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Old 01-29-2012, 10:52 AM   #1
Fernando_221
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2.3 x 2.5 block external dimension

Hi,

Does anyone knows if external dimensions between the 2.3 and 2.5 block are the same??

Thanks


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Old 01-29-2012, 11:27 AM   #2
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If you asking if the height is the same yes it is , mounting points all seem to be the same as well , you will have issues with the VCT need to change this to adj cam gears

Tom
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Old 01-29-2012, 12:03 PM   #3
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Thanks Tom.

Also, is the timing cover the same?? And the drive shaft mounting??

Thanks again,
Fernando
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Old 01-30-2012, 07:34 AM   #4
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It looks like the 2.5 block is a 2.3 bored, right?? Do you know the 2.5 rod lenght?? Is the same of 2.3 ??

Thanks
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Old 01-30-2012, 11:10 AM   #5
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Found some info:

http://forum.miata.net/vb/showthread.php?t=441198

http://forum.miata.net/vb/showthread.php?t=436234

But the 2.5 rod lenght stills unknown.
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Old 01-30-2012, 02:26 PM   #6
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Some good info on the Duratec 25 (I4) can be found here: http://en.wikipedia.org/wiki/Ford_Du...ine#Duratec_25

Also,

Quote:
The bore and stroke have increased over the 2.3 L to 89 mm (3.5 in) x 100 mm and as such now displaces 2488 cc.
Doesn't necessarily answer rod length but the stroke has increased.
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