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12V Head Interchangeble

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Old 03-18-2008, 01:25 PM
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Default 12V Head Interchangeble
Are the 12V single cam heads interchangeable? I have an AAH engine and I'm looking for a head. I seen a few from a 1996 Audi A4 V6, but I was not sure. I would think it could work.
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Old 03-18-2008, 01:39 PM
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Default In the "strictest" sense yes but I doubt you'll like it...
Cams would have to be swapped to either matched AAH or matched AFC in both heads. Breathing would be vastly different between left and right heads due to smaller valve stem diameters in the AFC and larger in the AAH.

Wouldn't feel a very balanced motor as left and right banks would be making dissimilar HP/TQ in spite of both engines having almost identical HP/TQ ratings from the factory.

The good news is however that either engines heads are swappable right-to-left and/or left to right.
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Old 03-18-2008, 01:42 PM
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Should I just have a shop add new valve stems to the old head then?
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Old 03-18-2008, 01:44 PM
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Re: Sorry, I meant valves.
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Old 03-18-2008, 01:49 PM
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yes, if AAH valves arent reuseable and either new AAH or bored over-size AFC valve guides
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Old 03-19-2008, 08:12 AM
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Default I have a set of 12V heads if you are intrested.....
<a href="http://s4.photobucket.com/albums/y145/pharoah007/?action=view&current=DSC03210.jpg" target="_blank"><img src="http://i4.photobucket.com/albums/y145/pharoah007/DSC03210.jpg" border="0" alt="Photobucket"></a>
<a href="http://s4.photobucket.com/albums/y145/pharoah007/?action=view&current=DSC03212.jpg" target="_blank"><img src="http://i4.photobucket.com/albums/y145/pharoah007/DSC03212.jpg" border="0" alt="Photobucket"></a>
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Old 03-21-2008, 09:51 AM
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still have those, huh? and how much for'em?
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Old 03-21-2008, 03:34 PM
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not here, shoot me a Email
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