Mercedes-Benz M297 engine explained

Mercedes-Benz M297
Manufacturer:	Mercedes-Benz
Production:	1997–2016
Configuration:	Naturally aspirated 60° V12
Stroke:	92.4mm
Block:	Aluminium alloy
Head:	Aluminium silicon
Valvetrain:	DOHC 4 valves x cyl.
Fuelsystem:	Multi-point fuel injection
Fueltype:	Gasoline
Coolingsystem:	Water-cooled
Power:	386-
Torque:	750-
Predecessor:	Mercedes-Benz M163 engine
Successor:	Mercedes-Benz M158 engine Mercedes-Benz M137 engine (AMG)

The M297 is a V12 engine produced by Mercedes-Benz, from 1997 to 2016. Engine code was derived from the CLK GTR's C297 chassis code.^[1]

Design

The M297 is based on the M120 engine but has been tuned by AMG for use in high-performance sports cars. It was offered as a 6898cc version with a bore and stroke of NaNmm, respectively, and was only available in the road-legal version of the CLK GTR.^[2] A 7291cc unit was also available featuring a larger bore of 91.5mm, and was used in Pagani Zonda models until 2016.^[3]

Engines

Displacement	Power output	@ rpm	Torque	@ rpm	Years
68981NaN1	4640NaN0	6,800	7310NaN0	5,250	1997-1999
72911NaN1	3860NaN0	5,500	7500NaN0	4,000	1997–2001
	4080NaN0	5,900		4,050	2001–2006
	4420NaN0	6,150	7600NaN0	4,000	2004–2008
	4780NaN0	6,200	NaN0NaN0		2006–2011
	4920NaN0				2010
	4980NaN0				2009–2010
	5590NaN0	8,000		3,900	2012–2016
	588.50NaN0				2017

464 kW version

• 1997–1999 CLK GTR Straßenversion (6.9 L)

488 kW version

• 1998 CLK GTR Straßenversion SuperSport (7.3 L)

450 kW version

• 2002 CLK GTR Straßenversion Roadster (6.9 L)

Pagani Zonda

M297, the most powerful iterations replaced the M120 in the Pagani Zonda, powering every single version of the supercar (there were many) built from 2002 onwards.^{[4] [5] [6] [7] [8] [9]}

442 kW version

• 2005–2008 Pagani Zonda F

478 kW version

• 2006–2011 Pagani Zonda F Clubsport
• 2006–2009 Pagani Zonda Roadster F
• 2009 Pagani Zonda PS

492 kW version

• 2010 Pagani Zonda Tricolore

498 kW version

• 2009–2010 Pagani Zonda Cinque
• 2010 Pagani Zonda Cinque Roadster
• 2010 Pagani Zonda HH

559 kW version

• 2012 Pagani Zonda 760
• 2012 Pagani Zonda 760LH
• 2012 Pagani Zonda 760RS
• 2012 Pagani Zonda 764 Passione
• 2014 Pagani Zonda LM
• 2014 Pagani Zonda X
• 2015 Pagani Zonda 760 Zozo
• 2015 Pagani Zonda 760 AG Roadster
• 2015 Pagani Zonda Kiryu
• 2016 Pagani Zonda OLIVER Evolution

588.5 kW version

• 2017 Pagani Zonda HP Barchetta

Applications:^[10]

Year	Model	Displacement	Power output
2005	Pagani Zonda F	72911NaN1	6020NaN0
2005	Pagani Zonda F Clubsport / Zonda Roadster F		6500NaN0
2009	Pagani Zonda Cinque / Zonda Cinque Roadster		6780NaN0
2010	Pagani Zonda Tricolore		6700NaN0
2012	Pagani Zonda 760		7600NaN0^[11]
2017			8000NaN0^[12]

Notes and References

1. Web site: CLK-GTR - C 297. mercedes-benz-publicarchive.com. 16 March 2024.
2. News: 1998 Mercedes CLK-GTR @ Top Speed. Top Speed. 2018-09-02. en-US.
3. News: This Pagani Zonda Was Commissioned For A Nine-Year-Old. CarBuzz. 2018-09-02. en-us.
4. Web site: Radu . Vlad . The Story of Mercedes’ First Production V12 Engine and How It Became Legendary . www.autoevolution.com . 2 November 2023.
5. Web site: Zonda F Pagani . 2023-11-12 . en-US.
6. Web site: Zonda Roadster F Pagani . 2023-11-12 . en-US.
7. Web site: Zonda Cinque Pagani . 2023-11-12 . en-US.
8. Web site: Zonda Cinque Roadster Pagani . 2023-11-12 . en-US.
9. Web site: Zonda Tricolore Pagani . 2023-11-12 . en-US.
10. Web site: Radu . Vlad . The Story of Mercedes’ First Production V12 Engine and How It Became Legendary . www.autoevolution.com . 2 November 2023.
11. Web site: Kelshikar . Tushar . 2022-01-02 . Pagani Zonda 760 Roadster to be revealed soon; last of the 760 Series . 2022-01-02 . The Supercar Blog . en.
12. Web site: StackPath . 2022-06-29 . www.pagani.com.