-6AN Male to 5/8-18 Female Inverted Flare

The Vibrant Performance -6AN Male to 5/8-18 Female Inverted Flare adapter is an essential hose fitting for fuel system modifications, turbo feed lines, and custom fuel rail installations on high-performance vehicles. This adapter bridges the gap between -6AN hose ends and 5/8-18 inverted flare ports commonly found on fuel blocks, carburetors, and vintage fuel system components. Whether you're building a stroker engine fuel system, retrofitting a modern injected setup into a classic chassis, or fabricating custom fuel delivery plumbing, this compact connector eliminates the need for additional adapters in your fuel line routing.

Vibrant Performance's adapter features a precision-engineered inverted flare design that creates a leak-free seal under pressure—critical for fuel applications where vibration and thermal cycling can compromise weaker connections. The -6AN male end threads directly onto standard -6AN hose ends, while the 5/8-18 female inverted flare port accepts barbed fittings or flared hard line tubing common in fuel block assemblies and old-school carburetor fuel inlet ports. Weighing just 0.03 lbs and measuring 3.55 inches in length, this adapter minimizes packaging constraints and fits seamlessly into tight engine bay fuel system layouts without requiring specialty tools beyond basic AN line wrenches.

Mechanics and engine builders rely on this Vibrant Performance fitting when converting fuel systems between metric and SAE standards, or when mixing old and new fuel technologies. Its versatility makes it a valuable addition to any performance enthusiast's toolkit, ensuring compatibility across various fuel system configurations. With this adapter, you can achieve a secure and efficient connection, enhancing the overall performance and reliability of your vehicle's fuel system.