304-401 AMC Exhaust Gskt 1970-1979

The 304-401 AMC Exhaust Gskt 1970-1979 is a precision-engineered exhaust header gasket pair designed specifically for AMC V8 engines across the 1970–1979 model years. This FEL-PRO gasket addresses a critical sealing application where the exhaust manifold meets the cylinder head, preventing exhaust leaks that compromise engine efficiency and increase emissions. Whether you're performing a complete engine rebuild, replacing a failed gasket, or restoring a classic AMC muscle car, this OEM-equivalent gasket ensures a factory-quality seal at the most demanding junction in your exhaust system.

Constructed with a steel core laminate design, the 304-401 AMC Exhaust Gskt features a dog leg port configuration with port dimensions of 1.300 x 1.800 inches, engineered to match the unique combustion chamber exit geometry of AMC V8 heads. The steel core laminate construction provides superior durability and heat resistance compared to simple composite gaskets, preventing blow-out under sustained high-temperature exhaust cycles. FEL-PRO's precision manufacturing ensures consistent gasket thickness and material density, which is critical for achieving a reliable seal that withstands thermal cycling, vibration, and exhaust system pressure without degradation. This pair gasket set means you receive both left and right manifold seals in a single purchase, streamlining your parts acquisition.

Restoration enthusiasts, engine rebuilders, and DIY mechanics working on Javelin, Rebel, Ambassador, and other AMC V8-equipped vehicles will benefit most from this purpose-built gasket. Installation requires only basic hand tools and careful torque sequencing of the manifold bolts to specification—a straightforward task that prevents costly exhaust leaks and rough idle issues. Pair this gasket with quality header bolts and high-temperature anti-seize compound for optimal results. FEL-PRO's reputation for reliability means this gasket will maintain its seal for years of reliable operation, whether your AMC powers a weekend cruiser or a fully restored showpiece.