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Cometic Head Gaskets - Aluminum Heads #1273670 07/23/12 07:52 PM 07/23/12 07:52 PM
Joined: Jun 2006 Posts: 5,163 CT GTX MATT OP master
GTX MATT OP master Joined: Jun 2006 Posts: 5,163 CT	Anyone running cometic gaskets with aluminum heads, namely Stealths? Hows it working and whats your compression ratio? Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

Re: Cometic Head Gaskets - Aluminum Heads [Re: GTX MATT] #1273671 07/23/12 08:07 PM 07/23/12 08:07 PM
Joined: Jan 2003 Posts: 4,616 Kissimmee Fl. D dusturbd340W5 master
dusturbd340W5 master D Joined: Jan 2003 Posts: 4,616 Kissimmee Fl.	I ran them with a 14.1-1 small block with aluminum heads with 0 issues 70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4

Re: Cometic Head Gaskets - Aluminum Heads [Re: dusturbd340W5] #1273672 07/23/12 08:30 PM 07/23/12 08:30 PM
Joined: Aug 2007 Posts: 998 Clinton Township, Michigan D Dartin super stock
Dartin super stock D Joined: Aug 2007 Posts: 998 Clinton Township, Michigan	I ran them on my 451. Stock block with B1-BS heads and 12.7:1 compression. Had the heads off multiple times and kept reusing the gaskets. Clean them and coat with copper spray. Never an issue. I'm also using them on my new motor. 540 Mega Block with Ind heads and 13.9:1 compression. Randy

Re: Cometic Head Gaskets - Aluminum Heads [Re: Dartin] #1273673 07/23/12 08:40 PM 07/23/12 08:40 PM
Joined: Sep 2011 Posts: 369 California, USA!!! W WheelsUp73 enthusiast
WheelsUp73 enthusiast W Joined: Sep 2011 Posts: 369 California, USA!!!	MLS head gaskets are used on just about every new car made anymore. They are the best! http://youtu.be/fAP_2rxz_GA

Re: Cometic Head Gaskets - Aluminum Heads [Re: WheelsUp73] #1273674 07/23/12 08:53 PM 07/23/12 08:53 PM
Joined: Mar 2010 Posts: 1,880 Out in Left Field, NY B bobs66440 top fuel
bobs66440 top fuel B Joined: Mar 2010 Posts: 1,880 Out in Left Field, NY	I'm using the .027 gaskets on mine with Stealth heads. So far ok except one seems to be seeping oil from the driver's side rear. I never heard of that before, but apparently it's not that uncommon. They said to re-torque the head to see if it stops. I haven't done it yet.

Re: Cometic Head Gaskets - Aluminum Heads [Re: WheelsUp73] #1273675 07/23/12 09:34 PM 07/23/12 09:34 PM
Joined: Dec 2009 Posts: 20,640 in a cattle trailer down by th... G Guitar Jones Paddle faster! I hear banjo music!
Guitar Jones Paddle faster! I hear banjo music! G Joined: Dec 2009 Posts: 20,640 in a cattle trailer down by th...	Quote: MLS head gaskets are used on just about every new car made anymore. They are the best! This is true, but almost every new car made now also uses torque to yield head bolts. "Follow me the wise man said, but he walked behind" '92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.

Re: Cometic Head Gaskets - Aluminum Heads [Re: bobs66440] #1273676 07/23/12 09:53 PM 07/23/12 09:53 PM
Joined: Jan 2006 Posts: 281 NEW HAMPSHIRE AND MAINE B BIGSTROKER enthusiast
BIGSTROKER enthusiast B Joined: Jan 2006 Posts: 281 NEW HAMPSHIRE AND MAINE	did u spray the gasket with copper coat,high tack or anything?

Re: Cometic Head Gaskets - Aluminum Heads [Re: BIGSTROKER] #1273677 07/23/12 10:08 PM 07/23/12 10:08 PM
Joined: Aug 2008 Posts: 4,071 Mo. racerx master
racerx master Joined: Aug 2008 Posts: 4,071 Mo.	stockblock....-1's....not a problem with 13.1

Re: Cometic Head Gaskets - Aluminum Heads [Re: GTX MATT] #1273678 07/23/12 10:33 PM 07/23/12 10:33 PM
Joined: Aug 2009 Posts: 2,047 Mooresburg, Tn ' '72CudaRacer top fuel
'72CudaRacer top fuel ' Joined: Aug 2009 Posts: 2,047 Mooresburg, Tn	Just like the rest, I run Cometics with Stealth heads and a stock block, 440 with 13.6:1 compression. Reused the gaskets 4 or 5 times so far, no problems. Just clean them and spray with copper spray coating. Brian Dunnigan

Re: Cometic Head Gaskets - Aluminum Heads [Re: '72CudaRacer] #1273679 07/23/12 10:42 PM 07/23/12 10:42 PM
Joined: Jun 2010 Posts: 469 Tennessee S steeldust mopar
steeldust mopar S Joined: Jun 2010 Posts: 469 Tennessee	I run 40" Cometics with Aluminum block and 440-1 heads 13 to one comp two seasons no trouble the best head Gaskets i have run Last edited by steeldust; 07/23/12 10:44 PM.

Re: Cometic Head Gaskets - Aluminum Heads [Re: steeldust] #1273680 07/23/12 11:59 PM 07/23/12 11:59 PM
Joined: Jun 2007 Posts: 2,646 Plymouth Meeting, PA bigtimeauto Trophy Winner
bigtimeauto Trophy Winner Joined: Jun 2007 Posts: 2,646 Plymouth Meeting, PA	I run them with more compression than you would believe and 24lbs of boost. BB, TT5,Procharged 3300lb Street Car 4.79/154

Re: Cometic Head Gaskets - Aluminum Heads [Re: bigtimeauto] #1273681 07/24/12 02:38 AM 07/24/12 02:38 AM
Joined: Jun 2006 Posts: 5,163 CT GTX MATT OP master
GTX MATT OP master Joined: Jun 2006 Posts: 5,163 CT	Alright sounds good to me! Are you guys using copper spray on the first use of them as well? I probably will, I love that stuff! Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

Re: Cometic Head Gaskets - Aluminum Heads [Re: GTX MATT] #1273682 07/24/12 08:09 AM 07/24/12 08:09 AM
Joined: Feb 2005 Posts: 375 NW Minnesota M Maximus_Wedges enthusiast
Maximus_Wedges enthusiast M Joined: Feb 2005 Posts: 375 NW Minnesota	I put mine in dry new. Spray copper coat on the second and 3rd go round then toss. The viton seems about used up at this point. I've only used them to 14.25 to 1. Your mileage may vary.

Re: Cometic Head Gaskets - Aluminum Heads [Re: Maximus_Wedges] #1273683 07/24/12 09:44 AM 07/24/12 09:44 AM
Joined: Sep 2003 Posts: 2,008 Sweet Home Alabama M MRMOPAR622 top fuel
MRMOPAR622 top fuel M Joined: Sep 2003 Posts: 2,008 Sweet Home Alabama	Cometic's or Cooper with o-ringed head gaskets...which are best? Last edited by MRMOPAR622; 07/24/12 09:45 AM. "To Be The Man'You Have Got To Beat The Man" "T/D and Pro-Bracket Racer"

Re: Cometic Head Gaskets - Aluminum Heads [Re: MRMOPAR622] #1273684 07/24/12 02:43 PM 07/24/12 02:43 PM
Joined: Aug 2003 Posts: 43,211 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,211 Bend,OR USA	Quote: Cometic's or Cooper with o-ringed head gaskets...which are best? Copper head gaskets have thier application, what do you want to use them on? Trying not to hijack this, I have used the Cometic on several applications, reused them also with no spray ever The Nitrile coating will come loose after several applications of reusing them, not sure that the copper spray will replace that Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Cometic Head Gaskets - Aluminum Heads [Re: Cab_Burge] #1273685 07/24/12 03:32 PM 07/24/12 03:32 PM
Joined: Dec 2006 Posts: 506 Texas Afghanistan Iraq etc. D DakFink mopar
DakFink mopar D Joined: Dec 2006 Posts: 506 Texas Afghanistan Iraq etc.	I just talked this over with my local machine shop yesterday. He actually prefers Fel-Pro MLS over Cometics. I didn't even know Fel-Pro made MLS Gaskets? none of his Fel-Pro MLS engines have. He said he has had a few engines come in with Cometics blown and engine damage. But none of his FelPro MLS engines have had a problem yet. He builds a LOT of roundy-round and drag-race engines. I mentioned the SCE Copper gaskets; He said they are good BUT you have to have the Receiver Grooves for the O-rings which is another step and head ache not needed with MLS.

Re: Cometic Head Gaskets - Aluminum Heads [Re: DakFink] #1273686 07/24/12 05:12 PM 07/24/12 05:12 PM
Joined: Aug 2003 Posts: 43,211 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,211 Bend,OR USA	I've used several different brands and styles of copper head gaskets on blown street hemi motors. I have also use the SCE brand Titan copper head gaskets on wedges and hemi with no reciever groove with no problems at all on both bracket race motors and street only Hi Po motors The Titan sereis have a stainles steel O ring embedded in the copper and all the water and oil pasages are seal on both sides with embossed Teflon O rings On a new motor I wuld probally use the MLS gaskets and make sure the machine shop gets the proper RA finish done on both the heads and the block Last edited by Cab_Burge; 07/24/12 05:14 PM. Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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