y2khawk

iTrader: (5)

Looks like you can get a decent factory gasket these days <img src="gr_stretch.gif" border="0">

We'll see how they do

Reckless

iTrader: (9)

So where did these come from and how much $$$ ?

Jason99T/A

iTrader: (21)

Looks like a 2002 GM factory head gasket for the LS1. <img src="gr_grin.gif" border="0"> I was shocked the first time I saw them.

[ February 22, 2002: Message edited by: Jason99T/A ]</p>

y2khawk

iTrader: (5)

[quote]Originally posted by Jason99T/A:
<strong>Looks like a 2002 GM factory head gasket for the LS1. <img src="gr_grin.gif" border="0"> I was shocked the first time I saw them.

[ February 22, 2002: Message edited by: Jason99T/A ]</strong><hr></blockquote>


Could be <img src="gr_stretch.gif" border="0">

This one is actually for a 4" bore. 6.0L gaskets. #12569365

But the same style is available for the 5.7L and the 4.8/5.3L

I'll dig up those part numbers when i get to work.

[ February 22, 2002: Message edited by: y2khawk ]</p>

Aircooled

What is the actual measured bore I.D.?
What 3 gaskets are you comparing in the second picture?

Steve

y2khawk

iTrader: (5)

I will measure the bore tonight, but i put up against my 6.0L heads to compare. It's about .1" bigger all the way around than the chamber. But i will confirm the actual diamter.

Those aren't 3 seperate gaskets. The gasket is a 3 layer metal setup. Main compresion seal is made by the inner layer, and the coolant passage seal is made by the spring steel/"rubber coating" on the outer layers. They are interchangeable between sides.

Jay 95WS6

guys don't get all revved up about these gaskets GM doesn't sell individual gaskets now. The head gaskets now come in a kit that includes the bolts and valve cover gaskets etc. so the cost is substantially higher.

Jay

AgaveCorvette

[quote]Originally posted by Jay 95WS6:
<strong>guys don't get all revved up about these gaskets GM doesn't sell individual gaskets now. The head gaskets now come in a kit that includes the bolts and valve cover gaskets etc. so the cost is substantially higher.

Jay</strong><hr></blockquote>


so? You need the bolts, anyway.

RUQWIKR

iTrader: (11)

[quote]Originally posted by Jay 95WS6:
<strong>guys don't get all revved up about these gaskets GM doesn't sell individual gaskets now. The head gaskets now come in a kit that includes the bolts and valve cover gaskets etc. so the cost is substantially higher.

Jay</strong><hr></blockquote>

You can get them in a kit with all the needed gaskets and headbolts, etc., or individually. I believe the PN for the LS1 head gasket (one) is 12573949.

Go Texas Tech

iTrader: (10)

[quote]Originally posted by Jay 95WS6:
<strong>guys don't get all revved up about these gaskets GM doesn't sell individual gaskets now. The head gaskets now come in a kit that includes the bolts and valve cover gaskets etc. so the cost is substantially higher.

Jay</strong><hr></blockquote>


I recently purchased the '02 head gaskets and head bolts too. They were sold separately. <img src="images/icons/confused.gif" border="0">

Rocco

Maybe I can use these on my big bore motor?
Please let us know what the exact size is.

A70camaro

Interested in those part numbers for individual gaskets and the whole kit

for 5.6 liter

Tin Indian

[Quote] "You can get them in a kit with all the needed gaskets and headbolts, etc., or individually. I believe the PN for the LS1 head gasket (one) is 12573949".

[Quote] "And yes, the 5.7 bore P/N is correct 12573949".
_____________________________________________


I am confused here. The P/N for the right and left stock LS1 head gasket is P/N 12558809 & 12558810. I understand the Rt and Lft sides are [not] interchangable. These part numbers are also in the LS1.Com database.

Why are my part numbers different from what you folks are posting?

Thanks,
Ron

y2khawk

iTrader: (5)

new gaskets, not side specific.

The new ones are 3 layer metal instead of the old graphoil <img src="gr_stretch.gif" border="0">

Tin Indian

y2khawk...

Thanks for the reply.

So, what I understand is that P/N 12573949 will get you one 3 layer stock LS1 head gasket, or will this P/N get you a pair of them?

Right a left side of this new gasket is interchangable

Is this new gasket now installed from the factory on all 2002 LS1s or is this a newly released GM Performance Part (not used as a factory installed part)?

Ron,

y2khawk

iTrader: (5)

factory '02

it's only one gasket

and it is interchangeable side to side

A70camaro

Not too expensive either

Just got a price from gmpartsdirect.com

even with there crazy shipping and handling charges they come out to be around $35 for a pair

GM list is $20 each

Can somebody get hold of the "kit" part number

Tin Indian

Thanks alot..... Well I guess there is no reason to put the stock 98 graphite gaskets in there anymore. Thanks for posting info on these updated gaskets.

However, to play the other side of the coin, I cant think of anyone that has blown the stock head gaskets on your typical heads/cam/headers car (as long as no spray/no boost)

Ron,

Jay 95WS6

the 3949 gasket has been superceeded this week to the gasket kit as well as the 8809 and 8810 as well just trying to let you guys know and i have several of the "new" gasket kits in stock

Jay

Tin Indian

Jay,
So you are saying; The new head gaskets cannot be ordered separatly?

If they come in a kit, what the kits P/N and price?

What is exactly in the kit? Both head gaskets, all M-11 short, all M-11 long, and all M-8 head bolts?

Thanks Jay,
Ron Larson