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Header Gaskets - Ultra-Seal - 396-454 Chevrolet Big Block Mark IV 1965-90

Mr. Gasket, Ultra-Seal Material, Square Port, 1.85" x 1.90"

PART# 5910

$25.64   Suggested Retail
$23.08   Your Price
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Overview

• 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 race and oval track use.

Features:

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

Specs

BrandMr. Gasket
Collector Gaskets IncludedNo
Emission Code3
EngineChevrolet Big Block Mark IV
FinishFlat
Gasket LineUltra-Seal
MaterialUltra-seal
Port ShapeSquare
Port Size1.85" x 1.90"
Product TypeHeader Gaskets
Thickness.062"
WarrantyLimited 90 Day Warranty
Weight0.3800
Part Number5910

Emissions

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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