I found a 91 350SDL that I am thinking of buying to steal parts from.

I have read that MB replaced a lot of failed 3.5L OM603 engines with 3.0L OM603 engines.

How can I tell if the motor in the car is the 3.5 or the 3.0?

I want the 3.5L IP and the 55 trim T3 turbo from the 3.5 to put on a different motor.

Thanks

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