Aluminum Y-Block

The Aluminum Y-Block by MOROSO (MPN 65160) is a precision fuel distribution manifold engineered for custom fuel system plumbing in performance engines and street rods. This lightweight aluminum component serves as a junction point where a primary fuel line splits into multiple secondary lines, enabling clean, organized fuel routing without the clutter of traditional T-fittings. Whether you're building a fuel-injected engine swap, upgrading a carburetor fuel supply system, or designing a complex multi-stage fuel delivery setup, the Y-Block consolidates connections and reduces leak points in your fuel system architecture.

Constructed from aluminum for durability and corrosion resistance, this Y-Block features one 1/2-inch hose barb inlet for primary fuel supply and two 3/8-inch hose barb outlets for secondary distribution lines. A 1/8-inch NPT female port provides additional versatility for gauges, regulators, or pressure relief integration. The compact footprint—measuring 5.4 x 1.55 x 7.2 inches—fits easily in tight engine bay layouts common to hot rods and performance vehicles. The aluminum construction keeps weight minimal at just 0.5 lbs while maintaining structural integrity under typical fuel system pressures.

Professional engine builders and fuel system fabricators rely on the MOROSO Aluminum Y-Block for fuel-injected engine conversions, carbureted performance builds, and dual-carb setups requiring parallel fuel feeds. The barbed connections accept standard rubber fuel hose with hose clamps, making installation straightforward for both OEM and custom applications. This manifold block is ideal for builders seeking a factory-grade alternative to welded or soldered fuel line junctions, offering reliability, serviceability, and a clean appearance in visible engine bays.