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Does LS7 use a MLS GM head gasket?

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Old May 25, 2006 | 05:08 PM
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Default Does LS7 use a MLS GM head gasket?
Since we all normally use 6.0L MLS head gaskets on ls2/6.0 stuff, does the LS7 use a factory MLS gasket?

(hoping to find a new source of low cost good gaskets for big bore stuff)
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Old May 25, 2006 | 05:20 PM
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dam how come i didnt think of this last week then i ordered those
stupid expensive cometics
im slipping
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Old May 25, 2006 | 07:59 PM
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Originally Posted by stang90gt50
Since we all normally use 6.0L MLS head gaskets on ls2/6.0 stuff, does the LS7 use a factory MLS gasket?

(hoping to find a new source of low cost good gaskets for big bore stuff)

Yes!

Bill
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Old May 26, 2006 | 12:02 PM
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Anyone have a part # or info on them that has taken apart a LS7?
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Old May 26, 2006 | 03:39 PM
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Chad at Xtreme Motorsports has it... give him a call at 480-517-4969.

... unless Jason from Katech can post it up... maybe shoot him a PM...

Bill
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Old May 26, 2006 | 03:43 PM
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part number is :

12582179
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Old May 26, 2006 | 04:16 PM
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Originally Posted by NemeSS
dam how come i didnt think of this last week then i ordered those
stupid expensive cometics
im slipping

Don't kick yourself. The LS7 head gaskets have been on national backorder. We have been supplementing with Cometic.
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Old May 26, 2006 | 05:51 PM
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Originally Posted by Katech
Don't kick yourself. The LS7 head gaskets have been on national backorder. We have been supplementing with Cometic.
Are they still on backorder ?? So the 6.0 MLS would be fine to use on a 402ci LS2 w/ LS7 style heads?
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Old May 26, 2006 | 06:34 PM
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Originally Posted by xphantomws6x
Are they still on backorder ?? So the 6.0 MLS would be fine to use on a 402ci LS2 w/ LS7 style heads?

I think they're still on backorder.
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Old May 27, 2006 | 06:45 PM
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Originally Posted by Katech
Don't kick yourself. The LS7 head gaskets have been on national backorder. We have been supplementing with Cometic.
do u know the bore size and compressed thickness?
thanks
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Old May 30, 2006 | 09:44 AM
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Originally Posted by NemeSS
do u know the bore size and compressed thickness?
thanks
I just checked one of the 7.0L gaskets. It is 4.180" gasket bore. Since it is a MLS gasket it is hard to get an accurate reading with a digital caliper but it is between .060" and .065". They are curently on back order but I do have 1.

Brian
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