Cometic vs GM MLS

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Sep 6, 2010 | 06:19 PM

BLAKE 01 WS6

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Cometic vs GM MLS

Which head gaskets are you guys running? I will be running a D1SC(8psi) with GT2-3 cam on the stock bottom end(around 500rwhp)? Are the cometics worth the extra $$ over the GM MLS? I will also be using ARP head studs.

Sep 6, 2010 | 07:59 PM

9sectruck

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From: jefferson city MO

rwhp in sig. I have heard good things about guys really pushing on stock mls gaskets, if im no mistaking some of the gm gaskets are 5 layer??

Sep 6, 2010 | 08:43 PM

blue00ZZleeper

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From: Oceanside CA

Standard GM MLS gaskets are 5 layer. You can also go with LS9 head gaskets if your using 317 heads, their 7 layer. I've ran the standard GM gaskets the whole time I've had my car and not a single problem yet.

Sep 7, 2010 | 11:31 AM

WARPNOVA

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From: Kansas City MO

3rd vote for the GM MLS gaskets. The Cometic are very hit a miss. You either swear by them or swear at them. Not much middle ground from what I have heard. I just put a set of Cometic’s on my buddies NA setup. This is the first set of Cometic's I have ever used so I guess I will see which swearing group I end up in. LOL

Sep 7, 2010 | 11:58 AM

smokinHawk

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From: Columbus, ohio

go gm unless you need a special thickness, then do cometic.

Sep 7, 2010 | 12:35 PM

99SS-T

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From: Phoenix AZ

Are the LS9 MLS's better then the regular ones? I never heard of that so I wanna see wince I'm about to toss the heads on. Thanks!

Sep 7, 2010 | 01:01 PM

WARPNOVA

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From: Kansas City MO

Quote:

Originally Posted by smokinHawk

go gm unless you need a special thickness, then do cometic.

I second that, special thickness is the only reason we used cometic on my buddies build.

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Sep 8, 2010 | 08:20 AM

Big_Bird_WS6

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to bring this back up real quick.

what gasket do you guys run on bigger than stock bore. like say a 4.125?

i heard the ls7 wont work the best witht he water lines. any imput would help.

thanks
D

Sep 8, 2010 | 04:20 PM

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Packy

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From: Surf City, NC

I have been using GM MLS gaskets since '03 and they are holding up well. I only push around 8-9 psi though.

Sep 9, 2010 | 02:00 AM

#11

BottleFedZ346

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From: Orlando Fl.

Looks like it will be GM MLS for me as well.....

Sep 9, 2010 | 11:28 AM

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99SS-T

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From: Phoenix AZ

No info on the LS9 MLS? Just wondering if it is a better option then the reg 5 layer that everyone is using?

Sep 9, 2010 | 11:34 AM

#13

BLAKE 01 WS6

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Thanks guys, for what I saved on the gaskets I bought a new set of lifters.

Sep 9, 2010 | 11:34 AM

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Big_Bird_WS6

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^^^^ figureing it is made for a boosted motor. i am going to say it is better. and it came out after the 5 laye. so i dont think GM would go bawards in gaskets

Sep 9, 2010 | 06:44 PM

#15

blue00ZZleeper

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From: Oceanside CA

LS9 gaskets are 7 layer. Do a search. This issue just cam up not to long ago. There was also part numbers listed.

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Cometic vs GM MLS

Cometic vs GM MLS

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