SB Chevy Exhaust Gaskets Round Port

The SB Chevy Exhaust Gaskets Round Port (FEL-PRO 1408) are essential sealed components designed for small-block Chevrolet exhaust manifold and header applications. These gaskets sit between the cylinder head and exhaust outlet, preventing hot exhaust gases from escaping around the joint and ensuring proper manifold seal integrity. Whether you're rebuilding a classic carbureted engine, upgrading to a performance header system, or replacing worn factory gaskets on a street or race engine, these round-port gaskets deliver reliable containment across a wide temperature range.

Constructed with a steel-core laminate design, the SB Chevy Exhaust Gaskets Round Port feature a 2.190-inch round port opening optimized for small-block Chevy cylinder head casting profiles. The laminated steel core provides superior heat resistance and durability compared to compressed asbestos alternatives, resisting thermal cycling and vibration without degradation. This gasket pair accommodates both standard and high-flow header designs, maintaining a consistent seal even under sustained boost or high-RPM conditions. The robust laminate construction prevents gasket creep and blowout, critical when managing exhaust scavenging efficiency and preventing manifold heat transfer issues.

Technicians and engine builders trust FEL-PRO gaskets for OEM-equivalent quality and fitment on both original small-block Chevrolet engines and modern engine swaps using SBC platforms. Installation is straightforward—apply a light coat of gasket sealant, position the pair between the manifold and cylinder head, and torque fasteners in a cross pattern to specification. Compatible with cast-iron factory manifolds, street headers, and performance tube designs, these gaskets are a must-have consumable for any exhaust system replacement, rebuild, or modification on small-block Chevy applications.