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305 v6

  1. T

    1966 GMC 2500 engine question

    Hello all, I am considering purchasing a 1966 GMC 2500 with a Gruman Aluminum body. It has a 305 v6 engine. I am considering converting it into a welding rig and use it for work. I remember reading how older engines relied on leaded gas to lubricate the valve guides and avoid pre-ignition...
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