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Old 06-01-2003, 11:47 AM
Blu 420Sel's Avatar
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Join Date: Feb 2003
Location: Connecticut
Posts: 274
Hypothetical Engine upgrade...

Surfing around ebay I found an interesting auction. Its a 97' E420 engine and tranny. See here:

Or for big bucks, this one:

I'm not planning on getting it but it got me wondering, would it be possible to upgrade a W126 with a newer powertrain? Or is it a just whole different animal?

I found this rather amazing conversion done on MBcoupes with a 560SEC.

It seems like a SEL would be easier to upgrade since the engine compartment is roomier than an SEC. What contemporary engines could fit in a W126?
1988 420SEL 170K
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Old 06-01-2003, 01:28 PM
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Join Date: May 2002
Posts: 403
With enough money anything is possible. If you've studied the SEC page you'll see that there is major wiring that must be dealt with. I think this is harder to deal with than the actual fitting of another type of engine.

I think the 97' E420 engine and tranny would really be nice being that you'd get better MPG and have a nice smooth shifting 5 sp tranny. Personally I find the performance of the previous generation MBZ unacceptable!
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