Carb Insert 2in Tall 1.200in Diameter

The Carb Insert 2in Tall 1.200in Diameter from WEHRS MACHINE is a precision-engineered restrictor plate insert designed for serious engine builders and automotive enthusiasts seeking to control fuel mixture flow and regulate airflow through the carburetor system. This aluminum spacer insert sits between the carburetor and intake manifold, making it an essential component for tuning carburetor-fed engines to meet specific fuel and air delivery requirements. Whether you're optimizing peak horsepower, achieving consistent jetting across varying conditions, or building a street-legal engine that meets emissions standards, this insert provides measurable control over combustion chamber efficiency.

Machined from natural aluminum, the Carb Insert 2in Tall 1.200in Diameter features a precisely bored 1.200-inch diameter opening that restricts intake charge velocity and optimizes venturi action within the carburetor bore. The 2-inch height creates a deliberate separation between the carb flange and manifold inlet, allowing tuners to fine-tune air velocity and fuel atomization without replacing the entire carburetor assembly. This approach proves invaluable when testing jetting combinations or when secondary barrels require metering adjustments. The aluminum construction delivers lightweight performance while maintaining dimensional stability across engine temperature swings, and the natural finish resists corrosion during street or strip use.

Mechanics and engine builders rely on the WEHRS MACHINE Spacer System for carburetors ranging from single-barrel street engines to dual-quad competition setups. This insert works with virtually any traditional flange-mount carburetor, making it a go-to choice for muscle car restorations, vintage hot rods, and classic truck builds. Installation is straightforward—simply sandwich the insert between the carburetor and manifold gasket, secure with your existing bolts, and tune from there. The compact 4 x 2 x 4 inch footprint and 0.88-pound weight mean zero performance penalty or engine bay clearance issues.