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Thread: Drill or not

  1. #1
    Member CRAFTSMAN
    Join Date
    Jan 2004
    grove city,oh.

    Drill or not

    I am looking for a show of hands,to drill my sbc heads for 400 steam holes or not? This is what I am running in my bracket car.

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    Mar 2014
    If it is drag race only, you do not need them. Assuming you are putting them on a 400 block, you might want to consider tapping the steam holes in the block and plugging them. May prevent cracking from steam hole over to cylinder or bolt hole.

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