Header Gaskets - Chevy LS1/LS2/LS3/LS6

Mr. Gasket, Multi-Layered Steel Material, Round Ports

PART# 4805G

Suggested Retail: $32.66
Your Price: $29.39
In Stock Free Shipping on orders over $100*
Does not Fit LS7 & LS9


- Multi-Layered Steel (MLS) exhaust and header collector gaskets are designed for extreme cylinder pressures produced by high horsepower-high compression turbo-charged, supercharged and nitrous oxide injected engines. - Manufactured from three stainless steel layers, they resist corrosion, will not burn through or push and maintain maximum fastener torque retention. - Stress formed inner and outer layer embossments act like springs that rebound under exhaust flange clamp load, creating force to seal extreme exhaust pressures. Total gasket thickness .075"


  • Multi Layer Stainless Steel 3-Layers
  • Round Port 1.75" Diameter
  • Will not deteriorate from scrubbing action caused by different expansion rates in aluminum and steel materials.
  • Thickness .075"


BrandMr. Gasket
Emission Code1
EngineGM LS1/LS2/LS6
Port ShapeRound
Port Size1.75"
Product TypeExhaust Gaskets
Type of ComponentExhaust Gaskets
WarrantyLimited 90 Day Warranty

Tech Resources

Does not Fit LS7 & LS9


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
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      *Free Shipping & Handling only offered to the continental US on orders over $100.

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