Header Gaskets - Ferroglass Non-Asbestos - 351C, 351M, 400 Ford Cleveland/Modified

Flowtech, Exhaust Headers gaskets, Dead Soft P73 Ferroglass Non-Asbestos header gaskets for Ford 351C, 351M, and 400 V8 engines

PART# 99260FLT

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Flowtech replacement headers Gaskets for Ford 351C, 351M, and 400M headers. Kit consists of (2) header flange gaskets and (4) header 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


Collector Gaskets IncludedYes
Emission Code3
EngineFord Cleveland
Ford Modified
Gasket LineP73 Ferroglass Non-Asbestos
MaterialP73 Ferroglass Non-Asbestos
Port ShapeOval
Port Size1.44" x 1.89"
Product TypeHeader Gaskets
Type of ComponentExhaust Gaskets
Part Number99260FLT


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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        *Free Shipping & Handling only offered to the contiguous US on orders over $100.

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