Date registered: Apr 2006
Vehicle: W111 Coupe
Location: Washington DC
Mentioned: 1 Post(s)
Quoted: 11 Post(s)
The M119 is wider due to the DOHCs and doesn't clear the W110/111 engine bay. And you won't be able to fit the trans you have as it has a similar (but not exactly the same) bolt pattern in the back as the alloy M117s.
The US 4.5 has a 8:1 compression ratio. Rather than work on higher CR, 32 valves etc. I would fit a compressor or a turbo. More bang for the buck and easily manageable with MS.
Moving the engine back will require a lot of work. First you have a structural valance at the bottom of the firewall and if you cut it off you will need to replace it somehow. Then the engine oil pan will hit the front axle carrier. The oil pump is there so no much possibilities, unless you move the engine back to the point it is completely behind the axle carrier.
If not done already moving the battery in the trunck may put back the weight distribution where it was with the L6.
the 6.9 engine and its dry sump may be a better option if you want to move the engine back. But mating it with a manual trans will be another story.
The rear end can be improved with polybushings for the trail arms and by stiffening the donuts on the lateral strut by compressing them more. You can also fit a rear sway bar that will help counterbalance the understeer due to the heavier engine.
If you go with a W124 or W210 rear end, Mercmad6.3 on this board can give you more info on what is involved. You can also cut out the valance from the donor car or get a new one from MB. Pagodino on this board will know more about this.
alabassi is in Dallas and he can help you finding parts. I heard Texas was full of older MBs which got there during the oil golden age.
Last edited by GGR; 06-14-2011 at 07:23 PM.