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3.5L Ecoboost Retro-Fit

Discussion in 'EcoBoost Engines' started by walt460, Jul 2, 2013.

  1. walt460

    walt460 SN95 Judge Established Member

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    OK, regarding the FWD vs the RWD blocks used by Ford in 3.5L Ecoboost applications, I reviewed my notes. I was told by an engineer on the FWD V6 design team on March 4, 2011, that the FWD and RWD 3.5L EB blocks are different. My notes show that these engines have a different front cover, different motor mount bosses and different bellhousing.

    splatranger95, I will email you some contact info within Ford.

    I do not have first hand experience to prove the differences as I have only ever worked on F150 RWD 3.5L EB engines with 6R80 transmissions. I do know that the 3.5L F150 EB has the same bellhousing bolt pattern as the 3.7L Mustang, and the same motor mount bosses, same front cover pattern, and even the same oil pan part number for both.

    If anyone has done a comparison between the FWD and RWD 3.5L Ecoboost blocks, please share what you have learned as that information will help many many of us in the future.

    Thanks,

    Walt
     
  2. Kestor

    Kestor New Member

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    Sd
    Great information!
    I am currently working on replacing an 80's TVR 2.8/2.9L Ford Cologne and have been digging thru various forums for info and found this one. Finding a donor vehicle seems the best way to go. Pretty sure a 3.5L will fit.
    Would anyone have any idea how the engine mounts would compare for these? The car has a tubular chassis so I'd hope adjustments would be manageable
     
  3. KennyXR4i

    KennyXR4i New Member

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    Hi guy's, following this with great interest. Been sitting here since mid november due to a busted knee & ankle overdosing on petrolhead TV - Fast n Loud, Overhaulin etc etc. So, consequently the mind has turned to my (stalled resto) Sierra XR4i - you got it as the Merkur XR4ti. Here in Europe the XR4i came with a 2.8l(171cu in) Cologne V6, a fuel injected (Bosch K jet) version of the engine Ford used in the 1974 Mustang 2. So naturally as a result (partly) of the afore-mentioned TV shows, the mind turns to increasing the performance from the 150ish BHP the car originally came with. While a Coyote would be lovely, a V8 would probably require too much in the way of engine bay mod's (although Ford SA SVO did it with a 302 Windsor, I don't have their resources lol) so naturally my thoughts turn to the 3.5 Ecoboost mated to a (?)T5 trans.
    TBH I'm a long way from being in a position to do this (if at all) but I like to think these things through before committing time/money. So any (constructive) thoughts, opinions would be most welcome.
     
  4. Ross Converse

    Ross Converse New Member Established Member

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    Hi Walt, this is Ross Converse in Maine . I just signed up with this forum after reading all the great advice about doing swaps with the twin cam V6. I'm finishing up the process of putting a
    09 MKZ 3.5 into a 1974 Volvo 164 rear wheel drive. I've adapted this engine up to the Ford AOD transmission successfully and would be glad to share details and pictures. It's been a very time-consuming project but I'm retired now and have a very patient customer from New York. The reason why I found your forum is because one of the last things I have to do is get the engine to start. I now have new hope I can do this with the stock PCM and modified harness and not have to go to megasquirt. For the last 30 years I've been putting 5.0 HO Mustang packages into rear wheel drive Volvos for a business . My company used to be Converse engineering.com
    Thanks again, Ross
     
  5. Ross Converse

    Ross Converse New Member Established Member

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    Hi Kenny, regarding using a T5 I was able to adapt the Ford aod auto trans onto my 3.5 transverse engine without an adapter plate. So we know the Ford small-block bolt pattern can be adapted to the back of the engine. In my case I only had two modify the flexplate and your case obviously you have to figure out the flywheel and clutch.
    Hope this helps, Ross
     
  6. KennyXR4i

    KennyXR4i New Member

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    Hi Ross, this is exactly the sort of info I was hoping to glean from this thread :) Although, in reality, I'm still a long way from considering an engine/trans swap (still a lot of body work to do :() any and all information, tips, hints are great. The biggest (although not insurmountable) obstacle is the lack of easy availability of all the necessary parts over here in the UK :(:( but, comes the time I'm in a position to do it, I'll hopefully have a comprehensive list of everything I need :):)
    Thanks again, Kenny.
     
  7. Ecoboost Capri

    Ecoboost Capri New Member

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    I really hope you are still following this forum. I am dropping a 3.5L Ecoboost into a 76 Capri II. I have found a few of your build pictures on other forums. I really need some detail on your oil pan modifications.

    For everyone interested, here is my progress so far:

    https://www.facebook.com/EcoboostCapri/
     
    KennyXR4i likes this.
  8. Ross Converse

    Ross Converse New Member Established Member

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    Hi,
    I was lucky, all I had to do was retrofit my MKZ Engine with the Mustang / F-100 oil pan to clear the Volvo cross member.
    Ross
     
  9. Ross Converse

    Ross Converse New Member Established Member

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    20170221_122812.jpg 09 MKZ in a 74 Volvo 164
     
  10. s23218

    s23218 New Member

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    Hobe Sound, Fl.
    Hi Ross; I bought one (2 actually) of your V8 / Volvo kits and built a 760 GLE 5.0, AOD and had a ball with it. I was then in China for two years (Sikorsky Air Craft) and my son drove it Middletown to school. Loved the car. Working with Walt460 on a 3.5 EB for my 2010 Sport Trac. Small world
    [email protected]
     
  11. Ross Converse

    Ross Converse New Member Established Member

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    Hi Don,
    Did I get your first name correct? I recognize your last name. Glad you had good memories of your Volvos! I'm retired now from the 5-liter Volvo world but had a very satisfying career. Have fun with your new 3.5 EB swap.
    Ross
     
  12. 2nazty

    2nazty New Member Established Member

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    London, Ontario CANADA
    HI Ross

    Can you detail any changes you had to make to install the transverse Mkz engine in a RWD application? I've got a 3.7L Cyclone engine that came out of a 2010 mazda 6 originally, my plan is to beef it up with crank and rods from a 3.5L ecoboost motor, convert it to direct injection with ecoboost heads and pump along with the turbochargers and install it in RWD configuration into a 2003 Lincoln LS that has the 3.0L v6 in it currently. If possible I'd like to replace the 5 speed auto transmission (5R55E) with a 6R80 if it will physically bolt on? I would appreciate some info on what to do for motor mounts to put this engine in longitudinally into the Lincoln ls.
     
  13. 2nazty

    2nazty New Member Established Member

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    HI Walt

    Can you educate me on the compatibility of engine components between the 3.7L Cyclone and 3.5L ecoboost? Specifically crank, rods, cylinder heads? Also I'd like to learn about direct injection, I read there is a high pressure fuel pump mounted on the engine to feed the direct injection system on ecoboost v6 engines, is this adaptable to a regular 3.7L Cyclone engine if I were to bolt on ecoboost heads to it? Can you also educate me on transmission choices, unfortunately the 3.7L I have is a transverse one out of a mazda 6 and my intended application is a 2003 Lincoln LS that currently has the 3.0L v6. I am well versed in automotive wiring so I am certain I can sort that out once I have the wiring diagrams for the Lincoln ls and whichever ECU and engine and transmission harness I go with. One final question would I need to get custom pistons made for the 3.7L to use direct injection? I believe I've read that DI engines use a specific dome style of pistons, is this information correct?
     
  14. walt460

    walt460 SN95 Judge Established Member

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    2Nasty,
    The high pressure fuel pump is driven by the camshaft so if you put 3.5L EB heads on a 3.7L you will have the DI pump & drive system.

    For transmissions, you can get the QuickTime bellhousing for a T-5 or T-6, belhousing fits both FWD and RWD blocks. for a RWD block You can use the 6R80 auto or the new 10-speed auto, but you need the factory PCM and wiring to go with whichever you select. You can always use the Mustang 6-speed from a 3.7L Mustang. Not sure about any other transmissions.

    The FWD PCM will not run the RWD transmissions, reprogramming might solve, not sure.

    Yes the DI engines have different pistons, turbo or NA. Aftermarket DI pistons are available for both Turbo and NA engines.

    Not sure why you want to go to all the trouble of making a 3.7L into a DI or Eco engine, way way cheaper and easier to just buy a 3.5L Eco engine.

    Walt
     
  15. 2nazty

    2nazty New Member Established Member

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    HI Walt

    Thanks for your reply, I may just end up ditching the 3.7 FWD engine if I can not mate it to a RWD automatic, how diffrent is the bolt pattern between the FWD and RWD block? And does the FWD bolt pattern match any previous RWD auto transmissions? I have the ability to machine the block to accept it if there is sufficient material thickness or make an adaptor. It would be nice if the 6R80 and it's 10 speed derivative had a removable bellhousing. This is purely an academic exercise for me, I like doing engine swaps the more unusual the better. I was also considering investigating other DEW98 platform vehicles to see if I could swap front suspensions, Mount the engine with appropriate transaxle transversly and run a Taurus sho ECU with the AWD system in this car....lol the things I come up with when I'm bored

    Sorry for all the questions just one more about DI, so on the system it would use a regular electric fuel pump in the tank and normal pressure rated lines up to the motor, then the engine mounted pump would "intensify" the fuel charge, is this correct? What about running regular multiport injection and DI as Ford will be doing on several vehicles in MY2018, how would this work? Dual electric in tank pumps, one to feed the MFI and the other to feed DI?
     
  16. Ross Converse

    Ross Converse New Member Established Member

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  17. Ross Converse

    Ross Converse New Member Established Member

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  18. Boosted Falcon

    Boosted Falcon New Member

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    Hi all found this forum while researching my 64 Falcon Ecoboost swap. I see a lot of great help and information here.
    I have a 2016 3.5 EB with 11,000 miles mated to a T56 transmission using Ford Performance harness and ECU. I have ordered a TCI IFS and power steering rack. I will be looking for solutions for the power steering pump.
     
  19. MadScientist

    MadScientist New Member

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    Wingett Run Ohio
    Hi everyone. I am trying to gather information for a swap that I have never heard of before. I was thinking about trying to put a 3.5 ecoboost and auto trans in a 1974 Scout II. The fabrication does not scare me or even wiring, my big concerns are getting the automatic trans and transfer case to work. As far as the transfer case I can go with an aftermarket unit like an atlas, but the auto trans I am not to sure about. This will be my first automatic trans vehicle so I am trying to adjust. I have thought about using a manual trans but offroad autos are so much easier. An help would be greatly appreciated.
     
  20. stang910

    stang910 Active Member Established Member

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    I'm sure you can make a drivetrain from a f150 work.
     

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