Header Gaskets - Ferroglass Non-Asbestos - 262-400 Chevrolet Small Block Gen I 1955-91

Flowtech Dead Soft P73 Ferroglass Non-Asbestos Material for 1955-1991 Gen 1 Small Black Chevy 262-400 V8 Engines

PART# 99161FLT

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Replacement Header Gaskets for 283-400 Small Block Chevy full length headers. Kit consists of (2) Header flange gaskets and (2) 3" collector gaskets and (2) 2.5" collector gaskets


  • Engineered for a precise, easy fit
  • Manufactured of P73 Ferroglass non-asbestos facing material for long life
  • Mechanically clinched to a perforated metal core for superior sealing and strength
  • The inorganic filler system provides strong bolt torque retention properties
  • Includes (2) Sets of Collector Gaskets 2-1/2" & 3.0"


Collector Gaskets IncludedYes
Emission Code3
EngineChevrolet Small Block Gen I
Gasket LineP73 Ferroglass Non-Asbestos
MaterialP73 Ferroglass Non-Asbestos
Port ShapeOval
Port Size1.5" x 1.82"
Product TypeHeader Gaskets
Type of ComponentExhaust Gaskets
Part Number99161FLT


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.


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      Some parts are not legal for use in California or other states with similar regulations.