Endura Carb. Fitting #6 to 7/8-20

The Endura Carb. Fitting #6 to 7/8-20 is a precision carburetor inlet fitting designed for fuel system builders and engine tuners working with Holley carburetors. This straight adapter bridges the gap between modern -6 AN fuel line connections and the 7/8-20 male inlet thread found on classic and contemporary Holley carb platforms. Whether you're restoring a vintage engine, upgrading a street rod fuel system, or dialing in a performance build, this fitting eliminates guesswork and ensures a clean, leak-free connection at the carburetor's fuel inlet port.

Constructed from lightweight aluminum and finished with nickel anodizing for superior corrosion resistance, the Endura fitting handles the thermal cycling and chemical exposure inherent in fuel system environments. The male-to-male configuration—-6 AN on one end and 7/8-20 on the other—allows seamless integration into existing fuel line routing without sacrificing durability or flow. Russell's manufacturing standards ensure tight tolerances that prevent weeping at connection points, critical for fuel-injected or carbureted engines where even minor leaks compromise performance and safety. The compact 2.55 x 1.55 x 4.85-inch footprint and negligible 0.09 lbs weight make installation straightforward in tight engine bays where space is a premium.

Mechanics and fabricators building custom fuel systems for Holley carburetors will find this fitting indispensable for adapting modern braided stainless or rubber fuel lines to original carburetor ports. It's equally valuable when converting from factory hard-line fuel systems to modern -6 AN hose kits, offering the thread compatibility Holley carbs demand. Installation requires only basic AN wrench work—secure the -6 AN side to your fuel line with a standard AN wrench, then thread the 7/8-20 end into your carburetor inlet. Pair with quality fuel line, AN fittings, and proper hose routing practices for a professional-grade fuel delivery system that runs cool and stays sealed under all operating conditions.