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Difference Between Blocks. 

 

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 Post subject: Difference Between Blocks.
Posted: Sun Nov 14, 2004 7:51 am 
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Also, another engine question.

the 3.9 block and the 4.0 blocks Ranging from EA - EL ... any different in between them? ..

The pistons in the 3.9 look about the same size as the 4.0 blocks.

Do the 4.0 blocks have a bigger stroke or anything? ... or is the difference so small you can't even notice a difference .... ?

Antony.
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Posted: Sun Nov 14, 2004 12:20 pm 
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from memory theyre actually the same volume, but they renamed it a larger engine to show that it was actually different.but yeah, im not entirely sure. The head volumes might be different, but that would mean a lower compression

 

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Posted: Sun Nov 14, 2004 12:26 pm 
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The 4.0L has a slightly larger bore.

 

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Posted: Sun Feb 13, 2005 11:05 pm 
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Andrew J wrote:
from memory theyre actually the same volume, but they renamed it a larger engine to show that it was actually different.but yeah, im not entirely sure. The head volumes might be different, but that would mean a lower compression
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Posted: Mon Feb 14, 2005 8:19 pm 
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Bore is slightly differant, EA 91.86mm, EL 92.25mm. Stroke is the same at 99.31mm

Capacity differance was only about 35cc. Personnally I think ford increased it, so they could market it as a 4.0L against Holden's 3.8L

 

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Posted: Tue Feb 15, 2005 9:44 am 
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the au blocks have the integrated sump for the bottom end so u get basically 6 bolt mains and a f**k strong a** bottom end great for turbos............

 

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 Post subject: Re: Difference Between Blocks.
Posted: Thu Mar 10, 2005 10:20 pm 
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au2low wrote:
Also, another engine question.

the 3.9 block and the 4.0 blocks Ranging from EA - EL ... any different in between them? ..

The pistons in the 3.9 look about the same size as the 4.0 blocks.

Do the 4.0 blocks have a bigger stroke or anything? ... or is the difference so small you can't even notice a difference .... ?

Antony.


the 4.0ltr eb-ed used the same block as the ea's but they have been bored out. On my ed it's got 3.9 stamped onto it

 

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