M20b25 for M20b27

[Bimmerfanatik]

Yeah, I'm probably the only one that's even considered this swap, but circumstances leave it to be the best option.

Anyone ever done it before? I have a running 85 eta 5 speed 2 door that I'd like to tear down and put into a 91 i 4 door auto.

[BavarianBimmer]

IIRC flywheel swap / C101 connector issue / and harness swap i think