Close

Results 1 to 15 of 15
  1. #1
    Join Date
    Mar 2012
    Posts
    2
    Rep Points
    1.1
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No

    M52 block on m54?

    I have a 2001 E46 330i M54 and my block has given up and I managed to hustle a M52 engine from a E39 525i can this M52 block work on my 330i? assistance will be greatly appreciated

  2. #2
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    119,483
    Rep Points
    32,156.3
    Mentioned
    2110 Post(s)
    Rep Power
    322


    Yes Reputation No
    Interesting question and a really good one. I know many of the guys say these motors are pretty damn similar but don't know who has run M54 heads with an M52 blocks or if it will work without issue.

    This right here is something @bluejeansonfire would know since he is always telling me about how similar these engines are.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  3. #3
    Join Date
    May 2010
    Location
    canada
    Posts
    522
    Rep Points
    122.9
    Mentioned
    2 Post(s)
    Rep Power
    2


    Yes Reputation No
    M54B30 and S52 have the same crank, if it helps.

  4. #4
    Join Date
    Nov 2010
    Location
    le Paris
    Posts
    6,648
    Rep Points
    -164.0
    Mentioned
    48 Post(s)
    Rep Power
    0


    Yes Reputation No
    I learned that you can put the older head on the newer designed engine in BMW engines, but can't do the opposite. For example you can put M50's head on M52's block to have a M50B30, but i'm not sure about the M54.

  5. #5
    Join Date
    Dec 2011
    Posts
    183
    Rep Points
    123.0
    Mentioned
    5 Post(s)
    Rep Power
    2


    1 out of 1 members liked this post. Yes Reputation No
    the e39 came with a m52b28 in 97-98 then the m52tub28 in 99-00. the m54b25 came out in 01 iirc. so if you have a a engine out of a 525i it is a m54 and the blocks are the same. also if you have a 99-00 528i block thats a m52tub28 and again the blocks are the same. however the 97-98 m52b28 engines are different. you can get a older engine to fit but it requires some machine work. if your interested in this search for my thread on s52tu.

  6. #6
    Join Date
    Dec 2011
    Posts
    183
    Rep Points
    123.0
    Mentioned
    5 Post(s)
    Rep Power
    2


    Yes Reputation No
    PS what do you mean by the block gave out? if it was the threads for the head bolts then there is also a fix for that.

  7. #7
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    119,483
    Rep Points
    32,156.3
    Mentioned
    2110 Post(s)
    Rep Power
    322


    Yes Reputation No
    Click here to enlarge Originally Posted by hobbit382 Click here to enlarge
    the e39 came with a m52b28 in 97-98 then the m52tub28 in 99-00. the m54b25 came out in 01 iirc. so if you have a a engine out of a 525i it is a m54 and the blocks are the same. also if you have a 99-00 528i block thats a m52tub28 and again the blocks are the same. however the 97-98 m52b28 engines are different. you can get a older engine to fit but it requires some machine work. if your interested in this search for my thread on s52tu.
    Well done.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  8. #8
    Join Date
    Dec 2011
    Posts
    183
    Rep Points
    123.0
    Mentioned
    5 Post(s)
    Rep Power
    2


    Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Well done.

    Thank you Sir.

  9. #9
    Join Date
    Mar 2012
    Posts
    2
    Rep Points
    1.1
    Mentioned
    0 Post(s)
    Rep Power
    0



    Yes Reputation No
    Thanks alot guys much appreciated! this will help @hobbit382 it was initially an overheating problem then I got a "bush-mechanic" and he messed it up with the helicoils drilled too much now basically can't do anything on it but suggestions are welcome thanks again.

  10. #10
    Join Date
    Apr 2010
    Location
    florida
    Posts
    143
    Rep Points
    97.8
    Mentioned
    10 Post(s)
    Rep Power
    0


    Yes Reputation No
    OP, if my insight is of any value, well, hobbit got it completely...

    Click here to enlarge Originally Posted by Sorena Click here to enlarge
    I learned that you can put the older head on the newer designed engine in BMW engines, but can't do the opposite. For example you can put M50's head on M52's block to have a M50B30, but i'm not sure about the M54.
    please explain your learnings, I'm curious to learn myself.
    Click here to enlarge

  11. #11
    Join Date
    Nov 2010
    Location
    le Paris
    Posts
    6,648
    Rep Points
    -164.0
    Mentioned
    48 Post(s)
    Rep Power
    0


    Yes Reputation No
    Click here to enlarge Originally Posted by bluejeansonfire Click here to enlarge
    please explain your learnings, I'm curious to learn myself.
    I talked $#@!? I was drunk when i posted that and i'm still drunk to answer.

  12. #12
    Join Date
    Dec 2011
    Posts
    183
    Rep Points
    123.0
    Mentioned
    5 Post(s)
    Rep Power
    2


    Yes Reputation No
    Click here to enlarge Originally Posted by Dr.P Click here to enlarge
    Thanks alot guys much appreciated! this will help @hobbit382 it was initially an overheating problem then I got a "bush-mechanic" and he messed it up with the helicoils drilled too much now basically can't do anything on it but suggestions are welcome thanks again.
    I've used 11mm timecerts and s54 headbolts to fix messed up Timecert jobs, but that would depend on how bad the block was messed up. Also Bluejeansonfire has a method of fixing the block that would probably work quite well. But if you already have a m54 block probably wouldn't be too hard to just swap everything over.

  13. #13
    Join Date
    Nov 2010
    Location
    Spokane
    Posts
    149
    Rep Points
    207.4
    Mentioned
    0 Post(s)
    Rep Power
    3


    Yes Reputation No
    I believe the issue which affects whether the heads will fit is that m54 and m52 have different coolant passages. Maybe it can be machined to work.

    Not sure where the m52tu falls as far as compatibility.

  14. #14
    Join Date
    Apr 2010
    Location
    florida
    Posts
    143
    Rep Points
    97.8
    Mentioned
    10 Post(s)
    Rep Power
    0


    2 out of 2 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sorena Click here to enlarge
    I talked $#@!? I was drunk when i posted that and i'm still drunk to answer.
    poop came out of your mouth, you should delete it so someone doesn't read it and misunderstand. If you need it explained, send me a PM.

    Click here to enlarge Originally Posted by metrik Click here to enlarge
    I believe the issue which affects whether the heads will fit is that m54 and m52 have different coolant passages. Maybe it can be machined to work.
    Click here to enlarge Originally Posted by metrik Click here to enlarge

    Not sure where the m52tu falls as far as compatibility.


    Don't try. It's more hardcore than it just doesn't line up and a few passages need massaging or epoxy. The m54 coolant flows in reverse. the m52 lacks a massive coolant main that sits on the drivers side of the motor near the front, there's nothing to match that to on the m52. The m52 and m54 are tremendously similar. However, you shouldn't mix blocks and heads, but beyond that mix and match parts as you please, very few exceptions.

    The m52tu is an m54 with less stroke, a cable throttle, ms42 computer, asc... it's really the same casting block and head as an m54.
    Last edited by bluejeansonfire; 03-30-2012 at 01:40 PM.
    Click here to enlarge

  15. #15
    Join Date
    Nov 2010
    Location
    Spokane
    Posts
    149
    Rep Points
    207.4
    Mentioned
    0 Post(s)
    Rep Power
    3


    Yes Reputation No
    Blue jeans, thanks for clarifying. I shouldn't have made it sound so simple.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •