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Thread: metal HG's

  1. #1
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    Default metal HG's


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    what brand of metal HG's are people using on there 16v 4ag ?
    hachi roku

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    Veteran timbo's Avatar
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    TRD

    Good quality and not very expensive really. Someone did tell they leak and I won't have anything but problems and recommended cometic, but well over 12mths now the TRD hasn't had a problem. I am probably a bit biased towards Toyota/TRD as I have a lot on the car already, I figured TRD would be the best as they know best! Advantages from using others like cometic is the availability of different bore sizes.

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    Samq has the TRD ones...

    I've always used genuine gaskets, I also have the opinion that its better to blow a hq than destroy a head as the head gasket should only blow if something is wrong.
    Ae86 Drivingclub - Toyota AE86 Car Club where AE86 | KE70 | Toyota 86 / GT86 | Subaru BRZ | Scion FRS owners

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    Apexi. Cosworth is good too. but that's from SR20 guys. Dunno about TRD stuff.

    Cometic used to be real picky. I dunno if they still are. Both surfaces needed to be machined flat, otherwise they leak.

    Headgaskets will "push out" when you make enough power. THEN you go to metal Bad tuning will blow head gaskets too, and metal will take more before it blows.

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    Moderator dove grey 64's Avatar
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    toda makes/made them too.
    i'd go for a trd one, easy to find,cheap and proven

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    I have the the TRD gaskets for $99 now, 3 left I think
    My website: SQ Engineering - 4AGE and 3SGE upgrade/replacement parts

    - SQ Engineering on facebook -

    Please e-mail to contact me instead of sending a private message on here.

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    That is ridiculously cheap Sam!

  • #8
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    i had a trd .5 metal gasket and had it put on properly but just had drama's with it leaking so i thought i might see what else people was running. what size is the ones your selling sam ?
    hachi roku

  • #9
    Gunner
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    Id be looking for issues with your head and block (poorly machined/prepped, warped etc etc) before blaming a hg leak on the gasket.

  • #10
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    Or even head bolts that were out of spec?

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