Patriot Exhaust 66013 Seal-4-Good Big Block Chevy Square Port Header Gaskets

Seal exhaust header and manifold connections with Patriot Exhaust 66013 Seal-4-Good gaskets, designed for Big Block Chevy applications with square exhaust ports. This matched pair helps create a dependable seal between the cylinder head and header or manifold, supporting proper exhaust flow and helping reduce the risk of leaks at the connection point.
Constructed from multi-layered aluminum, these gaskets provide a durable sealing solution for performance street vehicles, race applications, and custom exhaust installations. The 2.125-inch square-port design is suited for compatible Big Block Chevy cylinder heads and headers, while the layered construction helps the gasket conform to mating surfaces during installation.
Feature: Brand - Patriot Exhaust
Feature: Part Number - 66013
Feature: Application - Big Block Chevy
Feature: Gasket Type - Exhaust header and manifold gasket
Feature: Port Design - Square port
Feature: Port Size - 2.125 inches
Feature: Material - Multi-layered aluminum
Feature: Quantity - Pair
Confirm header, cylinder head, and port compatibility before installation. For best results, clean all mating surfaces, inspect the fasteners and flange condition, and follow the header manufacturer's recommended installation procedure. Patriot Exhaust 66013 gaskets are a practical replacement choice when servicing or upgrading a compatible Big Block Chevy exhaust system.

Features:

• Brand: Patriot Exhaust

• Part Number: 66013

• Application: Big Block Chevy

• Type: Exhaust header and manifold gasket

• Port Design: Square port

• Port Size: 2.125 inches

• Material: Multi-layered aluminum

• Quantity: Pair