i want to turn my 4.2liter into 6.0

[motor gear head]

hi i was wondering due to the m119 4.2 having the same block as 5.0 and amg taking into 6.0 what mods have to be done and maybe rear mount turbos are a good idea. so i would love to know if any one has done it thank u

 

[gsxr]

You can't turn a 4.2L block into a 6.0L. You must start with a 5.0L, closed-deck block and bore it to 100mm. Needs a stroker crank, modified rods, minor clearancing at the block, and custom pistons - at a minimum. Plan on ~$20k USD cost to build, and that may not include custom camshafts. Search the forum for more info. Almost nobody does this because (1) it's too much work, and (b) it's too much $$$ / €€€ / £££.

A couple of rear-mount turbos have been built with the 4.2L or 5.0L, but you'll need to convert to full standalone engine management (Megasquirt or similar).

If it were easy and cheap, everyone would have 6.0L's or turbos. It's neither, which is why you will find very few, if any.

 

[motor gear head]

i have time and do have a budget so yes what i can do is bore to 5liters than turbo charge it do know that all parts ill need and numbers.20k is not too bad i can deal with it

 

[motor gear head]

anyway i have to rebuild it so yes ill do that and custom piston part how am i going to do that its better to enigne swap it with a s500 w140 i mean there alot of it problem is that my car is a true amg it is pushing 475hp but i want moore powwwer than would be better just to tubro charge it

 

[motor gear head]

could u tell me the name of the kit

 

[Kridre]

I don't think there is a kit for this, you can try contacting RenTech, but I think you need to source someone to make everything custom.

 

[gsxr]

i have time and do have a budget so yes what i can do is bore to 5liters than turbo charge it do know that all parts ill need and numbers.20k is not too bad i can deal with it

Boring a 4.2 is a waste of time and money. Buy a 5.0L engine. They are <$1k in USA.

anyway i have to rebuild it so yes ill do that and custom piston part how am i going to do that its better to enigne swap it with a s500 w140 i mean there alot of it

The 140-chassis M119 engines have a different oil pan, oil pump pickup, and exhaust manifolds. You can use an S500 engine block, but those parts will need to be swapped from the W124 4.2L engine.

problem is that my car is a true amg it is pushing 475hp but i want moore powwwer than would be better just to tubro charge it

If you have a normally-aspirated M119, it is not making 475hp. If it's 4.2L, it isn't even making 300hp.

could u tell me the name of the kit

I dont think there is a kit for this, you can try contacting RenTech, but I think you need to source someone to make everything custom.

@Kridre is correct. There are no kits. Everything is custom. If you have a 5-figure budget, pay RENNtech to build everything for you. They recently built a turbocharged 6.0L car (R129). The 415rwhp / 500hp at the crank is realistic. Contact them and ask what it would cost to duplicate that engine / turbo setup:

Rt Classics | SL 500 Twin Turbo

Custom built R129 SL 500 by RENNtech. One of a kind Twin Turbo charged M119 6.0 liter Mercedes-Benz.

www.renntechclassics.com

 

[motor gear head]

if where on the topic of engine swap what about a m113 5.0 it will need work but maybe ill find one or ill go for m156 cuz my engine is aging i dont think i really want it anymore so what do u recommend?

 

[gerryvz]

if where on the topic of engine swap what about a m113 5.0 it will need work but maybe ill find one or ill go for m156 cuz my engine is aging i dont think i really want it anymore so what do u recommend?

You are getting WAY outside the scope of this forum with M113 or newer engines come up. Just sayin.

 

[gsxr]

if where on the topic of engine swap what about a m113 5.0 it will need work but maybe ill find one or ill go for m156 cuz my engine is aging i dont think i really want it anymore so what do u recommend?

M113 has been done, there are photos of this elsewhere in the world... not worth it unless it's an AMG Kompressor engine. Haven't seen an M156 in a W124 yet, but I know a couple people were working on this. Either swap will be an order of magnitude more complex both mechanically (i.e., clearance for exhaust/steering/oil pan, fabricating transmission stuff) and electrically (figuring out both ECU and TCU).

You are getting WAY outside the scope of this forum with M113 or newer engines come up. Just sayin.

Yep. Gerry is correct. For M113 or M156 you should check out other forums, like MBWorld or BenzWorld.

 

[motor gear head]

damn ok ill try that but for now i need this car to be working right in its conduction rn (its bad) but thank guys

 

[Taxi Driver]

You are getting WAY outside the scope of this forum with M113 or newer engines come up. Just sayin.

So right You are Gerry! The W124 should have NO other motor than M119 in it PERIOD.