Exhaust Gasket Set Dodge 4.7L

The Exhaust Gasket Set Dodge 4.7L by JBA Performance Exhaust is a precision-engineered sealing solution designed for high-performance headers and manifolds on small-block Mopar engines. As a mechanic who has rebuilt countless 4.7L powerplants, you know that exhaust leaks rob horsepower, increase emissions, and create diagnostic nightmares. This gasket set eliminates those problems at the source—the critical seal between the header primaries and cylinder head ports where combustion gases escape under extreme pressure and temperature cycling.

Built with a steel-core laminate construction, each 1.668-inch round port gasket withstands the thermal shock and vibration that destroy cheaper composite gaskets in weeks. The laminated design compresses consistently without permanent set loss, maintaining a reliable seal across multiple heat cycles—critical when you're running boost, nitrous, or aggressive cam profiles that spike exhaust temperatures well beyond OEM levels. Supplied as a pair, this set covers both banks of your 4.7L, ensuring balanced scavenging and eliminating cross-firing that compromise dyno numbers. The 0.19 lb weight reflects the material density required for durability; you're not getting plastic here, but engineered steel laminate that meets JBA's reputation for serious performance hardware.

Install this gasket set when upgrading to any aftermarket header or manifold on your Dodge 4.7L—whether you're building a street 4x4, a restomod truck, or a dedicated race engine. The round-port design matches OEM Mopar and most JBA header flanges, ensuring a clean interface without port mismatch that causes leaks and flow loss. Proper installation with fresh fasteners, correct torque sequence, and a thin layer of high-temp gasket sealer will guarantee years of leak-free operation, even under sustained high-EGT conditions. This is the gasket set that separates amateur builds from professional results.