veee8

iTrader: (40)

Has anyone actually laid their hands on a set of these? It was brought up a while ago, but we weren't sure if the dowel holes were larger or if there were any other differences. No speculation please, just first hand info. Part number?

veee8

iTrader: (40)

Well I guess I am going to go stop by the dealership and see if they are available, and maybe get one coming to take a look at.

camarols1

iTrader: (17)

The LS9 gasket part number is 12622033.
The dowel pins are the same as a regular LS1, so aside from having bigger 11mm bolt holes I can't think why it would need to be any different than the regular 6.2 gasket.
Let me know if your local guy will not order one for "inspection" and I will get one on the way.

ls2 bait

iTrader: (11)

my buddy has a set in his hands right now. he measured then and they are the same thickness as the ls3 gasket but are 7 layers as opposed to 5.

FastBlackTA

iTrader: (7)

I ran them on my nitrous car, over 500 shot, great results.

405HP_Z06

iTrader: (11)

What is the bore diameter?

veee8

iTrader: (40)

I checked at the local dealership (they suck btw), and it is the part number you guys posted 12622033. He said they were not available, and no dealers showed having them???
Where are you guys getting them? Price?
How many layers are the LS7's? I can't remember for sure, 3??

Frank02L

iTrader: (1)

Hmm, I know 1/2" studs go thru the oe dowel pin so there shouldnt be any difference in the dowel size, just the bolt hole size. I'm also interested in this.

405HP_Z06

iTrader: (11)

LS7 - 3 layer
LS3, L92, L76 - 5 Layer

veee8

iTrader: (40)

I need to find a set of these. Anyone know where?

405HP_Z06

iTrader: (11)

Are you sure it's not 6? GM states this is a 4 layer gasket, but that doesn't include the two outer layers which would physically count as 6.

veee8

iTrader: (40)

Some say 7, some early press release stuff said 4. Which is it?

ls2 bait

iTrader: (11)

they are available. you just have to call certain people to get them. not all dealerships will go out of the way to do it. but 7 sets have been sold already. and yes they are a 7 layer gasket but again they are still the same thickness, just smaller layers.

hellbents10

iTrader: (10)

.500-.503 on the bolt holes. Have had a set here for a couple of weeks.

405HP_Z06

iTrader: (11)

Can you measure the the bore diameter?

hellbents10

iTrader: (10)

4.090

405HP_Z06

iTrader: (11)

Thank you!

KILLER-LS1

iTrader: (18)

hey if i have a 4.010 bore, would a 4.000 or a 4.090 gasket be better for my turbo 404ci? i have WCCH edelbrock heads with a 74cc chaimber

smokinHawk

iTrader: (48)

You wouldn't want the gasket smaller then the bore it will leak.

KILLER-LS1

iTrader: (18)

i was recommended the stock 6.0 gasket, isnt that a 4.000 bore gasket??