It does look my parents want to swap the from my wrecked W126 to their W107. Is there anything i need to do before dropping the motor in? The car was hit head-on by a Honda Civic, so the radiator is broken, should i pull the heads and check them just in case as well replace the head gaskets?

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1984 380SL-driving and service privileges.

also, keep the K-Jetronic from the 380 motor, or convert the car to the 420's KE-Jet?

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1984 380SL-driving and service privileges.