454310 57-74 style petcock

This Spyke fuel valve is a high-quality, high-flow option for vintage Harley-Davidsons, fitting 1966 to 1974 Big Twin and 1957 to 1974 Sportster models with internal 3/8 NPT tank threads. It is designed for use with a 5/16 inch fuel hose and features a unique rotating knob on the bottom to control the flow. What sets this petcock apart is its versatility; it includes a special swivel head fuel outlet that allows you to switch from a straight configuration to a custom angle, making fuel line routing much easier in tight spaces. It is a reliable, well-engineered piece of hardware for anyone looking to maintain or restore an early Shovelhead or Ironhead.