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Cometic Head Gaskets #849271 11/08/10 11:05 PM 11/08/10 11:05 PM
Joined: Jan 2008 Posts: 295 Circleville, Ohio E Evil67 OP enthusiast
Evil67 OP enthusiast E Joined: Jan 2008 Posts: 295 Circleville, Ohio	I am going to use Cometic head gaskets on my 440. I have heard you should put sealer on them but the Cometic website says NOT to. What do all of you do? Former Username - 71Cuda Current Ride: 1967 Dart - 340

Re: Cometic Head Gaskets [Re: Evil67] #849272 11/08/10 11:15 PM 11/08/10 11:15 PM
Joined: Mar 2009 Posts: 2,464 Sydney,Australia tex013 top fuel
tex013 top fuel Joined: Mar 2009 Posts: 2,464 Sydney,Australia	i run them without sealer.BUT i open them up at the ends and put a light smear there just to save any weepage at the ends,with the oil draining and near the intake Tex New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive

Re: Cometic Head Gaskets [Re: tex013] #849273 11/08/10 11:21 PM 11/08/10 11:21 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 Lunch is on me!
joshking440 Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	I didnt use any sealer on my motor....no weeping and seal great under 35lbs of boost

Re: Cometic Head Gaskets [Re: Evil67] #849274 11/09/10 12:26 AM 11/09/10 12:26 AM
Joined: Dec 2005 Posts: 541 South Carolina A a408swinger mopar addict
a408swinger mopar addict A Joined: Dec 2005 Posts: 541 South Carolina	I spray mine with a light coat of ultra copper spray on my smallblock. Unless you have a smooth enough deck and head surface you will get some coolant seepage. The ultra copper spray will stop that.

Re: Cometic Head Gaskets [Re: a408swinger] #849275 11/09/10 02:22 AM 11/09/10 02:22 AM
Joined: Jan 2003 Posts: 4,448 Phoenix, AZ M MoparBilly master
MoparBilly master M Joined: Jan 2003 Posts: 4,448 Phoenix, AZ	I spray mine with ultra copper spray, did it on the BB and the SB...quite heavily, both sides of the gaskets. 6292562-75459106.Y3cDcVzG.SportsmanFriday5.jpg (75 downloads) "Livin' in a powder keg and givin' off sparks" 4 Street cars, 5 Race engines

Re: Cometic Head Gaskets [Re: MoparBilly] #849276 11/09/10 05:49 AM 11/09/10 05:49 AM
Joined: Dec 2006 Posts: 4,647 aotearoa rebel master
rebel master Joined: Dec 2006 Posts: 4,647 aotearoa	i use a light spray with copper coat on new gaskets & when i'm re-using i get a little heavier with the coatings & do each individual layer.

Re: Cometic Head Gaskets [Re: rebel] #849277 11/09/10 08:26 AM 11/09/10 08:26 AM
Joined: Mar 2005 Posts: 2,601 ky H headhunter master
headhunter master H Joined: Mar 2005 Posts: 2,601 ky	i would spray both sides with copper coat spray to be on the safe side let me know when you get her running agian

Re: Cometic Head Gaskets [Re: headhunter] #849278 11/09/10 09:42 AM 11/09/10 09:42 AM
Joined: Jan 2003 Posts: 13,365 Marion, South Carolina [><] an8sec70cuda I Live Here
an8sec70cuda I Live Here Joined: Jan 2003 Posts: 13,365 Marion, South Carolina [><]	I spray mine w/ coppercoat on both sides and in b/t the layers. Same gaskets for the past 4 years w/ no leaks. Re-used them when I freshened it up 2 years ago too. CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax

Re: Cometic Head Gaskets [Re: an8sec70cuda] #849279 11/09/10 09:45 AM 11/09/10 09:45 AM
Joined: Nov 2009 Posts: 3,410 Belpre,Ohio C CHAPPER master
CHAPPER master C Joined: Nov 2009 Posts: 3,410 Belpre,Ohio	Quote: I spray mine w/ coppercoat on both sides and in b/t the layers. Same gaskets for the past 4 years w/ no leaks. Re-used them when I freshened it up 2 years ago too. Yes,,,and definitly 'between' the layers! If you like drag racing, support your local track.

Re: Cometic Head Gaskets [Re: CHAPPER] #849280 11/09/10 12:40 PM 11/09/10 12:40 PM
Joined: Dec 2008 Posts: 1,200 UK 6 602heavy pro stock
602heavy pro stock 6 Joined: Dec 2008 Posts: 1,200 UK	When i've used these i drilled the rivets out & sprayed each layer with coppercoat , jusy be sure to get the orientation right when assembling to heads.

Re: Cometic Head Gaskets [Re: Evil67] #849281 11/09/10 02:45 PM 11/09/10 02:45 PM
Joined: Nov 2003 Posts: 2,715 closer to Canadian beer! torkrules I'm neurotic
torkrules I'm neurotic Joined: Nov 2003 Posts: 2,715 closer to Canadian beer!	Quote: I am going to use Cometic head gaskets on my 440. I have heard you should put sealer on them but the Cometic website says NOT to. What do all of you do? I sprayed mine but I used Hylomar blue. Took them apart and sprayed each layer. I had to take one head off and all I did was wipe them down with thinner, re-sprayed them and used them again. Zero leaks.

Re: Cometic Head Gaskets [Re: torkrules] #849282 11/09/10 03:48 PM 11/09/10 03:48 PM
Joined: Oct 2009 Posts: 1,288 Oregon sg66mopar pro stock
sg66mopar pro stock Joined: Oct 2009 Posts: 1,288 Oregon	Used them with no sealer on my first 572 with Indy heads and had lots of moisture in the oil all that year. Used the same gaskets this year on the same block but with B1 heads. This time they were copper coated and had NO leaks even though the gaskets were used.

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