M157 engine swap in E550? Possible?
Thread Starter
Newbie
Joined: Mar 2022
Posts: 12
Likes: 2
From: Germany
2012 E550 C207, 2011 SL63, 2013 S550
M157 engine swap in E550? Possible?
Has anyone ever engine swapped a M278 with the M157?
Your first question might be.. WHY?! Your second statement is likely.. JUST BUY THE AMG!
Ok, thanks for that. But no (pillarless) "AMG" exists aside from going up to the S65. So IN THEORY someone could pull out the M278 and swap in the M157 then tune the car to push 800hp+ in a C207..lmao
If there was a pillarless AMG E class coupe (around 2012) then I would have simply bought that. Not a fan of the 2014+ styling.
My very limited understanding is that there are many shared components between these two engines. Granted there are likely more differences than similarities.
Just thought this would be a good topic of discussion for W212
Your first question might be.. WHY?! Your second statement is likely.. JUST BUY THE AMG!
Ok, thanks for that. But no (pillarless) "AMG" exists aside from going up to the S65. So IN THEORY someone could pull out the M278 and swap in the M157 then tune the car to push 800hp+ in a C207..lmao
If there was a pillarless AMG E class coupe (around 2012) then I would have simply bought that. Not a fan of the 2014+ styling.
My very limited understanding is that there are many shared components between these two engines. Granted there are likely more differences than similarities.
Just thought this would be a good topic of discussion for W212
Senior Member
Joined: Jun 2007
Posts: 442
Likes: 48
From: Los Angeles
2015 E63 - Current, 2012 E550 - Current, 2019 Audi Q7 3.0T - current
Has anyone ever engine swapped a M278 with the M157?
Your first question might be.. WHY?! Your second statement is likely.. JUST BUY THE AMG!
Ok, thanks for that. But no (pillarless) "AMG" exists aside from going up to the S65. So IN THEORY someone could pull out the M278 and swap in the M157 then tune the car to push 800hp+ in a C207..lmao
If there was a pillarless AMG E class coupe (around 2012) then I would have simply bought that. Not a fan of the 2014+ styling.
My very limited understanding is that there are many shared components between these two engines. Granted there are likely more differences than similarities.
Just thought this would be a good topic of discussion for W212
Your first question might be.. WHY?! Your second statement is likely.. JUST BUY THE AMG!
Ok, thanks for that. But no (pillarless) "AMG" exists aside from going up to the S65. So IN THEORY someone could pull out the M278 and swap in the M157 then tune the car to push 800hp+ in a C207..lmao
If there was a pillarless AMG E class coupe (around 2012) then I would have simply bought that. Not a fan of the 2014+ styling.
My very limited understanding is that there are many shared components between these two engines. Granted there are likely more differences than similarities.
Just thought this would be a good topic of discussion for W212
1. Not worth swapping
2. You can make you M278 just as fast as a 63 and faster depending on your level of knowledge.
3. The turbos from the 157 bolt right up and most performance parts are swappable.
4. There are multiple cars on this forum that have gone the turbo route. Look for users named: PekkaH, Cocobeex For the bolt on route but fast there is: Nota_AMG, MJec515 and not to mention me.
5. Best to go the tuning route mentioned above.
Super Member
Joined: Feb 2019
Posts: 681
Likes: 405
From: FL
2012 E550 sedan 2019 E63 Wagon
If you have the money sure, but I would build a billet motor. If you blew your M278 I would upgrade the internals.
I haven't seen a torn block from either of these 2. Seen piston failures on cyl 1 and 5, but a rebuild with iron sleeves, and stronger pistons, rods, and crank takes care of it.
I haven't seen a torn block from either of these 2. Seen piston failures on cyl 1 and 5, but a rebuild with iron sleeves, and stronger pistons, rods, and crank takes care of it.
