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Does LS7 use a MLS GM head gasket?

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Old 05-25-2006, 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 05-25-2006, 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 05-25-2006, 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 05-26-2006, 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 05-26-2006, 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...

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Old 05-26-2006, 03:43 PM
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part number is :

12582179
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Old 05-26-2006, 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 05-26-2006, 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 05-26-2006, 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 05-27-2006, 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 05-30-2006, 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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