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CC Advertisers
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11-01-2007, 06:36 AM
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CC Member
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Join Date: Nov 2003
Location: Anderson, S,C,
SC
Cobra Make, Engine: EM 427SC body, chassis, suspension , my design, 427SO, toploader, shaft drive fan,road race pan, Dove heads, Comp. cam,
Posts: 4
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Not Ranked
FE Head Gaskets
Has anyone used the " Cometic " brand head gasket in their 427 engine ?
This is a Viton coated 3 layer S.S. gasket.
Looks like a good design , but expensive.
Looking for long term durabiity on a 427 S.S. iron block / Dove aluminum head engine. ( 10.1 comperssion ) Thanks
Dave
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DB
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Advertising
11-01-2007, 06:54 AM
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Senior Club Cobra Member
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Join Date: May 2007
Location: Mesa,
AZ
Cobra Make, Engine: Contemporary Classic, 428 FE CCX 3069
Posts: 7,506
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Not Ranked
Dave, I've just finished "working" on my motor and one of the jobs was to replace the head gasket. I used Cometic gaskets thanks to advice from Keith Craft. I was trying to reduce compression on a 351C from 11.5:1. Went with an .080 thick gasket from Cometic. It went together well and seems to be working great. The extra thickness seems to have reduced compression to about 10.7:1. Just finished a 500 mile run to Laughlin and back without incident. I believe that these are worth the money.
__________________
Dan in Arizona
CCX3209
"It's a great car and I love it, but it doesn't do 'SLOW' very well."
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11-01-2007, 07:15 AM
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CC Member
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Join Date: Nov 2003
Location: Anderson, S,C,
SC
Cobra Make, Engine: EM 427SC body, chassis, suspension , my design, 427SO, toploader, shaft drive fan,road race pan, Dove heads, Comp. cam,
Posts: 4
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Not Ranked
Dan, Thanks for the feedback.
I have used FelPro and steel shim in the past, but came across the Cometic recently.
Anyone else with experience withe the Cometic ? Dave
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DB
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11-01-2007, 07:17 AM
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CC Member
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Join Date: Feb 2005
Location: milwaukee,
wi
Cobra Make, Engine: ERA #726 427 SOHC
Posts: 122
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Not Ranked
I use them on my Cammer. No problems so far. They'll make them in any thickness and bore size within reason.
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11-01-2007, 08:32 AM
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CC Member
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Join Date: Jun 2003
Location: Freedomia,,
Il
Cobra Make, Engine: Coupe,Blue w/white stripes SB; Roadster, Blue w/white stripes BB w/2-4s; SPF installer/Hot Rod-Custom Car builder
Posts: 1,376
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Not Ranked
Cometic has been around a while with gaskets for bikes and some Foreign machinery. They started making HP gaskets for american V8 engines within the last 15 years or so. They have a pretty good reputation with the 5.0 crowd where, I believe, they initially ventured. I have used them in all types of engines, although not in any FEs. I have had no problems. Many of these were engines of aluminum or a combination of materials.
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WDZ
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11-01-2007, 10:49 AM
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CC Member
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Join Date: Dec 2000
Location: Broken Arrow. OK ( South Tulsa), USA,
OK
Cobra Make, Engine: 66 COBRA FE 427 /4SP. (HCS Coupe w/ 408 Stroker and TKO 600 -sold)
Posts: 5,595
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Not Ranked
I am running them on my 427 and to be honest with you I am not sure they are any better than my FelPro gaskets. I have had them on my car for about six months now. They cost more!
Clois
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Sunshine, Asphalt and no stop signs...Perfect
"Let's roll"
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from CD "Long Road Out of Eden"
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11-01-2007, 11:10 AM
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Senior Club Cobra Member
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Join Date: Jan 2004
Location: St. Louis,
Mo.
Cobra Make, Engine: 427 S.O. Dual Quad / Cobra undecided
Posts: 1,380
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Not Ranked
What kid of money are you guys talking about for a set?
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11-01-2007, 11:30 AM
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Senior Club Cobra Member
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Join Date: May 2007
Location: Mesa,
AZ
Cobra Make, Engine: Contemporary Classic, 428 FE CCX 3069
Posts: 7,506
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Not Ranked
Supervee, if you want a real expert opinion, check with Keith Craft. He is the one who recommended them to me.
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Dan in Arizona
CCX3209
"It's a great car and I love it, but it doesn't do 'SLOW' very well."
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11-01-2007, 03:09 PM
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CC Member
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Join Date: Nov 2003
Location: Anderson, S,C,
SC
Cobra Make, Engine: EM 427SC body, chassis, suspension , my design, 427SO, toploader, shaft drive fan,road race pan, Dove heads, Comp. cam,
Posts: 4
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Not Ranked
Lineslinger,
The list price I have seen is $98 each. ( i.e. $200 a set )I am not sure of discounted price.
I will check with Keith Kraft as recommended.
A local engine builder recommended them as well, but I had never seen this particular design.
I had some special issues on one one deck of my S.O. that would cause a FelPro to blow in about 10 minutes running ( not the gasket fault ). But I have run a steel shim gasket for 12 years - no issue.
I am in the process of freshening up the engine ( and I will also correct the block issue ) , and would like to use the best head gaskets. Dave
__________________
DB
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11-01-2007, 04:49 PM
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CC Member
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Join Date: Apr 1999
Location: cleveland,
OH
Cobra Make, Engine: CSX4000, 427
Posts: 1,999
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Not Ranked
Quote:
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Originally Posted by Danr55
Dave, I've just finished "working" on my motor and one of the jobs was to replace the head gasket. I used Cometic gaskets thanks to advice from Keith Craft. I was trying to reduce compression on a 351C from 11.5:1. Went with an .080 thick gasket from Cometic. It went together well and seems to be working great. The extra thickness seems to have reduced compression to about 10.7:1.
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But, that will affect your quench area, whatever performance effect it will have I don;t know.
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"After jumping into an early lead, Miles pitted for no reason. He let the entire field go by before re-entering the race. The crowd was jumping up and down as he stunned the Chevrolet drivers by easily passing the entire field to finish second behind MacDonald's other team Cobra. The Corvette people were completely demoralized."
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