240-300 engine swap - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 01-02-2015, 07:38 AM Thread Starter
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Date registered: Jan 2015
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240-300 engine swap

I have a 1975 240D, 4 speed, 4 cyl that I would like to pull the tired engine out, and install a 5 cyl from a 1976 300d automatic. Both are non turbo of course. I am concerned that I will run into a flywheel problem or some other issue. I want to keep the 4 speed in the 75, so will the flywheel from the 4 cyl bolt up to the 5 cyl? That`s my biggest concern. I guess I could use the automatic, but I don`t want to. Thanks in advance
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post #2 of 2 (permalink) Old 01-02-2015, 11:00 AM
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Is it possible that your trans is used with the 300 motor? If so, you would expect no problems. Right?

Get the trans part number:
- either use your VIN and the EPC, or
- get the number from the trans itself.

Take the part number to the EPC to see what all models it was used with.

For all you know, it is a trans that was used with the 300 anyway.


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