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Thread: Cylinder head removal and replacement parts

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    Sr Member Kiyomi's Avatar
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    Default Cylinder head removal and replacement parts

    Hey all,

    I plan on getting the cylinder head ported and polished in the near future. In order for this to happen, i either need to remove the one already in the car or go to the wreckers and get a used one for less downtime. a third option is buying the cosworth made one. still deciding on this.

    I am still learning as I go, so im wondering what parts I need after the removal of the cylinder head. Do i need to get new valves, springs, head studs and gasket? Been reading up a bit and it says that many parts of the engine are torqued for a one time use. If anyone could make a general list of parts needed in order for the engine to be put safely back together, it would be much appreciated.

    already found a few reliable places for porting/polishing thx to Celestspeed, Nextmod, and my dad.

    anyways, thx for reading

    cheers,
    Justin
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  2. #2
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    CelestSpeed3's Avatar
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    Default Re: Cylinder head removal and replacement parts

    You will just need new crank washers a crank bolt and a head gasket. You can get upgraded head studs if you want but I don't think you "need" them

    I would suggest going to a wrecker. I think the heads on all 2.0, 2.3 and 2.5 motors may be the same.


    EDIT: Just looked it up the Cosworth head will cost you about $4000, about double what it would cost youth get a use one done. You should also get cams to take advantage of the Cosworth head ($700), the Cosworth head will also need new buckets for the springs and those can be anywhere from $25-$30 each depending on the size (~$500) on top of that you need someone to check and install the buckets. You can do it yourself but it is a pain in the ass. So to do a Cosworth head properly you are looking at ~$5250 vs less than half of that if you just port and polish a used head. I don't know about you but may be 2 weeks or a rental car is around $500 and you just offset the cost of the used head and can still get around.
    Last edited by CelestSpeed3; 12-30-2012 at 11:19 AM.
    Want to work on your car but not sure how, send me a PM. Learn the way of Nator.

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    Default Re: Cylinder head removal and replacement parts

    I can't wait to see it all done!! Excited for you. Can't wait get back on the track with you , since we had so much fun last time. =)
    2010 Subaru STI

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    Moderator loki's Avatar
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    Default Re: Cylinder head removal and replacement parts

    At this point I really suggest buying a speed3


    Although a properly done n/a is awesome

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    bitch flakes....yummy greyseason's Avatar
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    Default Re: Cylinder head removal and replacement parts

    subbed, kiyomi`s car always makes me weak
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    Sr Member Kiyomi's Avatar
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    Default Re: Cylinder head removal and replacement parts

    Quote Originally Posted by loki View Post
    At this point I really suggest buying a speed3

    Although a properly done n/a is awesome
    believe me, ive thought about it more than once. but i plan on having this car forever, and it will be staying n/a. eventually turn it into a designated track car. until then, baby steps.

    @kevin, cant wait till the next track session. so much fun last time.

    @ greyseason, lolz.

    @ Celestspeed, thx for the info. will be looking into it over the next few weeks. hopefully there will be time for us to meet up so i can get a proper checklist of whats needed so i dont get the wrong parts etc.

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    Armchair Detailer Jackal's Avatar
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    Default Re: Cylinder head removal and replacement parts

    I am interested to see how efficient/inefficient the present cylinder head is. How much more hp do you think this engine can produce if you do this?

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