justbake
Well-Known Member
The heads are different, the valvetrain is different, and the headgasket is different so this would be a rather difficult swap just to save a buck.An idea just crossed my mind...
For any 2020 owners who want the 2021 cylinder head (and exhaust manifold) but wants to save a buck... Wouldn't it be possible to just use the older B58 cylinder head and manifold. It seems to be unchanged between B58B30M0 and B58B30M1.
I.e. from a 2016-2019 340i, 440i, 540i, 640i or 740i
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