I appreciate the responses. I saw an ad for a '91 300SL, "new clutch, etc." and just wondered if perhaps the 3.0 l's with 5-speed manual in the SL & W126 cars were close enough to swap tranny's...

Wow! Was I surprized at how many different versions of 103 vs. 104 vs. 116 & automatic tranny's there were in just a few model years.

Again, I appreciate the responses: it looks like a 116 motor and a manual transmission is possible but rather expen$ive and complicated. Maybe an entire swap with a later V8 and a 5-speed automatic out of a wrecked S-Class (or even an SL?) might be more practical and not a whole lot more co$tly?

I have seen the swap from a later model SL into a W126 Coupe and it looked as if it was a very comprehensive and professional job. I have to admit I still prefer the W126 Sedans over later S-Class cars because of their simple, basic engineering excellence.

Cheers!

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'91 420 SEL @ 199K, '92 SVX @ 181K, '93 SC400 @ 86K, '93 Kaw ZX-11 @ 30K, '87 F250 @ 181K , 2001 Valkyrie Interstate @ 6K, Y2K Honda NightHawk 250 with 1.5K, '88 420SEL I.@ 179K & the 2nd latest, an '88 420SEL II.@ 210K runnin' parts car, '85 F150 300/NP435