Will GM 6.0 gaskets work on a 4.080 bore?

Reply Subscribe

Thread Tools

Search this Thread

Jun 7, 2009 | 01:34 PM

Nitrojunkie

Thread Starter

Teching In

Joined: Dec 2008

Posts: 32

Likes: 0

Will GM 6.0 gaskets work on a 4.080 bore?

Like the title says Im installing the heads on my LQ9 with a 4.080 bore and Im wandering if stock GM head gaskets will work. Thanks in advance!

Jun 7, 2009 | 04:20 PM

NemeSS

TECH Senior Member

iTrader: (127)

Joined: Sep 2005

Posts: 6,889

Likes: 9

From: Houston,TX

6.0 are 4.045 = no go
need ls3/ls9/l92
4.1 bore = go
or some cometics

Jun 7, 2009 | 04:21 PM

69LT1Bird

11 Second Club

iTrader: (1)

Joined: Sep 2007

Posts: 2,310

Likes: 6

From: Lapeer, MI

nope, the 6.2L is closer, I believe they are 4.070"

Try Cometics.

Jun 7, 2009 | 04:25 PM

NemeSS

TECH Senior Member

iTrader: (127)

Joined: Sep 2005

Posts: 6,889

Likes: 9

From: Houston,TX

Quote:

Originally Posted by 69LT1Bird

nope, the 6.2L is closer, I believe they are 4.070"

Try Cometics.

i would just go with cometics as well for that size bore

Jun 7, 2009 | 04:37 PM

Nitrojunkie

Thread Starter

Teching In

Joined: Dec 2008

Posts: 32

Likes: 0

Thanks guys. Your right I should just go with cometics. I guess Ive gotta sit down and figure out what thickness I need... I ran 6.0s last time I pulled the heads but they leaked so I questioned the GM 6.0 gaskets. Thanks again.

Jun 7, 2009 | 06:43 PM

PREDATOR-Z

TECH Senior Member

Joined: Mar 2004

Posts: 14,620

Likes: 17

From: BFE

You should run a good .015/020 size bigger than your bore or head chamber bore (which ever is bigger)

part # 12610046 LS3/L92 gasket is what you need.

Last edited by PREDATOR-Z; Jun 7, 2009 at 06:49 PM.