Yes the motor will swap, just mind the accessory brackets as they added an air pump for 1990. '89 or '90 MB also changed the aux fan switches so you may need to just take the '90 long block then attach all your '89 bits to it.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]