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Head gasket clarification


gorillaman2012

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Alright..so just to clarify (since it's apparently difficult to get it from manufacturers) I'm wanting to throw a MLS head gasket in my l26 during the top end rebuild. Only one I'm able to find though (and manufacturers state) is for the l28. Some say will work with all 3 (l24, l26, l28) but give no selection between the 3. Just don't want to throw wrong parts together. Anyone clear this mess up? Thanks

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So the detail of what you're wondering about is if a 90.5 mm diameter fire ring will seal on an 83 mm bore.  I would guess that it would if the sealing surfaces are flat and solid.  

 

I don't have the experience to say but I think that's the heart of the question.  Kameari only offers 87 and 90.5 options anyway (maybe.  Their web site shows 86 in one place and 87 in another) .  You're 1.75 mm farther away with the 90.5 than with the 87.  The dead space can be a bother but I think it will fill up with carbon quickly.  Again, just a guess.

 

http://www.kameariusa.com/l6-metal-headgasket/

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This is probably a good time to point out that replacing a blown head gasket, while not fun, is far easier and cheaper than broken ring lands...

 

Sometimes doing it "right" is counter-intuitive.

 

Been there, Done that, Got the T-shirt. Stick with a stock head gasket. You will be grateful the first time your new and not perfectly tuned turbo setup detonates and pops a head gasket and not a ring land.  BTW I have a few broken pistons from exactly this if you need pictorial proof.

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  • 3 weeks later...

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