w115 engine swap - Mercedes-Benz Forum

 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 07-02-2007, 07:10 PM Thread Starter
BenzWorld Junior Member
 
Date registered: May 2007
Posts: 6
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
w115 engine swap

I DID NOT GET TO MUCH RESPONSE FROM MY LAST POST BUT I BET THIS ONE WILL GET MORE FEEDBACK. I HAVE AN IMMACULATE W115 220 WITH A BAD ENGINE. I WAS THINKING ABOUT A 220D OR 240D TRANSPLANT , BUT IT WOULD REQUIRE A DONOR CAR . I HAVE A 85 300D TD BUT LOTS OF MODS ARE IN ORDER .HAS ANYONE ON HERE SEEN OR DONE THIS TRANSPLANT? I WAS ALSO ENTERTAINING THE IDEA OF INSTALLING A MID 90'S LT1 V8 COMPLETE ENGINE TRANS AND WIRE HARNESS. ANY OPIONIONS WILL BE APPRECIATED THANKS DOUG

Last edited by arthrdgls; 07-02-2007 at 07:13 PM.
arthrdgls is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 07-03-2007, 03:24 AM
BenzWorld Elite
 
diametricalbenz's Avatar
 
Date registered: Oct 2005
Vehicle: '77 6.9, 74 240D, 96 Ram 5.9L Cummins, 02 Civic EX, 10 Mazda 5 Sport
Location: Atlanta, GA
Posts: 2,652
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Hi Doug, a 240D engine from a 1974 to 1976 240D would slot right in. It would also gain 7hp. A 300D engine could be put in from a 1975 to 1976 300D. The 85 300D engine will not fit without relocating the oil filter because it interferes with the brake booster. The turbo as I recall also hits the right fender due to the narrowness of the W114/5 engine bay.

The LT1 conversion although fast would lose its originality and the rest of the car is not designed for that much power nor would the handling match the engine's output. It would understeer like crazy and you'd be sideways with that open differential.

If you need a place to put that LT1, drop it in a better chassis suited for the power output, it would be a better match.

1977 - W116 - 6.9
1974 - W115 - 240D /8 - 4(M) OM617.910 + Turbo + 300D FW - Completed 7/8/10
diametricalbenz is offline  
post #3 of 10 (permalink) Old 07-03-2007, 03:23 PM Thread Starter
BenzWorld Junior Member
 
Date registered: May 2007
Posts: 6
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
THANKS FOR THE POST. IT DOES HAVE A NARROW ENGINE BAY. THE OIL FILTER CAN BE REMOTELY MOUNTED, BUT IM NOT SURE I WANT TO MODIFY THE INNER FENDER FOR THE TURBO THANKS AGAIN. DOUG
arthrdgls is offline  
post #4 of 10 (permalink) Old 12-23-2011, 08:34 AM
BenzWorld Junior Member
 
Date registered: Dec 2011
Vehicle: 1972 220D
Location: Trumbull, Ct
Posts: 7
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
I have a 72 220D, and am trying to see what my options are my self. I want to swap either a 240d or 300d. I just don't know what years will fit in the bay, and what will work with the current 220D's 4spd manual transmission. Any Incite?
misterbegnoche is offline  
post #5 of 10 (permalink) Old 12-24-2011, 05:54 AM
BenzWorld Elite
 
Grubeguy's Avatar
 
Date registered: Jan 2006
Vehicle: 73 280SE 4.5, 71 300SEL, 03 BMW Z4, 72 Fiat 850, 80 Triumph TR7, 85 Porsche 911
Location: DC Area
Posts: 2,109
Mentioned: 1 Post(s)
Quoted: 95 Post(s)
Send a message via MSN to Grubeguy Send a message via Yahoo to Grubeguy
Quote:
Originally Posted by diametricalbenz View Post
The LT1 conversion although fast would lose its originality and the rest of the car is not designed for that much power nor would the handling match the engine's output. It would understeer like crazy and you'd be sideways with that open differential.
Anything but the original engine would make the car lose its originality. I say go for the LT1 conversion, but understand that the car will need some mods to take it. When I was in my teens, my dad and I put a Ford 289 into a 108 chassis car. It wasn't to awfully difficult, and the car took the extra power without any issue. It's still running with the original Benz rear end too.

Clearly a 108 and 115 are different bodies, but the old beasts were built like rocks. I think your car would surprise you.
Grubeguy is offline  
post #6 of 10 (permalink) Old 02-27-2013, 02:26 PM
BenzWorld Junior Member
 
Date registered: Dec 2012
Posts: 16
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
hey, to join in i have a 1972 220d and am thinking about engine options i was thinking an old chevy 350. this may be a stupid question but can i use the original transmission or do you have to swap out tranny, driveshafts etc.
coreyt is offline  
post #7 of 10 (permalink) Old 03-07-2013, 10:07 AM
BenzWorld Member
 
Date registered: Feb 2011
Vehicle: 1973 220D
Location: California
Posts: 295
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by coreyt View Post
hey, to join in i have a 1972 220d and am thinking about engine options i was thinking an old chevy 350. this may be a stupid question but can i use the original transmission or do you have to swap out tranny, driveshafts etc.
Your engine had 69hp new and everything in the drive train was designed for that (perhaps over designed - but not that much). How many hp does the 350 have? 250? 300? So you probably could get it to work until one day when you punch it and leave bits or your transmission in the street. The car has a heavy body and the drive train is what's between the new bigger engine and the inertia of the car standing still.

Still if you did used the original and then blow it up later you're only one tow home worse off since you'd be replacing it all anyway.

Good Luck.
frankflynn is offline  
post #8 of 10 (permalink) Old 03-07-2013, 12:41 PM
BenzWorld Elite
 
Grubeguy's Avatar
 
Date registered: Jan 2006
Vehicle: 73 280SE 4.5, 71 300SEL, 03 BMW Z4, 72 Fiat 850, 80 Triumph TR7, 85 Porsche 911
Location: DC Area
Posts: 2,109
Mentioned: 1 Post(s)
Quoted: 95 Post(s)
Send a message via MSN to Grubeguy Send a message via Yahoo to Grubeguy
Quote:
Originally Posted by coreyt View Post
hey, to join in i have a 1972 220d and am thinking about engine options i was thinking an old chevy 350. this may be a stupid question but can i use the original transmission or do you have to swap out tranny, driveshafts etc.

The Chevy 350 would be an awesome transplant, but the oil pan and the front cross member won't play well. You'll need to either go with a custom oil pan (they're a dime a dozen from speed shops or hot rod magazines), or go with the Ford engine.

If you keep the original tranny, you'll need to find mounting brackets to fit it to the engine, and the input shaft may need to be worked out as well. And as stated above, you're likely to leave the tranny in pieces after you romp the gas once or twice.

The rear end that I spoke of was stock on a 108 that came with a 6 cylinder. The 289 Dad put into his car was stock as well (no blower or other performance upgrades, etc), and the rear end takes that power and torque without issue (at least without issue that can be seen. It might fly apart next week )
Grubeguy is offline  
post #9 of 10 (permalink) Old 03-07-2013, 12:41 PM
BenzWorld Junior Member
 
Arthur Dent's Avatar
 
Date registered: Dec 2012
Posts: 14
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
I recall seeing a 220D on eBay a number of years ago with a Ford 302cid V8 and automatic swapped in. From the photos it looked nicely placed in there. They did have to cut the brace bars behind the motor though. The diff was stock and said to have worked for a number of years after the conversion with no issues. Ah I found the link! A 1969 Mercedes 220D W115 V8, sold by Californiaclassix.com!



I think the biggest issue to be aware of in a V-style engine swap would be steering linkage/box mount in relation to the oil pan - might have some conflicts there. Exhaust routing is always another concern with engine swaps in general and the W115 engine bay is a little narrow. Note on the one above the driver's exhaust manifold is reversed and goes around the front of the motor!
Arthur Dent is offline  
post #10 of 10 (permalink) Old 03-07-2013, 02:53 PM
BenzWorld Member
 
Date registered: Oct 2012
Vehicle: '73 280C
Location: OC, CA/Bozeman, MT
Posts: 137
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
mercules. com should be able to help you.
ssk831 is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > General Mercedes-Benz Forums > Vintage Mercedes-Benz

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











  • Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
     
    Thread Tools
    Show Printable Version Show Printable Version
    Email this Page Email this Page
    Display Modes
    Linear Mode Linear Mode



    Similar Threads
    Topic Author Forum Replies Last Post
    Seeking Engine for 1976 300d W115 Eurobear Vintage Mercedes-Benz 1 12-31-2011 12:18 AM
    W115 Engine Swap arthrdgls Vintage Mercedes-Benz 3 06-12-2007 08:26 PM
    1991 320g engine swap sprinter engine keychi G-Class 10 01-29-2006 07:14 AM
    w115 rims, engine senior Vintage Mercedes-Benz 1 10-13-2005 03:29 PM
    engine swap info?? euro engine in US car running rich HeirKranz W126 S,SE,SEC,SEL,SD,SDL Class 14 04-28-2005 07:18 AM

    Posting Rules  
    You may post new threads
    You may post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are On
    Pingbacks are On
    Refbacks are On

     

    Title goes here

    close
    video goes here
    description goes here. Read Full Story
    For the best viewing experience please update your browser to Google Chrome