Australia-wide shipping on performance, 4x4 and vehicle-specific upgrades.

Cometic GM LSX Gen-4 Small Block V8 .044in MLX Cylinder Head Gasket - 4.165in Bore - LHS

SKU: CGSC5703-044

Head Gaskets

CG Head Gaskets...

Cometic GM LSX Gen-4 Small Block V8 .044in MLX Cylinder Head Gasket - 4.165in Bore - LHS

SKU: CGSC5703-044

Head Gaskets

CG Head Gaskets...

A$475.46
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.
View cart
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

IMPORTANT NOTICE: Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Cometic Gasket, Cometic, Cometic Gasket Automotive, Cometic Gasket Marine, Cometic Gasket Powersports, COMETIC GASKETS, Cometic Powersport Gaskets StreetFX SKU cgsC5703-044 SFX Item ID 4170495 Accounting SKU cgs-C5703-044 Manufacturer SKU C5703-044 Manufacturer UPC 191070137267 Alternative References C5703-044, CGT-C5703-044

Cylinder Head Gasket

MLX Gaskets utilize an integrated "stopper" layer for combustion chamber sealing

Additional Information

GM LSX Gen-4 Small Block V8 .044in. MLX Cylinder Head Gasket; 4.165in. Bore; LHS

Part Type

Engine Cylinder Head Gasket

Features and Benefits

  • Embossed Outer Layers Coated w/Viton
  • Improved clamp load around the cylinder without increasing bore distortion

Product Details

Description:GM LSX Gen-4 Small Block V8 Cylinder Head Gasket
Engine Make/Size:GM LSX Small Block
Part Number:cgsC5703-044
Position:Left
Title:Cometic Gasket Automotive GM LSX Gen-4 Small Block V8 .044 in MLX Cylinder Head Gasket, 4.165 in Bore, LHS

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.

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-10-13 17:27:55

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

  • Embossed Outer Layers Coated w/Viton

Product Details

Description:GM LSX Gen-4 Small Block V8 Cylinder Head Gasket
Engine Make/Size:GM LSX Small Block
Part Number:cgsC5703-044
Position:Left
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
Title:Cometic Gasket Automotive GM LSX Gen-4 Small Block V8 .044 in MLX Cylinder Head Gasket, 4.165 in Bore, LHS
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: 2026-09-27 16:34:28

Features

  • Embossed Outer Layers Coated w/Viton
  • Improved clamp load around the cylinder without increasing bore distortion

Specifications

Head Gasket, MLX, 4.165 in. Bore, 0.044 in. Compressed Thickness, Chevy, LSX Race, Driver Side, Each

The leak stops here! Cometic MLX head gaskets feature a unique integrated "stopper" layer for optimum combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. The MLX head gaskets, like their MLS counterparts, are multi-layer stainless steel for increased strength—and require no sealants or re-torquing. Dozens of models are available; order the MLX head gaskets designed to maximize your engine's power and performance.

Product Attributes
BrandCometic
Manufacturer's Part NumberC5703-044
Part TypeHead Gaskets
Product LineCometic MLX Head Gaskets
UPC00191070137267
Bore (in.)4.165 in.
Bore (mm)105.791mm
Gasket MaterialMulti-layer stainless steel
Compressed Thickness (in.)0.044 in.
Compressed Volume (cc)9.753cc
Lock WireNo
QuantitySold individually.
NotesDesigned to fit LSX race engines with 18 bolt head. Driver side head gasket.

Product Details

Description:GM LSX Gen-4 Small Block V8 Cylinder Head Gasket
Engine Make/Size:GM LSX Small Block
Part Number:cgsC5703-044
Position:Left
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
Title:Cometic Gasket Automotive GM LSX Gen-4 Small Block V8 .044 in MLX Cylinder Head Gasket, 4.165 in Bore, LHS
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

Reference Information

Brand Name/s Cometic Gasket
StreetFX SKU cgsC5703-044
SFX Item ID 4170495
Supplier Item Code 4170495
Manufacturer SKU C5703-044
Manufacturer UPC 191070137267
Alternative References CGT-C5703-044, Gen-4, .044in, 4.165in

Compatibility

No specific fitment data available for this part. For clarification, please contact us.

Detailed Compatibility


Application Data
MakeCHEVROLET
Beginning Year2008
Ending Year2018
Engine TypeV8
Engine FamilyChevy small block Gen III/IV (LS-based engines)
Engine Size6.2L/376

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.

Loading compatibility information...

Keep shopping

More from Cometic Gasket