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Cometic GM LS1 SB 4.100in Bore .066in MLS-5 Head Gasket

SKU: CGSC5489-066

Head Gaskets

CG Head Gaskets...

Cometic GM LS1 SB 4.100in Bore .066in MLS-5 Head Gasket

SKU: CGSC5489-066

Head Gaskets

CG Head Gaskets...

A$332.78
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel

Product Overview

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.


Features and Benefits

  • Coated On Both Sides w/Viton

Product Details

Description:Cylinder Head Gasket
Engine Make/Size:GM Gen III/IV LS Series
Part Number:cgsC5489-066
Prop 65 (C, R or CR):CR
Prop 65 - Short Label:Prop_65.jpg
Prop 65 Yes/No:Yes
Title:Cometic Gasket GM LS1/LS2/LS3/LS6 Gen-3/4 Small Block V8 Cylinder Head Gasket
WARNING CA Proposition 65 Message:The state of California has determined that certain chemicals used in the manufacture of this product have been known to cause cancer and birth defects. For more information; visit www.p65Warnings.ca.gov
WARNING CA Proposition 65:Yes

Part Type

Engine Cylinder Head Gasket

Data: v4.2 - Upd: 2026-10-13 17:20:59

Features

  • Coated On Both Sides w/Viton
  • Conforms load distribution across the sealing area
  • Requires less clamp load creating less bore distortion
  • The center or shim layer is an uncoated stainless steel layer which can be varied to accommodate multiple thickness requirements
  • The embossed outer layers of the gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes

Specifications

Product Attributes - Brand
Cometic
Product Attributes - Manufacturer's Part Number
C5489-066
Product Attributes - Part Type
Head Gaskets
Product Attributes - Product Line
Cometic MLS Head Gaskets
Product Attributes - UPC
00191070058951
Product Attributes - Bore (in.)
4.100 in.
Product Attributes - Bore (mm)
104.140mm
Product Attributes - Gasket Material
Multi-layer stainless steel
Product Attributes - Compressed Thickness (in.)
0.066 in.
Product Attributes - Compressed Volume (cc)
14.279cc
Product Attributes - Lock Wire
No
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Cometic Gasket
StreetFX SKU cgsC5489-066
SFX Item ID 4159592
Supplier Item Code 4159592
Manufacturer SKU C5489-066
Manufacturer UPC 191070058951
Alternative References CGT-C5489-066, LS1, 4.100in, .066in, MLS-5

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2013
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2013
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2014
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
  • MakeCHEVROLET
    Beginning Year2008
    Ending Year2014
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.2L/376

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