This insulator spacer (part number 480080) is a crucial component for anyone running Weber 48 DCOE or equivalent carburetors. Installed between the carburetor and the intake manifold, the spacer is manufactured from 5 mm thick bakelite. Bakelite boasts exceptional thermal insulation properties, effectively blocking engine heat from transferring through the manifold into the carburetor body.

By keeping the carburetor cool, you prevent the fuel inside the float chamber from boiling (a condition known as vapor lock). Furthermore, cooler fuel is denser, which provides a more consistent fuel mixture, ultimately leading to better performance and reliability during hard driving or racing.

Technical Specifications:

• Diameter: 48 mm (Fitted for 48 DCOE).
• Thickness: 5 mm.
• Material: Bakelite with integrated paper gaskets on both surfaces.
• Packaging: Sold individually (2 pieces are required for one twin-barrel carburetor).

Pro Tip: Always ensure that the mating surfaces on both the intake manifold and the carburetor are perfectly clean before installing the spacer to guarantee a leak-free seal.