Febi HD Rocker arms
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89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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20% off right now. I ordered 24 rockers while the price is good. Which is a good price as OEM rockers came with eccentrics and its hardware all ready do go. https://parts.bmwofsouthatlanta.com/?utm_source=google&utm_medium=cpc&adtype=&utm_id=1 8142295012&utm_adgroupid=&utm_targetid=&utm_matcht ype=&utm_network=x&utm_device=c&utm_term=&gad_sour ce=1&gad_campaignid=21179745077&gbraid=0AAAAADsJeS GXlAu2-07ncWR-t6pBz53ai&gclid=EAIaIQobChMIpJOEiKK3kwMVOF9HAR3hTh gpEAAYASAAEgKqefD_BwELast edited by zaq123; 03-24-2026, 08:04 PM.Comment
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Interesting read. It's not clear whether the arms MM used were the same that Febi makes now. Idk if it was that thread or another one I found that showed some differences vs the IE HD ones. Either way, I'm running a stock cam so I think I should be OK.Comment
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The MM arms i used in 2006 and 2008 were not FEBI they were the same as the genuine OE it is possible that MM found out the supplier and purchased through another source89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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spring pressure is essential factor here too, especially for the first 30 min of cam break-in. With that being said, IE HD rockers that I had were a step better pad finish vs Febi HD. Febi HD pad was a porous mess. Made in China. OEM rockers aren't even close to both of them in quality of the pad finish, top notch.
For stock cam, there are zero reasons to go HD.. I can see high lift cam/ high revving engine maybe demands stronger rockers and one would sacrifice cam/rocker longevity for a sake of not breaking the rocker. But for stock cam, OEM rockers/springs all the way to keep your cam lasting. If you can, return them, splurge for OEM and sleep well at night. what I'd doComment
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Aight boys,
I need some rockers and after reading this I'm a little skeptical about the febi situation
I called my rep asking about the febis they got in stock, but I'm a little reluctant now....
BH is out of the steel ones unfortunatelyComment
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Get the OE ones, if you plan on keeping the car/engine and want the best chance for it to lastLast edited by digger; Yesterday, 01:41 PM.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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agreed. I went through the trouble to order all rockers available (less roller fancy ones), tested them with Rockwell hardness test files all that shit.. Long story short, OEM is the way to go. Get them while still available. Extra money well spent if you want to keep M20 running.Comment


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