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Thread: 4AGZE block - 4AGE head? -help

  1. #1
    Senior Member shuvke70's Avatar
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    Default 4AGZE block - 4AGE head? -help

    Hi all

    I currently have a turbo bigblock 4AGZE in my ke70 with a stuffed head.

    I have found a number of bigport 4AGE heads but am unsure if they are the same and if/ how much modification is required to fit one up.

    So my question is will a bigport GE head fit on ZE block?

    And if anybody is selling a head in Adelaide or is willing to post one could you PM me?

    Any info, help, tips or links etc would be highly appreciated.

    thanks

    Also i need a new head gasket so i was wondering if a 1mm TRD metal head gasket, or something along those lines would be suitable for my motor, which is making 150kw's on about 15-17 psi

    thanks
    -Jarryd

  2. #2
    Veteran Golberg's Avatar
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    Heads will go on any bottom ends and vise versa. Is your GZE a bigport to being with? If so you'll have no issues at all. I can't remember if the cams are any different in the GZE over the GE, otherwise there'd be no difference.

    Its slightly more complicated if you have a small port GZE and you are trying to put a bigport GE head on it. You'd need to block the oil drain at the back of the block on the drivers side.

  3. #3
    Senior Member Hen may possibly be a nut's Avatar
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    GE and GZE heads are identical bar the cam covers (one says supercharged surprise surprise).

    The only issue is as Golberg says. If you get a bigport head, not issues, smallport head will fit but means messing with intake manifold, oil drain, injector rail etc, etc, which differ between the two.

    Hen

  4. #4
    Senior Member shuvke70's Avatar
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    yea thanks guys

    but yes to my undestanding the only differences are the rocker/ cam covers and the duration of the cams. just thought I'd double check before making a final purchase.

    my only other question is a cosmetic one. can u interchange the supercharger cam covers with just the standard GE ones?

    i read somewhere that theyre not but I myself couldnt see why you couldnt

    thanks

    -Jarryd

  5. #5
    Veteran Golberg's Avatar
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    I don't see why not, you might just have to change the threaded stems which come up from the cam caps to suit the covers.

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