Thread: N13 vs B38 power
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      09-08-2017, 12:18 PM   #9
jabugui
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Drives: f21 lci 120iA
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Other difference is N13 has cyl bores with steel sleeves, whether Bxx design include a covering process of steel deposition over aluminium hole (see technical training from bmw) .

How will all this appear when it comes to motor overhaul?
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