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Re: question about GM's
the difference between the 3.1 and the 3100 was mainly in the intake manifold, but there were other electronics and design changes that made the 3100 have higher output than the 3.1, the change in names was simply branding to differentiate the new higher output motor from the older one that had the same displacement and same block.
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Dr. Disque -
Current cars:
2008 BMW 135i M-Sport
2011 Mazda2 Touring
Past cars:
2007 Mazda 6S 5-door MT
1999 Ford Taurus SE Duratec
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