High-Quality 2bbl to 4bbl Carburetor Adapter Kit - Aluminum 4-Bolt Conversion This premium carburetor adapter kit provides a reliable solution for converting between 2-barrel and 4-barrel carburetor configurations. Made from high-grade die-cast aluminum, this 1-inch thick adapter is built to last with excellent durability and heat resistance. Product Specifications: Material: High-quality aluminum alloy Thickness: 1" (without gaskets) Carburetor Barrels: 2-Barrel Carburetor Flange Type: 2-Barrel 4-Bolt Includes: Gaskets, studs, nuts, and washers Part Number: 1933 .