289-351W Ford 5L Square Port Header Gaskets

The HEDMAN 289-351W Ford 5L Square Port Header Gaskets are precision-engineered sealing components designed for classic and modified Ford engines running square-port cylinder head configurations. These gaskets seal the critical interface between your headers and cylinder heads, preventing exhaust leaks that can negatively impact performance. Whether you're restoring a vintage muscle car or building a performance street engine, quality header gaskets are essential for reliable combustion seal integrity.

HEDMAN's design accommodates the specific port geometry of 289 and 351W Ford engines with square-port cylinder head designs, ensuring proper gasket seating and clamping load distribution across all ports. The gaskets are manufactured to exact OEM tolerances, which helps maintain even clamp load and prevent hot spots where exhaust gas can breach the seal. Their precision manufacturing minimizes gasket thickness variation, which is critical for performance applications.

Carburetor-era 289 builds, 351W stroker engines, and period-correct restorations benefit most from HEDMAN gaskets, which deliver the sealing consistency that builders and enthusiasts demand. While these gaskets are designed for compatibility with square-port configurations, it's important to verify fitment with specific header designs. Installation is straightforward during header assembly, making them a practical choice for both novice and experienced mechanics.