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Wow - I am SO “in” on this one!
I’ve stated several times in prior postings how much I would LOVE to put a 606.962 into my ’95 E300 w124 chassis to replace the N/A 606. That would be the ultimate daily driver, even without any high-performance mods.
I’ve done some Dr. Frankenstein swaps in my younger days, but circumstances will likely preclude me from doing anything like that in the future - so instead I will be living vicariously through you.
Since you are starting with an ’87 chassis there will be some differences that need to be addressed, but nothing insurmountable – especially in light of your background and experience. I started to do some preliminary research (a.k.a. daydreaming) into some aspects of a swap on my ‘95. I was thinking of using the long-runner intake manifold from the N/A 606 (minus the flaps) and substituting the large diameter crossover pipe with a long water-to-air intercooler with the same basic positioning. (Reducing the tract length vs. the stock w210 front mounted IC setup.) The N/A pump linkage setup would be pretty much plug & play too.
You may be surprised at how lively the car would be with even a relatively stock 606.962 setup. If you are going to go full-tilt with a larger turbo and Dieselmenken’s pump though, you will gain some lag which adversely affects the day-to-day drivability in congested traffic; but conversely would be a lot of fun in open spaces. But why am I telling you this; you probably are already fully aware of the tradeoffs.
You may also want to consider that the cams from the N/A engines provide a higher RPM power band which again will kill some low end, but may compliment the high CC pump and bigger turbo once it’s on the boil. It all depends upon what you are ultimately going after. Are you looking for big numbers and twisted drivetrain components, or something as a sprightly yet economical daily driver?
Best wishes to you in your pursuit!
__________________
Current rolling stock:
2001 E55 183,000+ Newest member of the fleet.
2002 E320 83,000 - The "cream-puff"!
1992 500E 217,000+
1995 E300D 412,000+
1998 E300D 155,000+
2001 E320 227,000+
2001 E320 Wagon, 177,000+
Prior MBZ’s:
1952 220 Cab A
1966 300SE
1971 280SE
1973 350SLC (euro)
1980 450SLC
1980 450SLC (#2)
1978 450SLC 5.0
1984 300D ~243,000 & fondly remembered
1993 500E - sorely missed. 
1975 VW Scirocco w/ slightly de-tuned Super-Vee engine - Sold after 30+ years.
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