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Cometic AMC 390/401 Gen-3 V8 .051in MLS Cyl Head Gasket-4.380in Bore-With Indy Heads-18 Bolt Head

SKU: CGSC5409-051

Head Gaskets

CG Head Gaskets...

Cometic AMC 390/401 Gen-3 V8 .051in MLS Cyl Head Gasket-4.380in Bore-With Indy Heads-18 Bolt Head

SKU: CGSC5409-051

Head Gaskets

CG Head Gaskets...

A$338.59
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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

  • Embossed Outer Layers Coated w/Viton

Product Details

Description:AMC 390/401 Gen-3 V8 Cylinder Head Gasket
Engine Make/Size:AMC 390/401ci
Part Number:cgsC5409-051
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 AMC 390/401 Gen-3 V8 .051 in MLS Cylinder Head Gasket, 4.380 in Bore, With Indy Heads, 18 Bolt Head
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 00:06:30

Features

  • Conforms load distribution across the sealing area
  • Embossed Outer Layers Coated w/Viton
  • 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
C5409-051
Product Attributes - Part Type
Head Gaskets
Product Attributes - Product Line
Cometic MLS Head Gaskets
Product Attributes - UPC
00191070126148
Product Attributes - Bore (in.)
4.380 in.
Product Attributes - Bore (mm)
111.252mm
Product Attributes - Gasket Material
Multi-layer steel
Product Attributes - Compressed Thickness (in.)
0.051 in.
Product Attributes - Lock Wire
No
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Cometic Gasket
StreetFX SKU cgsC5409-051
SFX Item ID 4169224
Supplier Item Code 4169224
Manufacturer SKU C5409-051
Manufacturer UPC 191070126148
Alternative References CGT-C5409-051, Gen-3, .051in, Gasket-4.380in, Heads-18

Brochures

Compatibility

Application Data
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    SubmodelBROUGHAM
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    SubmodelDPL
    Beginning Year1971
    Ending Year1971
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeAMERICAN MOTORS
    ModelAMBASSADOR
    SubmodelSST
    Beginning Year1971
    Ending Year1972
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeAMERICAN MOTORS
    ModelJAVELIN
    SubmodelAMX
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeAMERICAN MOTORS
    ModelJAVELIN
    SubmodelBASE
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeAMERICAN MOTORS
    ModelJAVELIN
    SubmodelSST
    Beginning Year1971
    Ending Year1972
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeAMERICAN MOTORS
    ModelMATADOR
    SubmodelBASE
    Beginning Year1971
    Ending Year1976
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeAMERICAN MOTORS
    ModelMATADOR
    SubmodelBROUGHAM
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeAMERICAN MOTORS
    ModelMATADOR
    SubmodelX
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeJEEP
    ModelCHEROKEE
    SubmodelBASE
    Beginning Year1974
    Ending Year1978
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeJEEP
    ModelCHEROKEE
    SubmodelS
    Beginning Year1974
    Ending Year1978
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeJEEP
    ModelCHEROKEE
    SubmodelWIDE TRACK
    Beginning Year1978
    Ending Year1978
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeJEEP
    ModelCHEROKEE
    SubmodelWIDE TRACK CHIEF
    Beginning Year1975
    Ending Year1978
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeJEEP
    ModelJ10
    SubmodelBASE
    Beginning Year1974
    Ending Year1978
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeJEEP
    ModelJ20
    SubmodelBASE
    Beginning Year1974
    Ending Year1978
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeJEEP
    ModelWAGONEER
    SubmodelBASE
    Beginning Year1974
    Ending Year1978
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401
  • MakeJEEP
    ModelWAGONEER
    SubmodelCUSTOM
    Beginning Year1974
    Ending Year1976
    Engine TypeV8
    Engine FamilyAMC V8 GAS
    Engine Size6.6L/401

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