Description
A quality exhaust gasket is critical to maintaining a proper seal between your header and cylinder head—any leak compromises performance, increases emissions, and can cause heat damage to surrounding components. Mr. Gasket’s Ultra-Seal gaskets use a steel core laminate construction designed to withstand the thermal cycling and pressure cycles that stock gaskets simply can’t handle. If you’re running headers on your small block Chevy or planning a build, these gaskets ensure a reliable, long-lasting seal.
- Exhaust manifold/header gasket
- Ultra-Seal construction
- Steel core laminate
- 1.450 x 1.550″ square port
- Small block Chevy fitment
- Pair (two gaskets)
- Bolt-on installation






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