LSXr Billet Fuel Rail Kit - LS1/LS6

The FAST ELECTRONICS LSXr Billet Fuel Rail Kit for LS1/LS6 engines is a precision-engineered fuel delivery system designed for serious engine builders and performance enthusiasts running Gen III Chevrolet small-block platforms. Built from 6061-T6 aluminum and finished in vibrant red anodize, this fuel rail kit delivers the flow capacity and reliability required for high-horsepower applications while maintaining clean, professional aesthetics under the hood.

The kit features eight AN female O-ring inlet and outlet ports, enabling flexible fuel line routing and compatibility with aftermarket fuel system configurations. The billet aluminum construction provides superior strength-to-weight ratio compared to cast alternatives, while the red anodized finish resists corrosion and maintains appearance across extended engine bay exposure. All necessary brackets and fittings are included, streamlining installation on FAST LSXR LS1/LS6 intake manifolds and reducing the need for sourcing additional hardware. The O-ring port design ensures leak-free connections under sustained fuel pressure and vibration cycles typical of naturally aspirated and forced-induction builds.

This fuel rail kit is engineered for engine builders, performance tuners, and enthusiasts upgrading LS-powered vehicles with custom fuel delivery systems. The modular eight-port design accommodates various fuel injector counts and pressure regulator placements, making it suitable for both naturally aspirated and turbocharged applications. The included brackets ensure secure mounting and proper vibration isolation, critical factors in preventing fuel system failures during sustained wide-open throttle operation or high-boost scenarios.

LS platform fuel rails require precise port spacing and pressure rating to function correctly across a wide range of fuel system designs. The LSXr kit's billet construction and OEM-derived port configuration make it a preferred choice for builders seeking factory-grade reliability with aftermarket flexibility. Weighing 2.27 lbs, the kit adds minimal mass while delivering the structural rigidity necessary for consistent performance over thousands of engine hours.