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  1. 07-20-2018, 04:20 PM #1
    rwoo
    rwoo is offline New Member
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    mercury block id

    does anyone have or know where to find information on the following mercury cylinder block.858-5181,the bore is 3.125 , has rod numbered 625-5250 with no part # on the very light 3 ring pistons. also has vertical 5 petal reeds and the bore is not a chrome bore.
    Last edited by rwoo; 07-20-2018 at 05:30 PM.
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  2. 07-20-2018, 05:38 PM #2
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    mach351
    mach351 is offline 8000 RPM
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    2.0L......three ring pistons would make me thinks it’s old. Pics?


    '95 STV "The Blue Goose"
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  3. 07-20-2018, 05:52 PM #3
    rwoo
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    Quote Originally Posted by mach351 View Post
    2.0L......three ring pistons would make me thinks it’s old. Pics?
    havent learned the pic thing yet but working on 430182 is also on the side of the block thank you for the reply
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  4. 07-20-2018, 08:28 PM #4
    Merc 2.5's Avatar
    Merc 2.5
    Merc 2.5 is offline Screaming And Flying!
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    2.0
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  5. 07-21-2018, 05:30 AM #5
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    tlwjkw
    tlwjkw is offline Screaming And Flying!
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    Quote Originally Posted by mach351 View Post
    2.0L......three ring pistons would make me thinks it’s old. Pics?
    ……. very old.
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