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cometic phuzion head gaskets

This is a discussion on cometic phuzion head gaskets within the Internal Engine forums, part of the LSx Technical Help Section category; The gas filled o-ring portion of Phuzion is manufactured from high strength aerospace tubing capable of withstanding ultra high ...

  1. #1
    Super Moderator mrr23's Avatar
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    Jul 2005
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    cometic phuzion head gaskets

    The gas filled o-ring portion of Phuzion is manufactured from high strength aerospace tubing capable of withstanding ultra high combustion temperatures and pressures. Additionally each ring is plated with silver to increase the sealing level and minimize brinelling. The silver also aids in withstanding head to block movements without burnishing the surfaces. The real innovation to the gas filled o-ring though, is the gas itself. During the manufacturing process the gas in the ring is sealed in at 500-600 psi at room temperature. As the engine is warmed up, the gas is heated increasing the pressure inside the ring causing it to expand. This allows the ring to seal the combustion even in the event of head liftoff.
    The MLS gasket portion of Phuzion is what gives you the ability to use the gas filled o-rings without machining any grooves in your block and/or head. MLS head gaskets are comprised of three layers. Viton coated embossed spring steel outer layers and a steel inner layer, which provides support and thickness to the gasket. Embossments on the MLS gasket allow for proper seal around oil and water passages.
    Phuzion Requirements: Head and Deck surfaces should be within .002” of flatness and have a surface finish of 50RA or finer. The compressed operating thickness of Phuzion is .051”.
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  2. #2
    Slower Than a 3rd Gen juiced99ws6's Avatar
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    Aug 2005
    Cape Coral, FL

    Mystic Teal
    99 Trans Am & 01 CBR 929

    a bit on the pricey side. most of us dont make the power for them to be needed but i suppose it could be worth it

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