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Thread: Question about valve springs

  1. #1
    Join Date
    Nov 2006
    Location
    Chicago
    Posts
    1

    Default Question about valve springs

    Hi guys,

    I have a 95 M3 with 200k+ miles on it. It currently needs a head gasket (the head might even be cracked, don't have it off yet) and the hole for spark plug #4 is loose so I sourced another good head from an M50. It is complete and suppose to have only 90K miles on it. I know the M3 head uses different valve springs (going to swap in my M3 cams). What are my options for valve springs? Here are the 3 I can think of, let me know if I missed any.

    1. Keep the existing M50 springs
    2. Switch over the M3 head components <- Would probably want to replace the springs with new OEM parts but at least I have the other valve components already
    3. Aftermarket solution?

    Anyone have personal experience with this? I like using factory parts but I don't have a lot of extra cash right now.

    Thanks!

  2. #2
    Join Date
    May 2004
    Location
    Japan
    Posts
    9,249

    Default

    Is that M3 a US version of EURO version? The engine are completely different.
    Maybe you first use your VIN and check the original parts in the head on RealOEM.com Online BMW Parts Catalog
    and then compare it with a normal M50 head.
    Another interesting link Turner Schrick Cam kit Install - BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)
    supertech springs Valve spring recommendations - Bimmerforums - The Ultimate BMW Forum
    Supertech High Performance Valve Spring Set - E36 M3, 325i, 328i - Turner Motorsport
    BMW Parts, Modifications,Performance,News,Links,Information

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