 2012 at 10:06 PM.
Thread Starter
Burning Brakes
Joined: Sep 2009
Posts: 1,239
Likes: 2
From: Naples FL
St. Jude Donor '12
I have an LS6. The heads I'm putting on have 58cc chambers. I want an 11 to 11.2 CR so I believe a .060 to .070 gasket would put me where I want to be.
My question was more along the line of suggestions of where I can get the gaskets in that range. The seller said the heads work best with ls2 head gaskets
My question was more along the line of suggestions of where I can get the gaskets in that range. The seller said the heads work best with ls2 head gaskets
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
I have an LS6. The heads I'm putting on have 58cc chambers. I want an 11 to 11.2 CR so I believe a .060 to .070 gasket would put me where I want to be.
My question was more along the line of suggestions of where I can get the gaskets in that range. The seller said the heads work best with ls2 head gaskets
My question was more along the line of suggestions of where I can get the gaskets in that range. The seller said the heads work best with ls2 head gaskets
Its the process where you do boar x boar x stoke x .7854 = Blank to find the cylinder volume, then deck clearance, then gasket thickness, chamber volume and piston dome, dish, or valve recessed. etc. etc. etc. on and on till you end up with all the variables to divide and find the compression ratio.
You should look up how to do this. There are different specs that can be found in engines. Even with the same engine code. The only true way to know what you will be at is to micrometer and dial indicator every bit involved. You can always guess and throw an LS2 gasket on it. But you will only ever think you know what the ratio is at.
