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Earls Header Gaskets - Pressure Master - 396-454 Chevrolet Big Block Mark IV 1965-90

Limited To Stock On Hand - Replacement Insert Set, Chevy Big Block, (Uncut Centers)


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$21.62   Suggested Retail
$2.16   Clearance Price
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Replacement Insert Set, Chevy Big Block, (Uncut Centers) - Designed and manufactured for Earl's by Parker-Hannifin Corporation, these seals are the first High Performance Seals developed to solve automotive sealing problems using Aerospace Technology.


  • Uses Aerospace Technology
  • Reusable/Adaptable
  • Graphite Foil Sealing Inserts
  • Virtually Leakproof
  • Seals Up To 1200% Better
  • Superior Torque Retention
  • Longer Lasting Pre-Load
  • 90% Break Loose Torque


Collector Gaskets IncludedNo
Emission Code4
EngineBig Block Chevy
Gasket LinePressure Master
MaterialGraphite Foil Inserts
Port ShapeUncut
Port SizeUncut
Product TypeHeader Gaskets
Part Number29D04B2ERL



This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Tech Resources

This part is limited to stock on hand. This means once current inventory is sold out, it will not be back ordered nor will it be built again. In the rare case where a product is oversold, your order may be partially filled or canceled and payment will be refunded.
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