Description
A proper seal at your exhaust manifold or header is non-negotiable for peak engine performance and longevity. Blow-by and exhaust leaks will rob you of horsepower, increase underhood temperatures, and cause manifold fasteners to loosen over time. Mr. Gasket’s Ultra-Seal gaskets are engineered with a steel core laminate construction to withstand extreme heat cycles and maintain a reliable seal across repeated heat stress.
- Exhaust manifold gasket
- Ultra-Seal composition
- 1.450 x 1.480″ square port
- Steel core laminate
- Small Block Chevy
- Pair (two gaskets)
- Bolt-on installation
- MPN: 5900






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