Mr Header Gaskets Round Ports 1.85 Inch x 1.90 Inch (65-87 El Camino; 71-77 Sprint; 78-87 Caballero)Find parts that fit my vehicle

Performance Header Gaskets. The Mr. Gasket 1965-1990 Big Block Header Gaskets provide a reliable seal between the engine block and exhaust headers, preventing exhaust leaks and maintaining optimal engine performance. Designed for use on Chevrolet and GMC 396-454 Big Block engines with round ports, these gaskets are essential for high-performance street applications, drag racing, and oval track use, ensuring durability and enhanced torque retention.

Construction and Appearance. Constructed from a heavy-duty, high-temperature acrylic blend exhaust material, these gaskets measure 0.062 inches thick and are precision die-cut for an exact fit. The material resists high temperatures and offers excellent sealing capabilities, providing durability under extreme operating conditions. The gasket surface has a consistent texture suitable for effective sealing.

Installation. Installation is straightforward, with no special drilling required; the die-cut design ensures easy alignment and fitment. It can be trimmed if necessary for modified port applications, allowing flexibility without compromising performance.

Warranty. This product is backed by a manufacturer’s limited 90-day warranty.

Application. Fits 65-87 El Camino, 71-77 Sprint, 78-87 Caballero.

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