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Discussion Starter #1
Hey,
Has anyone installed an m113k engine on a sec body?
I'm going for this kind of project, if you have any advice then i will listen
 

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1985 500sel and 500sec 2012 E63 1989 Porsche 911
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5,060 Posts
jono at blueridge MB in atlanta i heard is doing one
 

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Go for it.
It's better with a new working engine than a old that don't runs good.

Use a 55amg engine with a stand alone EFI and a 722.6 gearbox with controller from Denmark.

Sent fra min H8324 via Tapatalk
 

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'91 560SEC, '98 SL500
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That is a major undertaking, I own an E55 with the M113K and the thought of installing the engine and trans into my SEC would be a massive.
 

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1985 500sel and 500sec 2012 E63 1989 Porsche 911
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1989 560 SEC - V-8 Kompressor - 95 E320 Estate
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Although some give the M113 a bad rap as they are difficult to rebuild but my local indie is a believer in the engines. His daughter has a w210 with 340k on it and still going strong. The fun project that I'm looking at is the engine and 6 speed manual out of a Chrysler Crossfire SRT6 into a 380SEC as they are pretty much worthless and extremely cheap. SRT6 made 330hp, we are talking about some fun shifting the gears.
 

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2008 E350 110k, 2000 E320 143k, 1983 380SEC 240k
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I have a 380SEC and a neighbor with an M113 and 722.6 he is ready to part out. I also have a screwdriver, an adjustable wrench, a pair of pliers and a bottle jack. So following this thread...
 

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1990 SEC
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Despite the bad reviews it received upon launch, the M113 has proven to be a stout engine with serval examples running 1/2 million miles. I guess many people thought it was a "lesser" engine than the M119 it replaced, having just three valves per cylinder and all.

Anyway, from personal experience I can say that putting an engine in a vehicle never built for it requires a lot of effort. The mechanical issues are probably the most straightforward. It's the integration of the electronics, assuring appropriate cooling, integrating the driver controls, etc. that become challenging.

The M119 that I have has its challenges, and imposed a few compromises (cooling, throttle control, etc.). What does the M113 require for inputs that the W126s were never mean to provide? Does it require a sensor in the differential? Only the '91 W126 models with ASR have those. Does it require input from the ABS? Can the W126 ABS provide the correct signal? What about the crank sensor? Etc.

If these issues don't make you have second thoughts, go for it.
 

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'82 500sec euro, '95 Ford F150
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I have a 380SEC and a neighbor with an M113 and 722.6 he is ready to part out. I also have a screwdriver, an adjustable wrench, a pair of pliers and a bottle jack. So following this thread...
You had me at “Bottle of Jack”
 

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1990 SEC
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95 S600
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Do it! It won't be the most difficult swap.
I wonder what needs to be done for the steering components. Megasquirt and and transmission controller won't be all that crazy.

I believe the m113(k) and 2jzgte are the best swaps for the w126.
 

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1986 560SL with M120 V12 Engine, 1988 560SL Stock
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Hello anyone considering an 722.6 Trans should consider my speedometer tone wheels and sensor. I have 3 available with a compatible VRS sensor. I would also consider having more wheel speed output tone rings made it there are enough people interested.
 

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