351C-400 Ford Exhaust Gs 1970-79 W/2 BBL HEADS

The FEL-PRO 351C-400 Ford Exhaust Gasket Set for 1970–1979 Ford 351C engines with 2-barrel cylinder heads is a precision-engineered seal designed to prevent exhaust leakage at the header-to-cylinder-head interface. This exhaust manifold gasket pair features a steel core laminate construction with 1.560 x 1.980-inch oval port openings, providing reliable sealing for both original and modified Cleveland-based engine configurations.

Steel core laminate gaskets maintain dimensional stability under the extreme thermal cycling that occurs in exhaust systems, where header temperatures routinely exceed 1,200°F. The oval port design matches the combustion chamber profile of Ford's 351C family, ensuring full contact across the sealing surface and minimizing hot spots that accelerate gasket degradation. FEL-PRO's manufacturing process produces gaskets with precise thickness and surface finish, critical variables that determine how effectively the gasket conforms to port irregularities on both the cylinder head and exhaust manifold.

This gasket set addresses a common failure point in vintage and modified 351C builds. Leaking exhaust gaskets allow combustion gases to escape before reaching the exhaust system, robbing power, creating vacuum leaks, and allowing water intrusion that corrodes internal engine components. The pair format ensures symmetrical sealing across both cylinder banks, which is essential for balanced exhaust scavenging and consistent engine tuning.

Whether restoring a stock 1970s Ford muscle car or building a modified 351C street engine, proper exhaust gasket selection prevents recurring leaks that plague poorly sealed headers. FEL-PRO's reputation in the automotive gasket market reflects decades of OEM and aftermarket application development. Part number 1430 is engineered specifically for the 351C architecture, making it a direct fit for original and modern header designs targeting this engine family.