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Thread: Vette motor heads
          
   
   

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  1. 04-12-2006 03:43 PM #4
    robot's Avatar
    robot
    robot is offline CHR Member
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    Casting numbers are either 6, 7 or 8 digits for Chevy SB heads....1981 was
    the last 6 digit casting number for a small block.

    The casting will dictate the combustion chamber volume from which a person can calculate the Compresson Ratio....if they know a couple of other tidbits.

    The casting number is located between the rocker pedestals, usually between the second and third from one end.
    Last edited by robot; 04-12-2006 at 03:48 PM.
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