for 355 owners who have replaced your valve guides | FerrariChat
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for 355 owners who have replaced your valve guides

Discussion in '348/355' started by Ferraripilot, Sep 20, 2007.

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  1. Ferraripilot

    Ferraripilot F1 World Champ
    Owner Project Master

    May 10, 2006
    17,883
    Atlanta
    Full Name:
    John!
    #1 Ferraripilot, Sep 20, 2007
    Couple of questions for those of you who have had your heads pulled and guides replaced.

    Did you find a superior aftermarket guide that is supposed to last a long time, or did you use an OEM replacement? How is the job holding up so far? Are you assuming this to be a permanent fix, or could this issue come up again in the next few years? Any repeat offenders?

    JS
     
  2. 285ferrari

    285ferrari Two Time F1 World Champ
    Sponsor

    Sep 11, 2004
    20,973
    MD and NE
    Full Name:
    Robbie
    #2 285ferrari, Sep 20, 2007
    Some independent Ferrari mechanics could answer that alot better than the owners..
     
  3. DIGMAN52

    DIGMAN52 F1 Rookie
    Owner Rossa Subscribed

    Jan 30, 2004
    4,105
    Dallas Texas
    Full Name:
    Philip C
    #3 DIGMAN52, Sep 20, 2007

    Norwood Performance, a f/chat sponsor, installed Ferrari guides, which are out of different material than the originals. 2 years, and 5,000 miles later, it runs perfectly, and no issues. Call Mike of James there to find out what the material is.
     
  4. cuneo

    cuneo Formula 3
    Silver Subscribed

    Nov 20, 2006
    2,480
    #4 cuneo, Sep 21, 2007
    I will do the guides on my 95 355 w/ 26K mi. next year, as well as replacing the stock headers. I have read as many threads I can find on valve-guide replacement prior to my recent purchase, but I couldn't find a definitive answer as to what the best material is to use. I remember something about some type of crazy complex alloy, but I can't find the thread anymore. This is a great thread, and I'm curious to see what develops!
     
  5. Merdav

    Merdav Formula Junior

    Apr 11, 2004
    980
    #5 Merdav, Sep 21, 2007
    Originals were brass, replacements from dealer I believe are steel sintered.
     
  6. Aeroengineman

    Aeroengineman Formula Junior

    Oct 5, 2003
    897
    Maple Valley, WA
    Full Name:
    Dave Tegeler
    #6 Aeroengineman, Sep 21, 2007
    At 10,000 miles engine runs perfectly when not being turned off by faulty Slow Down light reading.
     
  7. Ferraripilot

    Ferraripilot F1 World Champ
    Owner Project Master

    May 10, 2006
    17,883
    Atlanta
    Full Name:
    John!
    #7 Ferraripilot, Sep 21, 2007
    Down the street from my office is the PEP valve train manufacturing and sales facility here in Las Vegas. I stopped by the other day and chatted it up with one of the reps there specifically regarding the 355 valve guide issue. I was advised they can manufacture a superior valve guide for about $7 or $8 a pop. I cannot recall the material they make them out of, but I was advised they are by far the best in the business by a couple different sources (not Ferrari people though).

    There is no sense in using inferior components that might fail again, so why not take matters into our own hands. If Ferrari or whoever has come up with a long-term solution, I may be wasting my breath here, but heck, you can't beat less than $10 a guide.

    I do not have a TIN so cannot order anything from them, but someone else might be able to use this resource. The rep I spoke with req I send in a guide and they will manufacture it.
     

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