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Est. 1957
Cometic Gasket

Cometic GM LS1 SB 4.100in Bore .036in MLS-5 Head Gasket

$97.74

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Cometic GM LS1 SB .036in MLS-5 Head Gasket. Features a 4.100in bore and Viton coating for harsh sealing environments.

Key Features

  • Fits a wide range of GM LS Gen-3 and Gen-4 small block V8 engines.
  • Multi-Layer Steel (MLS) construction with 3-5 layers of stainless steel for strength and corrosion resistance.
  • Outer layers are embossed and coated with heat-resistant Viton rubber up to 482°F (250°C).
  • Designed to meet demands of harsh sealing environments and varied surface finishes.
  • Features a .036 inch gasket thickness.
  • Has a 4.100 inch bore diameter.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

This Cometic Multi-Layer Steel (MLS) head gasket uses three to five layers of stainless steel, chosen for its strength, rebound ability, and resistance to corrosion. The outer layers are embossed and coated with a Viton rubber material, which can handle temperatures up to 482°F (250°C) and is designed to perform well in tough sealing conditions and on various surface finishes. This gasket has a .036 inch thickness and a 4.100 inch bore, making it suitable for a wide range of GM LS Gen-3 and Gen-4 small block V8 engines, including popular models like the Chevrolet Corvette, Cadillac CTS, and Buick LaCrosse.

The MLS construction offers improved sealing compared to traditional composite gaskets, especially under high load conditions. The Viton coating on the stainless steel layers helps create a reliable seal, even when dealing with different engine block and cylinder head surface textures. This gasket is a solid option when rebuilding or repairing the top end of your LS-based V8.

Specifications

Brand
Cometic Gasket
Manufacturer Part #
C5489-036
UPC
191070022761

Frequently Asked Questions

Cometic GM LS1 SB 4.100in Bore .036in MLS-5 Head Gasket

$97.74