New Mercedes Powerplant

Mercedes-AMG 6.3 Liter Naturally Aspirated V8 Unveiled

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The World's Most Powerful Normally Aspirated Eight-Cylinder Engine Made by Mercedes-AMG

Mercedes-AMG has taken a completely new departure: the new AMG 6.3-litre V8 engine is the first in the world to combine the high-revving concept with a large displacement. Developed entirely by AMG, this high-performance engine has a displacement of 6.3 litres and generates an output of 375 kW/510 hp at 6800 rpm, plus a maximum torque of 630 Newton metres, which makes the new power pack by AMG the world’s most powerful naturally aspirated eight-cylinder production engine. Thanks to its large displacement, the V8 by AMG develops around 20 percent more torque than comparable naturally aspirated engines in this performance class.

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Made completely from high-strength aluminium, this naturally aspirated V8 engine has a wealth of exciting features derived from motorsport, and impressively documents the successful motor racing history of AMG. Together with a variable intake manifold featuring two integral throttle flaps, the vertical arrangement of the intake and exhaust ducts ensures perfect cylinder charging. Bucket tappets in the cylinder heads allow a stiff valve train and therefore high engine speeds. Variable camshaft adjustment, a particularly rigid closed-deck crankcase and cylinder walls with a new, revolutionary LDS coating are further attributes of this ultra-modern V8 engine made by Mercedes-AMG.

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The high expectations of AMG customers and the impressive history of AMG eight-cylinder engines were both an incentive and an obligation for the engineers and product planners at Mercedes-AMG GmbH to come up with a superlative new V8 power unit. A mere glance at the key technical data shows that this has been achieved: from a displacement of 6208 cubic centimetres, the AMG V8 aluminium engine develops a peak output 375 kW/510 hp at 6800 rpm and a maximum torque of 630 Newton metres which is available from 5200 rpm. The maximum engine speed is 7200 rpm.


Keys figures at a glance:

Displacement: 6208 cc

Bore/stroke: 102.2/94.6 mm

Compression ratio: 11.3 : 1

Output: 375 kW/510 hp at 6800 rpm

Max. torque: 630 Nm at 5200 rpm


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This unique combination of a fast-running concept and a large displacement achieves the best of both worlds: exhilarating flexibility accompanied by high torque at low engine speeds. The driver experiences the decidedly sporty character of the engine in the form of great agility and dynamic responsiveness in all engine speed ranges. The new AMG V8 already delivers 500 Newton metres to the crankshaft at 2000 rpm, while the maximum of 630 Newton metres is on tap at 5200 rpm – more than any other naturally aspirated engine in this output and displacement class. In short, the new AMG eight-cylinder guarantees dynamic acceleration, rapid intermediate sprints and sheer driving pleasure at the highest level.

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Completely autonomous development from Affalterbach

In design terms the new eight-cylinder engine by Mercedes-AMG is the first completely autonomous development to have no features or shared parts whatsoever in common with other eight-cylinder units by Mercedes-Benz. The new 6.3-litre unit differs from the other AMG V8 engines based on Mercedes designs in the distance between cylinders, the crankcase concept, the sophisticated intake and exhaust manifolds and the valve train; the bore/stroke ratio is also a completely new departure for Mercedes-AMG.
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The new powerpack is produced at the ultra-modern AMG engine workshops, according to the "one man, one engine" philosophy. This means that a single technician assembles the complete engine by hand – as witness his signature on the engine’s AMG badge.

The all new Mercedes-Benz AMG website (http://www.mercedes-amg.com/)

Bad ass motor.

I find it interesting the intake manifold looks like an LS2....I wouldn't be suprised at all if the engine is basically the same as what an LS1 with DOHC would be.

6208cc = 6.3L :think:. They must have the Ford boys doing their math.

GM needs to find an extra 6 ponies in their ZO6 so they can claim the highest HP N/A V8 :D

GM needs to find an extra 6 ponies in their ZO6 so they can claim the highest HP N/A V8 :D

Or 50.

Also more Germanic chest-pounding: "High revving = 7200RPM redline"

LS7 is 7000. With pushrods. Which is damn close.

I find it interesting the intake manifold looks like an LS2....I wouldn't be suprised at all if the engine is basically the same as what an LS1 with DOHC would be.
Me Too! And also find it interesting, damn near every V8 intake seems to resemble the LS1/LS2 style intake!

I wonder how much that thing weighs compared to the ls7... looks absolutely massive.

I find it interesting the intake manifold looks like an LS2....I wouldn't be suprised at all if the engine is basically the same as what an LS1 with DOHC would be.


The DOHC LS1 is the Hemi 5.7 from DCX :)

The DOHC LS1 is the Hemi 5.7 from DCX :)

Uhh, the Hemi is a pushrod motor. :o

The DOHC LS1 is the Hemi 5.7 from DCX :)The 'hemi' 5.7 (and 6.1) is not an OHC engine like the odd-ball 4.7. It is an ohv/pushrod engine.

:)

I find it interesting that it's only rated at 5 HP more than the Z06 engine....HP war anyone?

Me Too! And also find it interesting, damn near every V8 intake seems to resemble the LS1/LS2 style intake!

And the LS1 intake, in turn, resembles a whole lot of V6 intakes! It's downright amazing!

I didnt even get past this one, so forgive me for ignoring the rest of the article.

Mercedes-AMG has taken a completely new departure: the new AMG 6.3-litre V8 engine is the first in the world to combine the high-revving concept with a large displacement.

Yay. The krauts figured out that if you spin a bigger motor faster, you dont have to use a blower. Congradubleepinations. (Can I say what I wanted to here? Trying not to get banned...)

Forgive me for not jumping with joy that mercedes can build a 6.3L OHC engine that makes power within spitting distance of ZO6, for likely twice as much money, and with more weight. I mean, look at the accessory section on that thing. Turbine engine gearboxes are less complicated. :rolleyes:

Forgive me for not jumping with joy that mercedes can build a 6.3L OHC engine that makes power within spitting distance of ZO6, for likely twice as much money, and with more weight.

I'd like to know the external dimensions and weight as compared to the LS7. My guess? It's a lot bigger.

It's official! The LS7 is now a slow piece of crap! ;)

It's official! The LS7 is now a slow piece of crap! ;)

:lol:

Just looking at that motor gives me a headache. Its a V8. They usually just go fast for cheap with little. But I wont complain when another v8 is added to the world, its much better than the alternative.

A Mercedez 6.3L engine with 510 HP and 464 lb-ft of torque.

BMW has 5.0L V10 that makes 507 HP and 384 lb-ft of torque.

Z06 makes 505 HP and 470 lb-ft of torque with 7.0 L.

Mercedez beat GM for the torque with .8L less (7011 vs. 6208), but to advertise the "invention" as "the new AMG 6.3-litre V8 engine is the first in the world to combine the high-revving concept with a large displacement."

No, they are not the first in the world. What about all those days of C5R, or even the above quoted example of BMW (relatively large 5.0L displacement), or even 2006 Z06.

I wouldn't have a problem if they said "among the first" or "one of the first"

All those extra moving parts for basically the same performance as the LS7.

It's impressive, but I'm more impressed with the pushrod LS7.

I'd like to see the TQ curve and fuel economy rating, and see how that compares!

Dan

Crappy article with bad wording or not, I still think the motor is a pretty nice piece.

I would like to see more specs on it though, like weight for one, amongst other things.

That seems like the difference between American and German engineering. Americans make it as simple as possible and Germans make it as complex as possible.

Crappy article with bad wording or not, I still think the motor is a pretty nice piece.
Yeah, I'd hit it! ;)

But seriously, I think we all are curious about the weight.

AW has it at 438 lbs.

All those extra moving parts for basically the same performance as the LS7.

It's impressive, but I'm more impressed with the pushrod LS7.

I'd like to see the TQ curve and fuel economy rating, and see how that compares!

Dan
And yeah, what he said!

AW has it at 438 lbs.

GermanCarFan also has the dry weight as 199kg (438lbs).

That's actually good. I thought it was going to be in the 500's easily.

Impressive engine.

LS7 has the advantage by 0.7L.

The 6.0 LS2 should be able to perform at these levels with a bigger cam, maybe intake/heads I bet it could. That's all they've done here, I wonder how street friendly it is???