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  • Original price $1,594.95 - Original price $1,594.95
    Original price
    $1,594.95
    $1,594.95 - $1,594.95
    Current price $1,594.95

    S&S Cycle - 4" Sidewinder Big Bore Kit for 1999-2006 HD Big Twin Models - Silver

    S&S
    1+ in stock

    Inspired by S&S Cycle Pro Stock Drag Race engines, these updated big bore kit utilizes a ductile cast iron liner wrapped in cast aluminum for o...

    View full details
    Original price $1,594.95 - Original price $1,594.95
    Original price
    $1,594.95
    $1,594.95 - $1,594.95
    Current price $1,594.95
  • Original price $1,550.95 - Original price $1,550.95
    Original price
    $1,550.95
    $1,550.95 - $1,550.95
    Current price $1,550.95

    S&S Cycle - 4" Sidewinder Big Bore Kit for 1999-2006 HD Big Twin Models - Wrinkle Black

    S&S
    1+ in stock

    Inspired by S&S Cycle Pro Stock Drag Race engines, these updated big bore kit utilizes a ductile cast iron liner wrapped in cast aluminum for o...

    View full details
    Original price $1,550.95 - Original price $1,550.95
    Original price
    $1,550.95
    $1,550.95 - $1,550.95
    Current price $1,550.95
  • Original price $1,345.95 - Original price $1,345.95
    Original price
    $1,345.95
    $1,345.95 - $1,345.95
    Current price $1,345.95

    S&S Cycle - 4" Sidewinder Big Bore Kit for 2007-2017 HD Big Twin Models - Silver

    S&S
    1+ in stock

    Inspired by S&S Cycle Pro Stock Drag Race engines, these updated big bore kit utilizes a ductile cast iron liner wrapped in cast aluminum for o...

    View full details
    Original price $1,345.95 - Original price $1,345.95
    Original price
    $1,345.95
    $1,345.95 - $1,345.95
    Current price $1,345.95
  • Original price $1,549.95 - Original price $1,549.95
    Original price
    $1,549.95
    $1,549.95 - $1,549.95
    Current price $1,549.95

    S&S Cycle - 4" Sidewinder Big Bore Kit for 2007-2017 HD Big Twin Models - Wrinkle Black

    S&S
    1+ in stock

    Inspired by S&S Cycle Pro Stock Drag Race engines, these updated big bore kit utilizes a Ductile Cast Iron liner wrapped in cast aluminum for o...

    View full details
    Original price $1,549.95 - Original price $1,549.95
    Original price
    $1,549.95
    $1,549.95 - $1,549.95
    Current price $1,549.95

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