SBC Fuel Pump

The Holley 12-327-13 Small Block Chevy mechanical fuel pump is an essential component for engine builders and street mechanics working on carburetor-fed SBC platforms. This pump is designed to deliver consistent fuel flow to mechanical-style carburetors on classic and performance Small Block Chevrolet engines, ensuring reliability without the need for electric systems.

Featuring a diaphragm-driven design, the 12-327-13 pulls fuel from the tank and delivers it at the correct pressure for mechanical carburetor operation, typically between 4–7 psi. The pump mounts directly to the engine block via the fuel pump eccentric, simplifying installation and eliminating the complexities associated with electric pumps. Its robust construction is built to withstand the vibration and heat cycling of both street and strip applications.

Ideal for hot rods, muscle cars, and vintage racer builds, this mechanical fuel pump is perfect for any Small Block Chevy engine configured with a traditional mechanical fuel system. Installation is straightforward, requiring only basic hand tools and no wiring harness modifications, making it accessible for both novice and experienced mechanics.