• Manufactured from high-temperature steel core/graphite faced exhaust material.
• Expanded steel core provides stability and maximum torque retention to eliminate gasket failure.
• Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head.
• Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load.
• Can be trimmed if necessary for modified port applications.
• For OE replacement, high performance street, drag race and oval track use.
Header Gaskets - Ultra-Seal - 400, 455 Pontiac V8 1968-74 - Ram Air IV Heads
Part #: 7523MRG- Length: 0.3"
- Width: 4.3"
- Height: 25.5"
- Emissions Code: 5
- Prop 65: No