Main bearing clearance?

Discussion in 'Street/strip 400/430/455' started by msamuel, Sep 15, 2021.

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  1. Jim Weise

    Jim Weise EFI/DIS 482

    Looking up?:D

    I am a Buick engine builder and known all that stuff from memory.. I work with it every day.

    Any good bearing catalog has all the housing bore and rod bore and shaft dimensions in it.

    But, your welcome.. :)

    JW
     
    msamuel and knucklebusted like this.
  2. telriv

    telriv Founders Club Member

    I bought the shim stock in sheets so all I have to do is cut it to the proper width, done. It's been a long time but if I remember correctly it came in .0005", 0010" & up from there. I would never have thought to try & take up .010" with shim stock although I've heard of others who have.

    Tom T.
     
    Last edited: Sep 17, 2021
    Mart and msamuel like this.
  3. msamuel

    msamuel Member

    I took the crank to another shop and he said the same thing. So I'll be taking the block over on Monday , thanks.
     
  4. Mart

    Mart Gold level member

    I like Tom's .0005- .001 shim sheet stock idea. I would try it as it would increase the bearing crush to the appropriate standards.
     
  5. msamuel

    msamuel Member

    Does that really work? Do you shim one half only? I feel like it would lift the ends a bit and create a step in between the the two half's. Or does the shim go around the whole bore?
     

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