S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

W126 500 SEC

Old Oct 9, 2011 | 03:01 AM
  #1  
ChrisCT's Avatar
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Mercedes 500SEC W126 & Vito 115 CDi
W126 500 SEC

Hi everyone,

I need some advise regarding brake and probably engine upgrade.
Firstly the brake:
the original is pretty weak, I am sure I am not the only who already faced with this issue. I would like to upgrade it for the 4 pistons caliper at the front, maybe from the 500 SL from 1992.
Is there anybody who did it before? Experience? Does it worth the hassle?

Secondly engine:
I am about the take the cylinder heads off to fix the hydraulic lifters as well as change all the sealing in it.
At the end it is quite pricey as I do not want to buy after-market parts but original. Actually it will cost me almost the same amount of money like buying an another engine, maybe 500 from 1992 SL. Than I would gain an extra 100 HP, that I would be very happy with of course.
However I do not know what else do I have to modify on the vehicle to be able to install the newer engine.
Is there anybody who did it before? Will the gearbox and the other mechanical parts able to handle the extra power such differential, CV etc.

I would appreciate some advise.

Thanks,
Chris
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Old Oct 14, 2011 | 03:39 PM
  #2  
ZaxW126's Avatar
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From: Dallas,Ga.
1980 Mercedes 280 SE W126, Euro spec car! 1995 E320, payed $500 for it!
Check Youtube for videos and references to this conversion. (M119 in W126 chassis)
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Old Oct 15, 2011 | 02:56 AM
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Mercedes 500SEC W126 & Vito 115 CDi
Thanks for tip. I checked so I know it is definitely possible. However I would need, if possible a step by step guideline from anybody, who did it, so I do not how to figure out every small trick.
Thanks again.
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