Thanks so much MB DOC!
I measured my pistons, and they indeed are the 10.5:1 Euro versions, so my engine is indeed a euro.
Do you by any chance have the following measurements?

1. Headgasket thickness when compressed. From my calculations it should be around 1.5mm.

2. Block height (from center of crank to block surface). My calculations show 227.5mm

3. 16V head chamber volume. My calculations come up with 55cc.

How close am I?

Thanks again!!

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87 190E EVO II Turbo