[W126 Coupe] W126 Engine ideas

[David Fatovic]

Here is a question I would like to start exploring the possibilities for.

I have the 5.6L US engine and tranny out of my destroyed '91 560SEC laying 
around.  When I pulled the engine, I pulled it as one piece, and have most all 
electrical parts for it.  I am looking to put it eventually in my "work in 
progress" '85 500SEC.  

Here are my thoughts/questions.  I like the M117 engine and feel it is a strong 
power plant, but as we all know the fuel injection is a bit archaic.  I would 
like to explore the options of taking the engine and putting on a "new" 
aftermarket fuel injection and electronic system.  Possibly incorporating an ECM 
and fuel rails.  

I know some out there will say just either stick to original, or go to an M119 
engine in total.  Some of this is because I have the powerplant, some of this is 
because I want something unique, and some of it is because I want to see if it 
can be done.  

Question is, where to start looking?  Is one major problem going to be 
injectors?  If I put in a complete unit I won't have to worry about integrating 
into any of the existing electronics.

Hope that was murky enough for everybody!

David