Chevrolet Performance LS1/LS6 MLS Head Gasket 3.920 Bore .051 Thick — Fits GM LS-Series

SKU: FMQX_12589226
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Chevrolet Performance Parts

Chevrolet Performance Parts engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Chevrolet Performance Parts lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Superior Sealing for LS1 and LS6 Engines

Achieve a leak-free, high-performance seal with the Chevrolet Performance Multi-Layer Steel (MLS) Head Gasket. Specifically designed for LS1 and LS6 engine platforms, this gasket is the gold standard for enthusiasts demanding reliability and performance. With a 3.920-inch bore and a .051-inch compressed thickness, it is engineered to handle the increased cylinder pressures of performance-built engines while maintaining an airtight seal between the block and cylinder head.

Why Choose This MLS Gasket?

  • Engine Fitment: LS1 and LS6 GM LS-Series
  • Bore Size: 3.920 inches
  • Thickness: 0.051 inches (Compressed)
  • Design: Multi-Layer Steel for maximum durability
  • Performance: Resists blowout under high-boost or high-compression

The MLS construction utilizes multiple layers of stainless steel, which provide superior spring-back and load distribution compared to traditional composite gaskets. This design is highly effective at conforming to the mating surfaces of your engine, ensuring that coolant and combustion gases stay exactly where they belong. Whether you are restoring a classic LS-powered vehicle or building a high-output street machine, this gasket provides the peace of mind that your engine is protected. Experience the difference in quality and performance with genuine parts from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Chevrolet Performance Parts

Chevrolet Performance Parts engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Chevrolet Performance Parts lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Superior Sealing for LS1 and LS6 Engines

Achieve a leak-free, high-performance seal with the Chevrolet Performance Multi-Layer Steel (MLS) Head Gasket. Specifically designed for LS1 and LS6 engine platforms, this gasket is the gold standard for enthusiasts demanding reliability and performance. With a 3.920-inch bore and a .051-inch compressed thickness, it is engineered to handle the increased cylinder pressures of performance-built engines while maintaining an airtight seal between the block and cylinder head.

Why Choose This MLS Gasket?

  • Engine Fitment: LS1 and LS6 GM LS-Series
  • Bore Size: 3.920 inches
  • Thickness: 0.051 inches (Compressed)
  • Design: Multi-Layer Steel for maximum durability
  • Performance: Resists blowout under high-boost or high-compression

The MLS construction utilizes multiple layers of stainless steel, which provide superior spring-back and load distribution compared to traditional composite gaskets. This design is highly effective at conforming to the mating surfaces of your engine, ensuring that coolant and combustion gases stay exactly where they belong. Whether you are restoring a classic LS-powered vehicle or building a high-output street machine, this gasket provides the peace of mind that your engine is protected. Experience the difference in quality and performance with genuine parts from GGCRACING.

Product Details

Product Description

About Chevrolet Performance Parts

Chevrolet Performance Parts engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Chevrolet Performance Parts lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Superior Sealing for LS1 and LS6 Engines

Achieve a leak-free, high-performance seal with the Chevrolet Performance Multi-Layer Steel (MLS) Head Gasket. Specifically designed for LS1 and LS6 engine platforms, this gasket is the gold standard for enthusiasts demanding reliability and performance. With a 3.920-inch bore and a .051-inch compressed thickness, it is engineered to handle the increased cylinder pressures of performance-built engines while maintaining an airtight seal between the block and cylinder head.

Why Choose This MLS Gasket?

  • Engine Fitment: LS1 and LS6 GM LS-Series
  • Bore Size: 3.920 inches
  • Thickness: 0.051 inches (Compressed)
  • Design: Multi-Layer Steel for maximum durability
  • Performance: Resists blowout under high-boost or high-compression

The MLS construction utilizes multiple layers of stainless steel, which provide superior spring-back and load distribution compared to traditional composite gaskets. This design is highly effective at conforming to the mating surfaces of your engine, ensuring that coolant and combustion gases stay exactly where they belong. Whether you are restoring a classic LS-powered vehicle or building a high-output street machine, this gasket provides the peace of mind that your engine is protected. Experience the difference in quality and performance with genuine parts from GGCRACING.

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