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Mr. Gasket 5921 - Mr. Gasket Ultra-Seal Exhaust Gaskets

Mr. Gasket 5921 - Mr. Gasket Ultra-Seal Exhaust Gaskets
Mr. Gasket 5921 - Mr. Gasket Ultra-Seal Exhaust Gaskets

JEGS Part Number: 720-5921

Exhaust Header Gasket
  • Ultra-Seal Material
  • 1963-79 Pontiac 326-455 (Exc. Ram Air, H.O. & Super Duty)
  • "D" Shape Port: 1.55'' x 2.00''
    • $22.41 Ships

    Mr. Gasket 5921 Details


  • Graphite-Impregnated Facing
  • Steel Expanded Metal Core
  • Superior Tensile Strength
  • Resists Cracking
  • Withstands Intense Heat
  • Resists Deteriorating
  • Anti-Stick Properties
  • Easy Removal For Disassembly

  • Mr. Gasket Ultra-Seal Exhaust Gaskets

    Premium Ultra-Seal Exhaust Gaskets have the ability to conform to warped flanges for a tight seal and superior tensile strength to resist cracking. Their graphite facing withstands heat and allows easy removal.

  • 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 racing, and circle track

  • Items similar to Mr. Gasket 5921

    Mr. Gasket 5921

    Port Height (in.)
    Port Style
    Port Width (in.)
    Sold as a pair
    Gasket Material
    Steel core laminate
    Manufacturer's Part Number:
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