Note: We have a more comprehensive analysis of the BMW B58 engine, click and view it:
Detailed Analysis: The BMW B58 Inline 6-Cylinder Engine
The upcoming 2016 BMW 340i will be equipped with a 3.0L turbocharged I6 engine (code name: B58). This is not the same N55 engine which is widely used in many BMW cars at this moment (like 235i/335i/435i/535i/740i etc.), instead the B58 engine is an completely-new design and has many fundamental differences than the N55.
Below are some analysis based on the engine structure images released by BMW.
1. The biggest change in the B58 engine is its block is a closed deck design (while the N54/N55 is an open deck)...
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