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Header Gaskets - Pressure Master - 262-400 Chevrolet Small Block Gen I 1955-91

Gasket Set, Chevy Small Block 265-400 (1.36" x 1.36" Ports) Pair


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Gasket Set, Chevy Small Block 265-400 (1.36" x 1.36" Ports) Pair - 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
EngineChevrolet Small Block Gen I
Gasket LinePressure Master
MaterialGraphite Foil Inserts
Port ShapeSquare
Port Size1.36" x 1.36"
Product TypeHeader Gaskets
Part Number29DB3BERL



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

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