who makes the best head gaskets

[Lavey Huffer]

looking for the best head gaskets i can get for afr head small block 4.040 bore as thin as possible .027 or thinner.

[502 JET]

I dont know if they are the best but Milidon makes a copper gasket .030 thick 4.060 bore seems to be the smallest bore listed.Summit racing part#MIL-39990.$67.95 for a pair.These seem to be the thinest listed in their catalog.

[DEL51]

I haved read on these forums that cometic are real nice, is their any particular reason you need 27 thou?

[Lavey Huffer]

I haved read on these forums that cometic are real nice, is their any particular reason you need 27 thou?
Tring to stay within my target compression ratio 7.5:1 the heads are 76cc and anything thick will drop it below what I want and the heads are already assembled or I would have them surfaced.I've run alot of turbo (drag)motors but they have cooper seals or o-rings with step deck,but I'm not boosting 25lbs+ so I decided to run gaskets on my boat.Also I was worried about copper/cast/aluminum reacting in a marine motor especially with fresh water so I was thinking about multi layer stainless hopefully Cometic unless I hear or learn otherwise.

[Fiat48]

Guess the only choice I would know of would be a cometic then. I dont know the available thicknesses but Infomaniac sells them so he would know.

[502 JET]

Cometic has .027 head gaskets here is a link. http://www.cometic.com/catalogs/AutoCat04.pdf

[ghittner]

I'm runnin' under 10 pds with a 420. Do I need a special gasket?

[Liberator TJ1984]

I'm runnin' under 10 pds with a 420. Do I need a special gasket?
ghittner, I am using the Cometics and like them. Just my 2* but I would not skimp on the quality of a GOOD headgasket. It sucks to have to tear your motor back down because of something simple like a leak. you may not actually "need" a high dollar gasket , but if the jobs done right you'll save yourself headaches later :)
I had a set of Felpro gaskets blow out between cyls. before I put the cometics on ,its been 3yrs on them and 22#boost w/no problems :cool:

[uclahater]

460 Duh :p :p

[Lavey Huffer]

I know the guys @ SCE and they make a new copper head gasket with an O ring cut into it it's the ICS Titan . Duttwieler put 40lbs.+ on a small block chevy without problems.But I wonder how long it will last in a marine motor vs. stainless cometic.
http://scegaskets.com/products/ics.html

[john f2000]

I used cometics on a 460 with trick flow aluminum heads for a twin turbo application. the cometics leaked water like a rain forest. Had to use a little tap water, about a month latter they sealed up. I heard that with cometics you need to have the surfaces machined to a mirror finish. Anyone else had this problem?

[49er]

GT perpormance sells the cometic gaskets, they say they have ran twin turbo motors making 48lbs of boost with no problems,so that's what i use

[396_WAYS_TO_SPIT]

I am running a set of .021 cometics. They are a bitchin gasket. .....

[396_WAYS_TO_SPIT]

460 Duh :p :p
Lmfao:D