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

Item EK-55-878107-1
38 Reviews of Mr. Gasket
Our Price

$46.09

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      Product Information

      Features, Description, Q&A

      Features

      • Manufactured from high-temperature steel core with graphite facing exhaust material
      • Expanded steel core provides stability and maximum torque retention to prevent gasket failure
      • Graphite facing offers excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head
      • Seals minor surface irregularities for a tight fit
      • High recovery material keeps header or manifold flange sealed even if clamp load is lost
      • Can be trimmed if necessary for modified port applications
      • Suitable for original equipment replacement, high performance street, drag race, and oval track use
      • Collector gaskets not included
      • Emission code: 5 (legal for emissions-controlled, uncontrolled, and racing vehicles)
      • Engine: Chevrolet Big Block Mark IV
      • Gasket line and material: Ultra-Seal
      • Part type: Exhaust manifold gasket set
      • Port shape: Round
      • Port size: 1.92 inch
      • Product type: Header gaskets
      • Subcategory: Gaskets and sealing systems
      • Thickness: 0.062 inch
      • Weight: 0.44 lb
      • Warranty: Manufacturer's limited 90-day warranty
      • Fits 1965-1987 El Camino; 1971-1977 Sprint; 1978-1987 Caballero

      Description

      Premium Performance Gaskets. The Mr. Gasket 1965-1987 Big Block header gaskets provide a reliable, heat-resistant seal between exhaust headers and cylinder heads. They prevent exhaust leaks, reduce noise, and enhance engine performance for street and race applications.

      Construction and Appearance. These gaskets feature an expanded high-temperature steel core for enhanced stability and torque retention, combined with a graphite facing that offers excellent heat resistance and thermal conductivity. The graphite facing transfers heat away from the cylinder head and seals minor surface irregularities to ensure a tight, durable fit.

      Installation. Installation is straightforward and typically requires no additional modifications such as drilling. The gaskets can be trimmed for custom port applications if necessary, providing versatility for various header designs.

      Warranty. These gaskets include a manufacturer's limited 90-day warranty covering defects in materials and workmanship.

      Application. Specifically designed to fit 1965-1987 El Camino, 1971-1977 Sprint, and 1978-1987 Caballero models with Chevrolet Big Block engines, ensuring compatibility with these vehicles and their exhaust systems.

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.5

      Reviews of Mr. Gasket Classic Exhaust Products (38)

      Questions & Answers

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