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Cometic GM LS1 SB 4.160 inch Bore .066 inch MLS Head Gasket

SKU: CGSC5318-066

Head Gaskets

CG Head Gaskets...

Cometic GM LS1 SB 4.160 inch Bore .066 inch MLS Head Gasket

SKU: CGSC5318-066

Head Gaskets

CG Head Gaskets...

A$483.36
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.

Product Overview

Cometic Head Gaskets are developed with the performance enthusiast in mind. With so many individual requirements for each motor Cometic offers a number of options to suit your specific motor and needs. *MLS* The Cometic MLS gasket is comprised of three layers of Stainless Steel. Cometic uses Stainless steel for increased strength, it’s ability to rebound and corrosion resistance. The outer layers of the gasket are embossed and coated on both sides with a flouroelastomer rubber based material (Viton) designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 2500C or 4820F. The center or shim layer of the gasket is comprised of an uncoated Stainless Steel layer, which can be varied to accommodate multiple thickness requirements. The MLS gasket is ideal for both aluminum heads to cast iron blocks and aluminum heads to aluminum blocks. The composition of MLS will also withstand the shearing forces created by aluminum heads on cast iron blocks. No re-torque is necessary. By design the MLS gasket promotes an even torque load across the sealing surface allowing for measurable reduced bore distortion. *CFM-20* A perforated steel core with an elastomer surface is ideal for head gaskets allowing heat to be drawn evenly across the gasket surface while providing maximum sealing characteristics when exposed to coolants and oils. *COPPER*


Features and Benefits

  • Coated On Both Sides w/Viton

Product Details

Bore:4.160in
Description:GM LS1/LS2/LS3/LS6 Gen-3/4 Small Block V8 Cylinder Head Gasket
Engine Make/Size:GM Small Block Dart/Brodix
Material:MLS
Part Number:cgsC5318-066
Position:N/A
Prop 65 (C, R or CR):CR
Prop 65 - Short Label:Prop_65.jpg
Prop 65 Warning Label:Prop_65.jpg
Prop 65 Yes/No:Yes
Thickness:.066in
Title:Cometic Gasket Automotive GM LS Gen-3/4 Small Block V8 .066 in MLS Cylinder Head Gasket, 4.160 in Bore
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: 2026-10-14 00:12:45

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
C5318-066
Product Attributes - Part Type
Head Gaskets
Product Attributes - Product Line
Cometic MLS Head Gaskets
Product Attributes - UPC
00191070124069
Product Attributes - Bore (in.)
4.160 in.
Product Attributes - Bore (mm)
105.664mm
Product Attributes - Gasket Material
Multi-layer stainless steel
Product Attributes - Compressed Thickness (in.)
0.066 in.
Product Attributes - Compressed Volume (cc)
14.700cc
Product Attributes - Lock Wire
No
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Cometic Gasket
StreetFX SKU cgsC5318-066
SFX Item ID 4161097
Supplier Item Code 4161097
Manufacturer SKU C5318-066
Manufacturer UPC 191070124069
Alternative References CGT-C5318-066, LS1

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

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