1in Street Sweeper Carb. Spacer -Aluminum

The 1in Street Sweeper Carb. Spacer from HIGH VELOCITY HEADS is a precision-engineered aluminum carburetor spacer designed for serious engine builders and performance enthusiasts seeking refined intake manifold tuning. This 1-inch thick spacer sits between the carburetor and intake manifold, functioning as both a physical separator and a tuning component that optimizes fuel atomization and air velocity through the intake runners. Street Sweeper spacers have become essential for builders targeting improved throttle response, better fuel distribution, and enhanced mid-range torque without sacrificing driveability on pump fuel.

Constructed from lightweight aluminum and polished to a show-quality finish, this spacer features a divided wall internal design that controls fuel slosh and promotes consistent air-fuel mixing across all four primary bores—critical for square bore carburetor applications. The divided wall geometry creates distinct fuel charge paths, allowing fine-tuned inlet velocity while reducing turbulence that can cause rich or lean spots in the cylinder head. At 1.79 lbs and compact dimensions (6.5 x 2.2 x 8.4 inches), the spacer adds minimal heat mass while the polished aluminum surface reflects radiant engine heat, keeping intake charge temperatures lower and denser for better volumetric efficiency.

This spacer is ideal for street-driven muscle cars, hot rods, and performance trucks running square bore four-barrel carburetors where subtle but measurable carburetor response improvements matter. Mechanics and engine builders commonly pair this with quality gasket sets and quality intake manifolds to ensure proper sealing and maximum isolation of the carburetor from manifold heat. Installation is straightforward—simply sandwich the spacer between the carburetor base and manifold studs using appropriate hardware, ensuring all gasket surfaces are clean and dry. Verify carburetor bolt pattern compatibility with your square bore manifold before ordering.