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Big Block chev distance from rear block face to flywheel flange on crankshaft?

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    Hemi Joel
    Superhero BangShifter

  • Hemi Joel
    replied
    What is different if I use a one piece seal?

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  • anotheridiot
    Superhero BangShifter

  • anotheridiot
    replied
    Originally posted by Hemi Joel View Post
    OK, got it! thanks much.
    I just added that because it was a more consistent measurement than the face you are looking for.

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  • Hemi Joel
    Superhero BangShifter

  • Hemi Joel
    replied
    OK, got it! thanks much.

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  • anotheridiot
    Superhero BangShifter

  • anotheridiot
    replied
    Originally posted by Hemi Joel View Post
    Thanks! Just to make sure, does the crank stick out .205" from the block face, or is it recessed .205 into the block.
    .205 between the rear of the block and the rear of the crank face.

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  • squirrel
    Benevolent Ruler of the Universe

  • squirrel
    replied
    sticks out about 3/4 inch.

    Click image for larger version

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  • Hemi Joel
    Superhero BangShifter

  • Hemi Joel
    replied
    Thanks! Just to make sure, does the crank stick out .205" from the block face, or is it recessed .205 into the block.

    Leave a comment:

  • anotheridiot
    Superhero BangShifter

  • anotheridiot
    replied
    lemme grab a caliper, or find a caliper, I got one on a stand now.


    getting between .7118 to .7215 as I rotate the crank around measuring at the same point when it clears, so guessing my face is somewhat off. It was .205 between the back of the crank face to the rear of the block consistently.

    Should get you in the ballpark.
    anotheridiot
    Superhero BangShifter
    Last edited by anotheridiot; January 28, 2021, 08:04 AM.

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  • squirrel
    Benevolent Ruler of the Universe

  • squirrel
    replied
    I do, but it's at my old house, and I'm at the new one.

    The small block and big block are the same, also the same as the four and six engines. Although the crank flange changed when they went to a one piece seal, 1986 on small blocks, early 90s on big blocks, I think.



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  • Hemi Joel
    Superhero BangShifter

  • Big Block chev distance from rear block face to flywheel flange on crankshaft?

    Hi, does anyone have a BBC laying around who could measure the distance from the rear of the block (the face that the bellhousing bolts to) to the rear flange of the crankshaft (the surface that the flywheel bolts to? I'm working on designing a custom crank for a Lincoln 337, but it is going to have chevy stuff on the front and back. Thanks, Joel
    Hemi Joel
    Superhero BangShifter
    Last edited by Hemi Joel; January 27, 2021, 08:13 PM.
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