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buick engines... how do i tell the difference?

Discussion in 'The Hokey Ass Message Board' started by oldskool55, Mar 1, 2006.

  1. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

    how do i know if i have a buick 350 or a 455?
     
  2. Judd
    Joined: Feb 26, 2003
    Posts: 1,894

    Judd
    Member

    Try here.
    http://www.v8buick.com/





     
  3. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

  4. squirrel
    Joined: Sep 23, 2004
    Posts: 47,946

    squirrel
    Member

    You just look at it...if it's huge, it's a 430 or 455. If it's not very big, then it's a 350.

    you might try going to google.com, click "images", then type in

    buick 350 engine

    and then try it with 455. maybe that'll help?
     

  5. 350's and the 400-430 & 455 look very similar and it's easy to make a mistake.

    One failsafe way, and it's easy is to look for three 1" high cast in numbers on top of the bellhousing area above the flywheel/flexplate.
    These can be seen most times with the engine in the car.
    Bring a flashlight.

    I've seen these numbers on 430's and 455's, but am not sure if they are on the 400.

    There's also a set of cast in numbers on the block sidewall behind the starter.
    These are about a 1/2" high.
    If I remember right, these numbers are upside down.

    If you do the bore and stroke measuring bit, the stroke on the 430 and 455's is the same so you'll need a head removed so you can measure the bore.
     

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