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Thread: Checking on getting the correct valve stem seals for 259

  1. #1
    Speedster Member voxnut's Avatar
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    Checking on getting the correct valve stem seals for 259

    Hi All,

    I've been searching the threads on replacing the valve stem seals - I'm having smoke on start up, and as far as I know they seals have never been replaced. I'm doing my Edelbrock swap over Memorial Day weekend and figured it would be a good time to do the valve stem seals at the same time.

    I wanted to double check on which seals to get. I see some references to Ford 302 seals possibly being a suitable replacement, but they are kinda vague.

    Are they correct? If so, is there a difference between early and late 302s? Which ones should I get?

    Thanks in advance for your time and replies.

    All the best,
    Dean
    Dean Seavers
    Sacramento, CA

  2. #2
    Silver Hawk Member
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    FWIW, engine rebuilders buy them by the box of 500. Stop into a local rebuilder and ask for 9/16"(.562") OD X 11/32" ID positive seals. One Enginetech number is S9210.

    jack vines
    PackardV8

  3. #3
    President Member
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    Brand wise, most all the same...Chevy, Ford, Chrysler.
    They all use 11/32" stem valves, just like the Stude engine, therefore, all of the seals will work, and all are very similar.
    Also see Jacks comment above.

    Mike

  4. #4
    President Member r1lark's Avatar
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    Quote Originally Posted by PackardV8 View Post
    FWIW, engine rebuilders buy them by the box of 500. Stop into a local rebuilder and ask for 9/16"(.562") OD X 11/32" ID positive seals. One Enginetech number is S9210.

    jack vines
    Jack, is any machining required on the valve guide to use this seal?
    Paul
    Winston-Salem, NC
    Visit The Studebaker Skytop Registry website at: www.studebakerskytop.com

  5. #5
    Silver Hawk Member
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    Quote Originally Posted by r1lark View Post
    Jack, is any machining required on the valve guide to use this seal?
    No.

    jack vines
    PackardV8

  6. #6
    President Member
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    I used the Fel-Pro SS 72683 Valve Stem Seal Set (2 sets needed), fits Ford & Mercury 140, 302 engine from 7/15/86-92.

    Didn't do any machining and they work just fine, really cut down on blue smoke.
    Dan Peterson
    Montpelier, VT
    1960 Lark V-8 Convertible
    1960 Lark V-8 Convertible (parts car)

  7. #7
    Speedster Member voxnut's Avatar
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    Thanks much for all the replies!

    Dean
    Dean Seavers
    Sacramento, CA

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