[W126 Coupe] V12 SEC

[Jim Nowak]

Thanks for sharing!

Jim

--- Satish Tummala <satish at tummala.net> wrote:
> You forget,
> 
> The 119 cost me $5000 total (no labor cost),  The
> V12 cost me about $8K
> (no labor cost).  If I sell the 119 with trans, it
> will cost me around $3K
> net difference to upgrade to the V12.  I spent
> nearly $16k for the 6.0L
> 117 motor, got $13,500 back so not much difference.
> 
> That makes $5K plus $2500 = $7500 TOTAL over 6
> years.  That upgraded the
> whole engine, transmission, all belt drive stuff,
> computers, etc.
> 
> Of course, if someone else was to have it done, it
> could approach $100K
> easy.  I would estimate $7000-$10000 in just labor
> alone for the V12 +
> engine.
> 
> I certainly wouldn't advise anyone to go buying new
> V12s, rather used or
> better yet, a whole wrecked car would be best.
> 
> The 10 computers plus EZLs and harnesses are $17500
> from Mercedes.  The
> long block with belt-drive items.  The two throttle
> motors are $7000 for
> the pair, the smog pump is $2000 with the clutch,
> etc., etc.
> 
> Definately, buy used stuff and go through it all.
> 
> Also, you CANNOT use a W140 V12 engine for direct
> fit.  The upper oil pan
> will NOT work at all.  It MUST be a 600SL
> motor/lower oil pan.  I bought
> an S600 motor and had to swap out the upper and
> lower oil pans and oil
> pump.  Unless you have some connections, be prepared
> to pay $2000 for that
> setup alone.
> 
> The A/C manifold from the W140 engine will not work
> with the W126 neither.
>  A new manifold from a 600SL is $780.  The air boxes
> from the W140 won't
> work as well.
> 
> However, the W140 V12 has more hp than the R129 V12.
>  The 600SL is rated
> at 389hp, the 600SEL at 402hp.
> 
> Finally, the motor mounts have to be machined from
> aluminum blocks for
> correct fit.  We have a Bridgeport in house so it
> works for us.  We even
> stamped MB part numbers on the mounts for laughs.
> 
> So....buy a whole wrecked car...shop Ebay....that's
> where I bought all my
> engines from so far.
> 
> Satish
> 
> 
> > Holy cow, you must have spent over $100,000 on
> your
> > 560 SEC over the years.
> >
> > Jim