16 lbs lighter than in the 350sd???? lol

stock piston 'dimentions' wil give 3.4, if you want 3.6 it needs a rebore, even if you stay at 3.4 i would expect uprated pistons (forgies) wouldnt be a bad idea?

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ce 320 amg
widebody
tiwn turbo
Mutty 'der nail'
soon to be a six speed nail


"some mods improve your car and make it into something it never was, other mods, however, although essentially the same, are not, and make that car a ricer"

if your car isnt shiny, you dont know what you are talking about, remember; paint shine = knowledge. In order to be taken seriously, you should spend all your money on paint, (and get a dyno reading).
Dont forget to polish it often

What kind of power increase could you expect on an m104 (cis-e) increased to 3.4 with stock pistons and custom rods?

Also, what would be the downfall of not using forged pistons?

Costs on getting custom rods made?

You'll need to do a lot of work to the block. At 88.5mm the throws hit the side of the cylinders. You'll need to eye-brow them or clearance it somehow. You also need to get 16lbs out of the SDL crank while you're bored.


A set of rods is probably going to be in the 1200dollar ballpark. Just remember you've got a 217.625mm deck height to play with, and a 92.4mm stroke.

Cast pistons are alright if you're not going to turn it that tight. They're more brittle and are less tolerant of detonation than forgies.

Also remember, AMG motors had different intake cams (some say shrick, but I'm not sure I believe that yet), the 3.4 had a ported inlet and exhaust while the 3.6 just had a ported exhaust.

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1993 190E 2.6 Sportline

Thanks for all of the info Bob!

It seems like it could be a fun project, just have to find a good machine shop down here in florida to help me with the block issue. Definitely going to port my exhaust and intake though even before I do the bottom end conversion.