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Cometic Pontiac 400/428/455 V8 .027in MLS Cylinder Head Gasket - 4.160in Bore

SKU: CGSC5711-027

Head Gaskets

CG Head Gaskets...

Cometic Pontiac 400/428/455 V8 .027in MLS Cylinder Head Gasket - 4.160in Bore

SKU: CGSC5711-027

Head Gaskets

CG Head Gaskets...

A$441.79
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

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

  • Embossed Outer Layers Coated w/Viton

Product Details

Bore Diameter:4.160in
Description:Pontiac 400/428/455 V8 Cylinder Head Gasket
Engine Make/Size:Pontiac 400/428/455ci
Engine:Pontiac 400, 428, & 455ci V8
Part Number:cgsC5711-027
Position:Left or Right
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:.027in
Title:Cometic Gasket Automotive Pontiac 400/428/455 V8 .027 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 00:02:57

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
C5711-027
Product Attributes - Part Type
Head Gaskets
Product Attributes - Product Line
Cometic MLS Head Gaskets
Product Attributes - UPC
191070039738
Product Attributes - Bore (in.)
4.160 in.
Product Attributes - Bore (mm)
105.660mm
Product Attributes - Gasket Material
Multi-layer stainless steel
Product Attributes - Compressed Thickness (in.)
0.027 in.
Product Attributes - Compressed Volume (cc)
6.014cc
Product Attributes - Lock Wire
No
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Cometic Gasket
StreetFX SKU cgsC5711-027
SFX Item ID 4172121
Supplier Item Code 4172121
Manufacturer SKU C5711-027
Manufacturer UPC 191070039738
Alternative References CGT-C5711-027, .027in, 4.160in

Compatibility

Application Data
  • MakePONTIAC
    Beginning Year1967
    Ending Year1969
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size7.0L/428
  • MakePONTIAC
    Beginning Year1967
    Ending Year1979
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size6.6L/400
  • MakePONTIAC
    Beginning Year1970
    Ending Year1976
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size7.5L/455

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