1in Alum. Carb. Spacer

The 1 inch aluminum carburetor spacer from MOROSO is an essential intake manifold component designed for carbureted engines requiring precise air-fuel mixture optimization and enhanced cooling airflow. This carburetor spacer sits between the carb and manifold, serving dual purposes: lowering the carburetor position for better hood clearance and creating a thermal barrier that reduces heat soak into the fuel bowl. Built for square-bore four-barrel carburetors, this spacer is ideal for street engines, vintage restorations, and performance builds where fuel atomization and stable idle characteristics matter.

Constructed from lightweight aluminum in a natural finish, the 1 inch aluminum carburetor spacer measures 6.85 x 6.95 inches across the flange and features an open design that maximizes airflow while maintaining structural rigidity. The 1-inch thickness provides adequate volume beneath the carb to act as a heat shield, slowing fuel evaporation during extended idling or stop-and-go driving. MOROSO's manufacturing standards ensure proper bolt-hole alignment and a sealed gasket interface, critical for preventing vacuum leaks and fuel seepage that degrade engine performance and reliability.

Engine builders and restoration specialists choose this carburetor spacer when swapping carburetors onto existing manifolds or lowering the intake profile for custom hood fitment on muscle cars, street rods, and classic trucks. Installation requires standard intake gaskets (sold separately) above and below the spacer, along with stock carburetor mounting hardware. Weighing just 1.65 pounds, it adds negligible mass while delivering measurable improvements in cold-start behavior and cruise-RPM stability on naturally-aspirated engines running between 600 and 7000 RPM.