351C-400 Ford Valve Cover 3/16in Thick Rubbe

The FEL-PRO 351C-400 Ford valve cover gasket pair is engineered for serious engine builders and mechanics working with Ford Cleveland and modified big-block platforms. These gaskets form the critical seal between your valve covers and cylinder head, preventing oil weep and combustion chamber contamination. Whether you're restoring a classic 351C, building a high-performance 400, or fabricating a custom engine, this pair delivers the durability required for street and track applications.

Constructed from 3/16-inch thick cork and rubber composite material, the 351C-400 Ford valve cover gasket pair offers superior compression set resistance compared to thin single-layer designs. The thicker cross-section maintains its sealing integrity under thermal cycling, vibration, and varying cylinder head clamp pressures—common stressors in modified engines running elevated compression ratios or boost. FEL-PRO's proven formulation resists oil degradation and heat deformation, extending service life and reducing repeat gasket failures that plague inferior alternatives.

Mechanics and enthusiasts restoring or modifying 351C Cleveland and 400 cubic-inch Ford engines choose this pair for its fit accuracy and long-term reliability. Installation is straightforward on factory and custom valve cover flanges; simply install with moderate, even clamp pressure to avoid over-torque damage. This pair covers both driver and passenger side valve covers, making it ideal for complete engine rebuilds, performance upgrades, or preventive maintenance on vintage Ford powerplants.