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Thread: Big block ID

  1. #1
    Join Date
    Jan 2015
    Location
    lakewoodCO
    Posts
    4

    Default Big block ID

    How do I identify BBB , Where is the number on the block?

  2. #2
    Join Date
    Apr 2002
    Location
    Central Ohio
    Posts
    777

    Default

    5 Valve cover bolts will tell you if it is a 400/430/455. Look at the rear of the engine where the transmission bolts to the engine block. the cubic inches will be cast there.
    Brad Conley. 70 GSX Prototype, 71 Black GSX, 87 GNX Prototype, 75 Skyhawk, 2 86 GN's, 72 Centurion Convert and a host of other Buicks!



  3. #3
    Join Date
    Jan 2015
    Location
    lakewoodCO
    Posts
    4

    Default

    thanks for the info kenny462

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