Valve Cover Gasket Set SBF 351C-400 .250 Thick

The Valve Cover Gasket Set SBF 351C-400 .250 Thick from MAHLE ORIGINAL/CLEVITE is a precision-engineered seal designed specifically for small-block Ford (SBF) engine families, particularly the 351 Cleveland (351C) and 400 cubic inch variants. This gasket set addresses one of the most common leak points in classic and high-performance Ford builds—the valve cover interface where crankcase vapors and oil can weep past worn factory seals.

Whether you're rebuilding a vintage performance engine, restoring a classic muscle car, or maintaining a race-prepped powerplant, a quality valve cover gasket set is essential for long-term reliability and oil containment. The .250-inch thickness specification is critical for proper compression and sealing geometry on these classic Ford blocks. MAHLE ORIGINAL/CLEVITE gaskets are manufactured from premium elastomer compounds that resist thermal cycling, oil degradation, and the extreme temperature swings characteristic of small-block performance engines.

Mechanics and engine builders working on 351C and 400 cubic inch blocks will find this gasket set indispensable during engine assembly, top-end refreshes, or preventative maintenance. This set includes all necessary gasket components for a complete valve cover seal replacement, ensuring consistent material quality across every sealing surface. The robust construction withstands both street-driven cruising temperatures and sustained high-RPM track use without degradation or creep.