The 10-Pack Square Bore 4BBL Carburetor Mounting Gasket Set provides dependable sealing and alignment for a wide range of small block and big block engine applications. Each gasket is designed to deliver consistent performance in demanding conditions, making it an ideal solution for professional mechanics and automotive enthusiasts performing carburetor rebuilds or upgrades.
These gaskets are made from a high-heat composite material that ensures durability and compression integrity when installed between the carburetor base and intake manifold. With a uniform thickness, they help maintain proper airflow balance and fitment on engines equipped with 4150, 4160, or 1406, 1405, and 1409 carburetors.
Engineered for versatility, compatible engines include classic displacements such as 265, 283, 302, 327, 350, 383, 400, 427, 454, 460, and more—covering both vintage and performance powerplants commonly used in hot rods, muscle cars, and street restorations.
Each gasket is precisely cut for square-bore 4-barrel configurations to ensure accurate alignment of ports and mounting holes. The material maintains its integrity under repeated thermal cycles and pressure fluctuations, making it ideal for both daily drivers and performance-tuned vehicles.
This 10-piece package offers excellent value and convenience, enabling multiple installations or replacements during tuning, repair, or testing. Whether used in a professional garage or home workshop, the 4BBL Carburetor Base Gasket Kit provides reliable sealing performance that supports optimal engine response, fuel efficiency, and overall mechanical stability.