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Mr. Gasket

Mr. Gasket MLS Header Gaskets

Fits GM 2014-2020 LT1/LT4 Gen V Small Block with Oval Ports

Part # 4808G Be the first to write a review
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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.


  • Fits 2014 & up GM Gen V LT1/LT4 Engines
  • Multi Layer Stainless Steel
  • Oval Port 1.83" x 2.24"
  • Will not deteriorate from scrubbing action caused by different expansion rates in aluminum and steel materials.
  • Thickness .072"
  • 3-Layer Gasket Conforms to Header Flanges Better Than OEM 2-Layer Design

About Mr. Gasket

Using his own '57 Chevy as a rolling testbed, drag racer Joe Hrudka launched the most famous gasket company in the world more than half a century ago. Mr. Gasket is the go-to gasket source for racers with gaskets and fasteners that seal perfectly every time.

Brand Mr. Gasket
Collector Gaskets IncludedNo
Emission Code5
EngineGM Small Block Gen V (LT1/LT4 Based)
Gasket LineMLS
PackagingRetail - Clamshell
Port ShapeOval
Port Size1.83" x 2.24"
Product TypeHeader Gaskets
Quantity Per Pkg.2
WarrantyLimited 90 Day Warranty
Part Number4808G

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Limited 90 Day Warranty: See Details

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