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knucklehead cylinders 61/74 cylinders

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  • knucklehead cylinders 61/74 cylinders

    when did they start using thicker base cylinders.Were the 61 cylinders cut down at the top to lower the head for A shorter stroke. Is this what caused the lip at the top of the 61 cylinder.Thanks for your time

  • #2
    Late EL and FL cylinders are totally different castings. Jerry

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