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Mr. Gasket

Mr. Gasket MLS Head Gasket

Fits 1970-1978 360, 390, 401 AMC V8 - 4.250 Inch Gasket Bore

Part # 3240G Be the first to write a review
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$100.95
Suggested Retail
$113.00
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Our unique Multi-Layered steel head gasket embossment formation process optimizes the embossment radius, reduces stress points, enhances gasket conformability, and provides uniform clamp load distribution. This all results in superior surface contact between block and cylinder head. All head gasket layers/spacers go through an additional process to significantly reduce forming induced stress. Advantages are reduced brittleness in material, increased flexibility and deformation retention. This stabilizes the gasket, resulting in reduced cylinder bore distortion and improved combustion seal fro the extreme cylinder pressures found in high compression, supercharged and turbocharged applications. A proprietary polymer coating ensures the micro-seal of engine coolant and oil fluids.

A typical MLS head gasket requires a smoother (30Ra) surface finish than composite head gaskets. Mr. Gasket's proprietary polymer coating will seal a surface finish twice as rough (60Ra) as a typical MLS head gasket. For high performance street, drag race and oval track use. Mr. Gasket provides a Limited Lifetime Warranty for MLS cylinder head gaskets.

Features:

  • Gasket bore - 4.250 inch; Compressed thickness - .040 inch
  • Manufactured from 3-layer premium grade stainless steel and state of the art laser cutting
  • Optimized sealing embossments seals extreme cylinder pressure
  • Provides excellent stability and reduces cylinder bore distortion.
  • Proprietary polymer coating ensures the micro seal of engine coolant and oil fluids.
  • Ideal for supercharged, turbocharged, nitrous oxide and extreme compression ratio engines
  • For high-performance street, drag race and oval track use

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.

ApplicationAMC
Brand Mr. Gasket
Compressed Thickness.040 inch
Compression RatioUp to 16:1
Emission Code5
EngineAmerican Motors V8
Gasket Bore4.250 inch
Gasket LineMLS
MaterialMulti-Layered Steel
PackagingRetail
Product TypeHead Gasket
Quantity Per Pkg.1
WarrantyLimited Lifetime Warranty
Weight0.8500
UPC084041034545
Part Number3240G
5

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 Lifetime Warranty: See Details
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