#8 Holley Fuel Line

The #8 Holley Fuel Line by AEROQUIP is purpose-built for carbureted performance engines, particularly Holley 4150 models where fuel delivery consistency defines engine reliability and responsiveness. This braided stainless steel fuel distribution block serves as the critical junction between your fuel pump and carburetor, managing the transition from a single 8 AN inlet to dual 7/8-20 inch male outlets that feed fuel evenly to the carburetor's twin fuel bowls. Whether you're tuning a street machine, drag racer, or classic hot rod, this component eliminates single-feed fuel starvation issues and ensures balanced pressure across both carburetor circuits during acceleration and sustained wide-open throttle runs.

Construction quality is non-negotiable in fuel delivery systems, and AEROQUIP's braided stainless steel hose assembly resists heat cycling, vibration, and ethanol-blend fuel degradation far better than rubber or single-wall aluminum alternatives. The dual 7/8-20 inch outlets employ SAE male threads—a industry-standard specification—allowing direct bolt-on installation to carburetors equipped with matching inlets without reducers or adapters. The blue, red, and silver color-coded hose sections simplify circuit identification during installation and troubleshooting, reducing the risk of reversed fuel flow or cross-feeding between carburetor stages. Weighing just 0.9 pounds, this assembly minimizes under-hood mass while maintaining structural rigidity needed to withstand fuel system pressures typical of mechanical or electric pump-fed carbureted engines.

Mechanics and engine builders favor this fuel line kit for Holley 4150 carburetors during carburetor swaps, engine bay rebuilds, or fuel system upgrades where OEM single-feed lines create lean-condition hesitation or fuel starvation at peak RPM. Installation is straightforward—connect your fuel pump outlet to the 8 AN male inlet, then thread both 7/8-20 outlets to the carburetor's fuel bowl ports using thread sealant and a wrench to ensure leak-free operation. Compact dimensions (4.1 x 1.7 x 14.45 inches) fit tight engine compartments common to 1960s–1980s muscle cars and modern restorations alike. For any carbureted application demanding reliable, balanced fuel distribution, this AEROQUIP assembly delivers proven performance and long-term durability.