Fuel Pump SBC 7.0-8.5 -10AN Inlet -8AN Outlet

The Fuel Pump SBC 7.0-8.5 -10AN Inlet -8AN Outlet (SKU ALL 40267) is purpose-built for small-block Chevrolet engines operating in the 7.0 to 8.5 PSI fuel pressure range, making it ideal for carbureted SBC applications and naturally aspirated performance builds. This pump bridges the gap between stock reliability and modified engine demands, serving builders who need consistent fuel delivery without the complexity of high-pressure systems. Whether you're restoring a classic muscle car, building a street rod, or tuning a weekend racer, this fuel pump delivers the flow and pressure stability required for predictable throttle response and fuel economy.

The -10AN inlet and -8AN outlet sizing reflects real-world fuel line optimization—the larger inlet diameter minimizes restriction from the tank, while the outlet is sized to prevent excessive fuel return pressure that can cause carburetor flooding or vapor lock. The 7.0–8.5 PSI operating window is engineered for carbureted fuel systems where excessive pressure damages needle-and-seat assemblies; this pressurized design ensures reliable priming and steady fuel column without the surging associated with gravity-fed or low-pressure mechanical pumps. Internal bypass regulation maintains stable pressure across varying engine speeds and loads, critical when intake manifold vacuum and engine load fluctuate rapidly during acceleration.

Mechanics and enthusiasts favor this pump for SBC swaps, hot rod conversions, and vintage race car builds where OEM fuel system capacity falls short but modern EFI pressure requirements are unnecessary. Installation requires standard -10AN and -8AN hose fittings and compatible fuel line routing; confirm your carburetor's maximum safe pressure rating before final setup to avoid needle-and-seat wear. The compact 7.45 x 4.4 x 7.85 inch footprint accommodates tight engine bay layouts common in street rods and classic restoration projects, while the 2.31 lb weight keeps overall vehicle balance uncompromised. This pump performs reliably across ambient temperatures and fuel types used in street and strip applications.