Patriot Exhaust 66051 Seal-4-Good Exhaust Header Gaskets for Ford Cleveland and Modified Engines

Protect your exhaust system with Patriot Exhaust Seal-4-Good Header Gaskets, part number 66051. Designed for Ford Cleveland and Modified engines, these exhaust header and manifold gaskets provide a reliable seal between the cylinder head and header flange. The oval-port design is suited for compatible Ford 351C 2-barrel and 351M–400M applications, helping reduce the risk of exhaust leaks and supporting consistent exhaust system performance.
Constructed from multi-layered aluminum, the Patriot Exhaust 66051 gaskets are built to withstand the heat and pressure associated with high-temperature exhaust environments. The layered construction helps promote sealing conformity across the mating surfaces while offering durability for street, performance, and replacement installations. Their Seal-4-Good design makes them a practical choice when replacing worn, damaged, or compressed header gaskets.
This package includes a pair of exhaust header gaskets for convenient installation on both sides of the engine. Verify header flange configuration, cylinder-head compatibility, and port shape before installation. For best results, use clean, flat mating surfaces and follow the header manufacturer’s recommended tightening sequence and torque specifications. Patriot Exhaust combines application-focused design with dependable materials to deliver a functional sealing solution for compatible Ford Cleveland and Modified engine builds.

Features:

• Brand: Patriot Exhaust

• Part Number: 66051

• Product Type: Exhaust header and manifold gasket set

• Series: Seal-4-Good

• Port Shape: Oval

• Port Size: 1.940 x 1.650 inches

• Material: Multi-layered aluminum

• Application: Ford Cleveland and Modified engines

• Compatibility: Ford 351C 2-barrel and 351M–400M applications

• Quantity: Pair