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CoupeDogg
Re: a15 block mazda head
#143
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Long shot but got anymore of these kits?

Posted on: 2021/10/28 23:07
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Mattndew76
Re: a15 block mazda head
#142
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Sorry.

Will keep it Mazda related.

Posted on: 2016/1/13 18:03
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D
Re: a15 block mazda head
#141
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the Bimmer head is for the Austin A series not Datsun

we should chit chat on your thread for other options
lets keep this thread for mazda head candidates

Posted on: 2016/1/13 13:30
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ddgonzal
Re: a15 block mazda head
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You won't lose any compression if you change A12 head for A14 head. But A14 head only make 85 HP maximum unless extensive porting is done. The DOHC 16-valve head makes 104 hp bone stock.

Posted on: 2016/1/13 7:58
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Mattndew76
Re: a15 block mazda head
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I have an A12 factory head with some mild port work and that is what I am going with on my Super charge build. I have to shop a new CAM.

The DOHC project is on an engine dolly, and will most likely sit as a display even after it is finished.

Its up to you on what direction you feel is good for your enjoyment.

Posted on: 2016/1/13 5:13
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tboe0
Re: a15 block mazda head
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Would it be better to try and get a a14GX head ?
Or wold I loose too much compression and therebuy not be worth it? I guess you could machine a cupple of mmm. of it to retain compression but get much better flow?

Posted on: 2016/1/13 5:05
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Mattndew76
Re: a15 block mazda head
#137
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Nothing is bolt right up. With all of these DOHC setups you have to reroute oil and water passages, and block some off on the engine casting.

All of them take some in-depth work and massaging.

Posted on: 2016/1/13 5:02
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tboe0
Re: a15 block mazda head
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Quote:
Mattndew76 wrote:
The K100 BMW bike head will fit the A12

http://twinkam.co.uk...


Like bolt right up?

Or do they have to go through those guys for a rebuild / conversion ? Caus they are fairly cheap on ebay, but through them its a little pricey ?

Posted on: 2016/1/13 4:57
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Mattndew76
Re: a15 block mazda head
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The K1200RS BMW bike head will fit the A12

http://twinkam.co.uk/epages/191f6b26- ... a0c9099c1/Categories/2/12

Posted on: 2016/1/13 4:41

Edited by Mattndew76 on 2016/1/13 4:57:37
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tboe0
Re: a15 block mazda head
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Sooooo... There isnt a DOHC for the A12 that doesnt require it to bore'ed ALOT ?

As the A12 that sits in my B210 ad the moment is the only one i've got, I would like to make it, the best it can be :)

But I live in Denmark, so turbo, isnt going to be easy to get legal, but headswap efi ect is OK..

And compared to fx a port job(which cost alot around here), this would be a better project :)

Posted on: 2016/1/13 3:47
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