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Thread: S54 rod bearings

  1. #1
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    S54 rod bearings

    I was reading the latest issue of Race Engine Technology (an excellent if somewhat pricey English publication) when I noticed the ad for King Race Bearings lists a new application for BMW S54B32 rod bearings, P/N CR6877XP. They seem to specialize in coated and fully grooved bearings. According to their website (www.kingracebearings.com) they are located in New Jersey.

    Just wondering if any of the experts here have any experience with their product, either in race or street applications.

    Marty

  2. #2
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    News to me, but the cognoscenti building British engines (specifically Healeys & MGs) are shying away from them, in part because of their lack of quality with other engine components.

    There is however, some other news about S-54 bearings; there will be some new to market Clevite bearings that have been spec'd with an additional .0005" (per shell half, to yield .0025" final clearance). AND these, including high performance coating will cost significantly LESS than buying standard BMW bearings!

  3. #3
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    Quote Originally Posted by Randy Forbes View Post
    News to me, but the cognoscenti building British engines (specifically Healeys & MGs) are shying away from them, in part because of their lack of quality with other engine components.

    There is however, some other news about S-54 bearings; there will be some new to market Clevite bearings that have been spec'd with an additional .0005" (per shell half, to yield .0025" final clearance). AND these, including high performance coating will cost significantly LESS than buying standard BMW bearings!
    That is great news. Clevite bearings have been the choice of race engine builders for many many years.
    1999 M Coupe Boston Green, Beige, H&R/Bilsteins, Underdrive Pulleys, Euro 6 speed, UUC SSK and Randy Forbes in the back
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  4. #4
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    Quote Originally Posted by Randy Forbes View Post
    There is however, some other news about S-54 bearings; there will be some new to market Clevite bearings...
    Any idea on the ETA? And where exactly can you purchase the Clevite ones? Google is only bringing me a lot of Summit/Jegs links (that do not carry our variety), and there doesn't appear to be a Clevite website other than a basic splash page on the parent company site.

  5. #5
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    Quote Originally Posted by SGs54MC View Post
    Any idea on the ETA? And where exactly can you purchase the Clevite ones? Google is only bringing me a lot of Summit/Jegs links (that do not carry our variety), and there doesn't appear to be a Clevite website other than a basic splash page on the parent company site.
    I'm in the process of getting set up to offer them, but out of consideration for Terry, you'd have to contact me outside of the forum.

  6. #6
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    Quote Originally Posted by Randy Forbes View Post
    I'm in the process of getting set up to offer them, but out of consideration for Terry, you'd have to contact me outside of the forum.
    Might you keep us posted here in terms of your experience with these?? Please :-) But a little more oil (film) in there might help with not spinning bearings at high revs etc :-)

  7. #7
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    Hi Randy,
    Im guessing you were referring to the BE Bearings which are now out on the market? Have you installed any yet? Is this your recommended bearing now? Recommend using stock bolts?

    From reading on m3forum thread it seems the guy who measured the new BE/Clevite bearings noted much tighter tolerances with the Clevite/BE bearings vs OEM...about to order a set for my S54 E36 M3.

    Thanks!

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