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    Valve Spring Kit for KN-Series and 1936-'47 Knucklehead Engines

    Item #: 106-6398
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    $204.95

    This set of valve springs fit S&S KN-Series engines and stock 1936–'47 knucklehead engines. They will accommodate cams with valve lifts up to .480". The kit consists of inner and outer springs for four valves, spring collars, shims, and valve keepers.

     

    (Collars, shims, and valve keepers  are not shown)

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    These springs will not fit over stock guides. Stock guides must be turned down or S&S® Vintage guides must be used.