M113K Heads on M113 NA Motor
11-13-2021, 11:32 AM
#1
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2002 CLK55 AMG: 2004 S55 AMG
M113K Heads on M113 NA Motor
Has anyone tried this, or know if it will work? I tried to do some research but i haven't found anything on the forums.
It looks like the exhaust ports on the 113k heads are a little over 3mm larger. I understand its a ton of work for such a little gain, but i'm thinking if you do cams at the same time it may be worth it.
It looks like the exhaust ports on the 113k heads are a little over 3mm larger. I understand its a ton of work for such a little gain, but i'm thinking if you do cams at the same time it may be worth it.
11-16-2021, 12:55 AM
#3
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I wouldn't - you'll LOSE power unless you add the supercharger or some other form of forced induction. I'm not sure the cams are any different.
The M113k engine from what I recall also has beefier internals (forged pistons/rods, etc), so there's that too...
The M113k engine from what I recall also has beefier internals (forged pistons/rods, etc), so there's that too...
Last edited by Spooky55; 11-16-2021 at 12:58 AM.
12-02-2021, 07:47 AM
#4
just go all the way to m113k engine, with msc headers you will be making ton of power. i have kleemann cams that i'm selling if you want even more 
i kept my car NA and did everything that can be possibly done without going too crazy and i'm just around 375hp to the wheels(p&p heads, enlarged TB and intake manifold inlets, 2.5 dual exhaust with msc headers, more aggressive cams from w203/w209 amg, and some other tiny changes). with m113k engine in the w208 you will be putting down closer to 400hp with a fraction of cost and better all around engine. just my advice, that seems to be the best mod to do for our cars.
i kept my car NA and did everything that can be possibly done without going too crazy and i'm just around 375hp to the wheels(p&p heads, enlarged TB and intake manifold inlets, 2.5 dual exhaust with msc headers, more aggressive cams from w203/w209 amg, and some other tiny changes). with m113k engine in the w208 you will be putting down closer to 400hp with a fraction of cost and better all around engine. just my advice, that seems to be the best mod to do for our cars.
Last edited by Quant; 12-02-2021 at 07:50 AM.
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12-08-2021, 12:58 PM
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12-10-2021, 10:55 PM
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2002 CLK 55 AMG cabriolet Eurocharged
It is true the NA heads are more desirable for performance.The M113k cams are specifically machined to each head as well. It is not recommended to swap cams on the K heads without some careful measurements.
The NA heads flow better on the intake side according to some of the W211 folks who get wild with mods.
The K engine has lighter pistons heavier rods and custom flywheel and balancer.. The K heads will bolt on and have no EGR port on the passenger head.
Hope this helps a bit any feedback welcome.
Good luck with your build.
Best, Gator
The NA heads flow better on the intake side according to some of the W211 folks who get wild with mods.
The K engine has lighter pistons heavier rods and custom flywheel and balancer.. The K heads will bolt on and have no EGR port on the passenger head.
Hope this helps a bit any feedback welcome.
Good luck with your build.
Best, Gator
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09-20-2023, 05:31 AM
#8
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2000 ml55 heads or cams on 2003 ml500 motor
just go all the way to m113k engine, with msc headers you will be making ton of power. i have kleemann cams that i'm selling if you want even more
i kept my car NA and did everything that can be possibly done without going too crazy and i'm just around 375hp to the wheels(p&p heads, enlarged TB and intake manifold inlets, 2.5 dual exhaust with msc headers, more aggressive cams from w203/w209 amg, and some other tiny changes). with m113k engine in the w208 you will be putting down closer to 400hp with a fraction of cost and better all around engine. just my advice, that seems to be the best mod to do for our cars.
i kept my car NA and did everything that can be possibly done without going too crazy and i'm just around 375hp to the wheels(p&p heads, enlarged TB and intake manifold inlets, 2.5 dual exhaust with msc headers, more aggressive cams from w203/w209 amg, and some other tiny changes). with m113k engine in the w208 you will be putting down closer to 400hp with a fraction of cost and better all around engine. just my advice, that seems to be the best mod to do for our cars.
