Billet Alm. Fuel Rails - GM LS Factory Intakes

The Holley Billet Aluminum Fuel Rails for GM LS Factory Intakes represent precision engineering built for high-performance LS engine platforms. Designed for builders and technicians who demand reliability under sustained load, these fuel rails deliver consistent fuel distribution across all cylinders in factory intake configurations. Whether you're tuning a street engine or managing fuel pressure in a modified platform, proper fuel rail design directly impacts throttle response, cold-start behavior, and long-term system stability.

Machined from billet aluminum, these rails provide superior durability and thermal stability compared to cast alternatives, resisting vibration fatigue and maintaining accurate fuel metering even under aggressive boost or high RPM operation. The compact 10.4 x 2.7 x 17.6 inch footprint integrates seamlessly with GM LS factory intake manifolds, eliminating adapter complications and reducing installation complexity. At 3.75 pounds, the lightweight design minimizes parasitic weight while maintaining the rigidity necessary for consistent fuel delivery across the entire RPM band—critical for engines running variable fuel pressure or sequential fuel injection tuning.

These Holley fuel rails are ideal for LS engine swaps, restoration builds, and performance upgrades where OEM fuel system architecture requires modernization. They integrate directly with GM LS factory intake manifolds, making installation straightforward for technicians familiar with LS platform fuel management. Compatibility with factory intake geometry ensures no port matching or manifold modification is needed, allowing focus on fuel line routing and regulator tuning rather than fabrication work.