Engine/Transmission (1994 - 1998) Whats the best head gasket to use for factory replacement?

[Blacksdieselhp]

I am doing a head gasket on a customers truck and I may end up buying it. I am wandering whats the best thing to use if I were planning on running a bigger turbo in the future. I don't wanna oring it. I will probably go ahead and stud it.

 

[Forrest Nearing]

I'm thinking the factory one?



go with a . 020" over-thick marine gasket

 

[Dodgentwo]

I would look into the new cometic gasket. It has o-rings built in and is shown to hold up to 80+ PSI. May be more than you need now, but couldnt hurt. And if you add HP down the road, your covered.



Just my . 02

Travis

 

[Piers]

If you are wanting a Cummins part number,

3283335 is stock thickness

3283337 is . 010" thicker

3283339 is . 020" thicker



The Cometic 12V head gasket is not yet available, about a month out.

Here's a picture of one being installed & tested. View attachment 66080

 

[Forrest Nearing]

I fondled a over-thick 12v cometic the other day. Can't wait for them to be released to the peons!

 

[SRehberg]

What is the advantage of going 0. 020" thicker unless the head has been shaved that amount? I still have the stock gasket in place but it seems to have a high failure rate at the water jacket.

 

[tony597fitter]

You can call Cometic and get a 12valve MLS headgasket now. I have one sitting in my garage waiting for the new head thats being ported by Garrett from Pure Diesel Power.

Also have ARP 12mm studs to put in and a Fluidampr and a HTT 3pc. manifold.

Hopefully next week my truck will be runing again.

If you want I can get pics of it.

 

[DESL PWR]

Do you have a part number for that 12V MLS gasket thats sitting in your garage?

 

[Forrest Nearing]

What is the advantage of going 0. 020" thicker unless the head has been shaved that amount? I still have the stock gasket in place but it seems to have a high failure rate at the water jacket.

lower compression ratio = lower cylinder pressure at a given power level...

 

[tony597fitter]

Do you have a part number for that 12V MLS gasket thats sitting in your garage?

Better yet, Pics and part numbers, from the 12v MLS gasket thats sitting in my garage, that I just went out to, to take some pics. :-laf



Sorry pics are a litte blurry. Also, its NOT on their website yet. You have to call them.

 

[Jim Fulmer]

Hum, sounds like the ticket for the new "Converted" 12V I'm now back to building.



Hey Piers, good to see you on the board again.



Jim

 

[hsmith]

And a TEXAS welcome back to Piers. Really enjoyed the presentation you and Joe presented at Kerrville. Think that was about 7 years ago.



Smitty

 

[DESL PWR]

I am guessing the . 060" stands for gasket thickness. How does that compare to a stock gasket? Is it the same thickness as stock, or more like the . 020 over?

 

[tony597fitter]

For some reason I want to say stock is . 050". But I could be wrong on that. I was told this was a stock replacement.

 

[Dieseldemon]

I just measured a stock gasket and compressed it is 0. 65" thick at the cyl ring.

 

[LanceD]

whats the MLS stand for?

 

[Oil Burner]

multi layer steel

 

[GOTSOOT]

commetic H/G

there are no commetic H/G`s available,just called and they said that tey have scraped the production,if ya got one of the prototypes you got lucky. !looks like the stock Marine cummins is what you will be using. some people trim the 12 valve gasket and some just put it on and forget it,something like Ron Popeilset,:-laf set and forget it!