Head gasket materials
Moderator: bajabob
Head gasket materials
Does anyone know what the OEM composite and/or MLS head gaskets are made out of? I’m conducting a research project about potential improvements to Subaru head gaskets from a materials engineering standpoint, and I cannot find any information online about the composition of the head gaskets. Do any of y’all know, or know who I should get in touch with? Thank you!
Re: Head gasket materials
I don't know exactly what you are planning, but "All Wheel Drive" in Washington offers "Six Star" head gaskets that are an improvement over OEM. I've used them and would use them again. I also used "New" OEM head gaskets from Subaru on a different engine, again, with success. Dennis
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- Scoobytruck Master
- Posts: 181
- Joined: Wed Jun 05, 2019 9:30 pm
Re: Head gasket materials
You should buy a couple and analyse them for your project.
1992 Legacy SS, 5mt and heavily modified
2000 Impreza RSTi Coupe
2003 Baja, H6 and Dual Range 5mt swap
2000 Impreza RSTi Coupe
2003 Baja, H6 and Dual Range 5mt swap
- kamesama980
- Scoobytruck Master
- Posts: 369
- Joined: Mon Feb 29, 2016 6:54 am
Re: Head gasket materials
I would imagine they're "proprietary mix of materials engineered for the best performance" and you'd have better luck sending them to a materials lab. Keep in mind even if you do get a match on the alloy for the MLS turbo gaskets, that's only half the picture as heat treating, tempering, etc matter as much as the alloy.
MLS is some steel alloy
Composite has a perforated steel layer, graphite, and who knows what else
MLS is some steel alloy
Composite has a perforated steel layer, graphite, and who knows what else
-Russell
"You don't get to judge me for how I fix what you break"
03 sport 5mt
05 turbo 5mt vf39 and other STI bits, 3" turbo-back
"You don't get to judge me for how I fix what you break"
03 sport 5mt
05 turbo 5mt vf39 and other STI bits, 3" turbo-back