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BBC 402 power ratings

Discussion in 'The Garage' started by DieselBurb, Mar 17, 2004.

  1. DieselBurb

    DieselBurb 1/2 ton status

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    I recently bought a 402 BBC and I want to know what it is rated at. The number off of the front pad is T0512CLB, the block casting number is 3969854, and it was cast in April 1971.

    I've read that the "T" indicates a truck engine. Does this mean it is a tall deck?

    Thanks.
     
  2. big pappa b

    big pappa b 3/4 ton status

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    The "T" stands for Tonowanda..the plant it was manufactured in
    0512= May 12th
    The CLB has something to do with the type of car it was from, transmission option or something like that
    As for horsepower it's hard to tell. Best guess is 240-330 depending on what type car it came in, heads, compression. Lots of variables
     
  3. the cork

    the cork 1/2 ton status

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    [ QUOTE ]
    I recently bought a 402 BBC and I want to know what it is rated at. The number off of the front pad is T0512CLB, the block casting number is 3969854, and it was cast in April 1971.

    I've read that the "T" indicates a truck engine. Does this mean it is a tall deck?

    Thanks. [/quote

    (T) indicates engine assembly plant tonawanda, 05 indicates
    month assembled may, 12 indicates day of assembly, C
    means chevrolet passenger car, a truck motor would have
    a T, LB is the engine suffix code, CLB idicates it was
    used for passeger cars 300 horse power,

    i think only the 366 and 427 engines came in the tall block option,
     
  4. big pappa b

    big pappa b 3/4 ton status

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    [ QUOTE ]

    i think only the 366 and 427 engines came in the tall block option,

    [/ QUOTE ]


    /forums/images/graemlins/waytogo.gif /forums/images/graemlins/waytogo.gif
     
  5. DieselBurb

    DieselBurb 1/2 ton status

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    Cool, thanks.

    What about the torque values? How much can I figure it makes?
     

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