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Alloy head or cast iron head? on XD 

 

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 Post subject: Alloy head or cast iron head? on XD
Posted: Sun Nov 14, 2004 5:03 pm 
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Location: Neerim South
VIC, Australia

Hi i was wondering if anybody knew anything about XD's
How do you know if you have a cast iron head or an alloy head
(my engine has aluminium alloy rocker cover on it, that doesnt make it the alloy head does it?)

If anybody knows could you please help.
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Posted: Sun Nov 14, 2004 5:16 pm 
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an alloy head should be visible to be an aluminium coulour? and is not painted,, as far as im aware the cast iron heads were painted black.. could always scratch it with something aluminium will be easy to scratch and leave a nice shiny mark?



-Mitch

 

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Posted: Sun Nov 14, 2004 6:12 pm 
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Cast Iron head & block. First car was XD changed the head on it, and was f**k heavy.
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Posted: Sun Nov 14, 2004 8:23 pm 
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Alloy Head XDs also had an "Alloy Head" badge on each guard.

If you are still having trouble identifying whether its cast or alloy, try sticking a magnet to it. It won't stick to an alloy head.

 

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Posted: Mon Nov 15, 2004 12:26 am 
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About 1/2 way through 1980 they went to alloy heads..
electronic dissy also...

 

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Posted: Tue Nov 16, 2004 11:59 pm 
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The exhaust is different too. it's hard to explain, but the shape of the manifold is different. On a cast iron head, the pipes all come down in the same direction. On alloy, 1,2,3 slope to the back of the car, and 4,5,6 slope to the front. e.g ////// cast iron \\\/// alloy head

but anyways, degrease it. alloy is bright. cast iron is dark
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