Fuel Rail Adapter Kit Quick Connect GM Rail

The Fuel Rail Adapter Kit Quick Connect GM Rail by Holley is purpose-built for automotive enthusiasts and professional mechanics upgrading fuel delivery systems on General Motors platforms. This adapter kit bridges the gap between modern quick-connect fuel line technology and traditional GM fuel rail configurations, eliminating the need for custom fabrication or costly OEM replacements. Whether you're installing a carbureted fuel system, upgrading to EFI, or integrating aftermarket fuel components, this quick-connect adapter provides a plug-and-play solution that saves installation time and reduces potential fuel system leaks at connection points.

Engineered with precision by Holley, a leader in fuel system innovation, this adapter kit utilizes quick-connect coupling technology that ensures a positive, leak-free seal without requiring hose clamps or crimped fittings. The design accommodates the unique port configurations found on GM fuel rails, allowing seamless integration with both modern flexible fuel lines and high-flow hose assemblies. The compact profile—measuring 3.05 x 2.45 x 3.6 inches and weighing just 0.11 lbs—ensures it fits tight engine bays without requiring relocation of adjacent components, making it ideal for swap builds and tight installations where space is at a premium.

This adapter is essential for GM fuel system conversions, including LS engine swaps, carb-to-EFI transitions, and aftermarket fuel pump upgrades. Mechanics and fabricators benefit from the tool-free quick-disconnect design, which simplifies both installation and future fuel system service without breaking down the entire assembly. Compatible with GM fuel rail designs across multiple generation platforms, the Holley adapter minimizes fitment guesswork and ensures professional-grade reliability in street, strip, and competition applications.