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Mr. Gasket

Mr. Gasket Premium Engine Overhaul Kit with MLS Head Gaskets

Fits 1999- GM LS-Series Engines

Part # 61001G Be the first to write a review
Estimated shipping date: 12/21/2021
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Original equipment style High Quality gaskets For original equipment replacement, high performance street, drag race and oval track. Includes all gaskets for complete engine rebuild. Fits engines with Head Gasket Bore Size up to 4.080 inch, 10-Bolt Valley Cover, LS1/LS6 Cathedral Port Intake Seals, and Wet Sump Oil Pan.


  • Fits GM 5.7/6.0L Gen III LS Engines up to 4.00" Bore Size with Wet Sump Oil Pan, 10-Bolt Valley Cover & Cathedral Intake Ports
  • High Quality OEM Style Gaskets - MLS, Rubber O-ring or Molded Rubber over Aluminum Carrier
  • Complete Kit to Rebuild Your Entire Engine
  • For Original Replacement, High Performance Street, Drag Race and Oval Track

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
Emission Code5
EngineGM Small Block Gen III/IV (LS Based)
Exhaust Port ShapeRound
Exhaust Port Size1.75"
Head Gasket Bore4.080"
Head Gasket Compressed Thickness.051"
Head Gasket MaterialMLS - Multi-Layer Steel
Header Gasket MaterialMLS
Header Gasket Thickness.072"
Intake Manifold Gasket MaterialMolded O-Ring
Intake Manifold Gasket ThicknessStandard OEM
Intake Port ShapeCathedral
Intake Port SizeStock
Oil Pan Gasket MaterialMolded Rubber w/ Aluminum Carrier
One Piece Oil Pan GasketYes
Product TypeGasket Kits
Rear Main Seal StyleOne Piece
Valve Cover Gasket MaterialMolded O-Ring
Valve Cover Gasket ThicknessStandard OEM
WarrantyLimited 90 Day
Part Number61001G

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: See Details

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