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sbc fuel pump pushrod question

Discussion in 'The Hokey Ass Message Board' started by johnod, Jun 1, 2012.

  1. johnod
    Joined: Aug 18, 2009
    Posts: 780


    Today i discovered the threaded hole in the front of the block that goes through to the fuel pump pushrod bore, doesn't.

    It's a blind hole, doesn't go through to the bore.

    Did GM change this a some date?

    Has anyone ever drilled and tapped the hole, or know anything about doing it?

    The reason i ask was I planned on using a roller tip pushrod, and that hole is required.

  2. CJS
    Joined: Dec 1, 2010
    Posts: 88


    I can't say I ever noticed a block that wasn't drilled through and tapped except a later versioin that had no fuel pump rod hole such as some later vortec versions. Just finish drilling the hole through and tap it if you need more threads.

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