Exhaust Manifold

Exhaust Manifold Points : Exhaust Manifold An exhaust manifold bolts to the cylinder head to enclose the exhaust port openings. The manifold is usually made is usually made of cast iron. It is sometimes made of stainless steel or lightweight steel tubing. The cylinder head mating surface is machined smooth and flat. An exhaust manifold gasket is commonly used between the cylinder head and manifold to help prevent leakage. The outlet end of the exhaust manifold has a single round opening with provisions for stud bolts or cap screws. A gasket or 0-ring (doughnut) seals the connection between the exhaust manifold outlet and header pipe; to prevent leakage.