1956-61 Corvette OEM Dual Quad 2×4 Carburetors Unrestored OEM Dual Quad Aluminum Intake Manifold With 2×4 Carb Set-up. A High Performance Factory Option Offered On Corvettes From 1956 to 1961. May Be Used On Other Chevy 283, 327, 350 Small Block Motors For That Vintage Look And Performance. Dual 2×4 Barrel Carter Carburetors. Carburetor Tag 2626S. Original GM Manifold Casting #3739853. Dual Low Profile Air Cleaners. Oil Filler Tube With Breather Cap. Brass Coolant Fitting. Carburetors have been in storage for many years and will need service prior to use. This set up will fit just about any small block Chevy engine for that “Vintage” look.