Mastodon Ford 351C Valve Cover Gaskets, Rubber w/ Steel Shim Core

Reusable Ford 351 Cleveland valve cover gaskets with rubber sealing surface and steel shim core. The Cleveland uses a different valve cover footprint to the Windsor — these are sized correctly for the 351C / 351M / 400M engine family. Steel shim core retains the gasket shape across multiple installs and delivers consistent torque retention.

Sold as a pair (driver + passenger).

Specifications:

• Application: Ford 351C (Cleveland), 351M, 400M
• Material: Rubber with steel shim core
• Quantity: Pair
• Reusable: Yes