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Re: FS: Worked A12 GX head
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$40aud. Has valves, retainers and collets but no springs. I binned them as they were old and broken and needed replacing.

Posted on: 2010/8/1 12:06
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Re: FS: Worked A12 GX head
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What are freight costs like to send to Victoria, Australia?

Valves and springs included in price?

Posted on: 2010/8/1 11:32
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Re: FS: Worked A12 GX head
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chambers are 20cc which works out to be around 11:1 CR on standard dished pistons.

Posted on: 2010/8/1 10:16

Edited by Volodkovich on 2010/8/1 11:20:30
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Re: FS: Worked A12 GX head
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Posted on: 2010/7/29 8:48
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Re: FS: Worked A12 GX head
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CC'ing this week. Someone must be interested!!

Posted on: 2010/7/27 20:36
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Re: FS: Worked A12 GX head
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Still for sale.

Posted on: 2010/7/5 2:55
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Re: FS: Worked A12 GX head
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No one interested? Still in the process of getting a burette to measure chamber volume.

Posted on: 2010/4/30 6:06
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Re: FS: Worked A12 GX head
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Judging by the amount of material left around the thermostat housing it's getting close to what mine is.

That's why I'm running a steel shim plate.

BTW it is a GX head.

Posted on: 2010/4/18 11:46
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Re: FS: Worked A12 GX head
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Hardness was checked. Was all around 80 Rockwell hardness and dropped to 70 between 2 and 3. I was told by my engine re-conditioner that this would be fine and the general lower accepted limit for hardness is 55.

This was on a road car, running an 80degree Nismo race cam and ran pump gas (98 octane here). But i agree it suits a race car. I was going to run it on a road car using E85 ethanol blend fuel.

Threads are all fine, I have not pulled out the manifold studs though.

I will see if I can measure the chamber volume. Might take a few days though.

Cheers

Posted on: 2010/4/18 10:52
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Re: FS: Worked A12 GX head
No life (a.k.a. DattoMaster)
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Those recesses from the head bolt washers around the head bolt holes are typically a good indication of the material hardness of the head, yours looks like it has had a fair amount of heat through it and that it might in fact be soft.

EDIT: I have just re-built mine and it's almost certainly on it's last legs. Same situation really, recesses around head bolt holes, pulled threads etc etc.

To run this on a road car you'd have to do some serious thinking about deep dish pistons or thick head shims, relying on a camshaft won't really help things along.

I thought my head was the most skimmed I had ever seen.... and now I've just seen yours.

I am interested in it;

Can you confirm chamber volume? They look to be around 18cc.

Are all the threads in tact?

Are you negotiable?

I have also sent you a PM.

Posted on: 2010/4/18 10:28
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