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Cometic 75-87 Buick V6 196/231/252 Stage I & II 3.86 inch Bore .062 inch MLS-5 Head Gasket

SKU: CGSC5691-062

Head Gaskets

CG Head Gaskets

Cometic 75-87 Buick V6 196/231/252 Stage I & II 3.86 inch Bore .062 inch MLS-5 Head Gasket

SKU: CGSC5691-062

Head Gaskets

CG Head Gaskets

A$349.79
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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:3.860in
Cylinder Head Type:Stock and Stage I-II Heads
Description:.062in. MLS-5 Cylinder Head Gasket; 3.86in. Gasket Bore; Stock/Stage I-II Heads.
Engine Make/Size:Buick 192/231/252ci
Engine:Buick 192, 231, 252ci V6
Part Number:cgsC5691-062
Position:N/A
Prop 65 (C, R or CR):CR
Prop 65 - Short Label:Prop_65.jpg
Prop 65 Yes/No:Yes
Thickness:.062in
Title:Cometic Gaskets .062in. MLS-5 Cylinder Head Gasket; 3.86in. Gasket Bore; Stock/Stage I-II Heads.
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: 2026-10-12 04:49:32

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
C5691-062
Product Attributes - Part Type
Head Gaskets
Product Attributes - Product Line
Cometic MLS Head Gaskets
Product Attributes - UPC
191070136994
Product Attributes - Bore (in.)
3.860 in.
Product Attributes - Bore (mm)
98.044mm
Product Attributes - Gasket Material
Multi-layer stainless steel
Product Attributes - Compressed Thickness (in.)
0.062 in.
Product Attributes - Compressed Volume (cc)
11.889cc
Product Attributes - Lock Wire
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Designed to fit Buick Stage I and II cylinder heads.

Reference Information

Brand Name/s Cometic Gasket
StreetFX SKU cgsC5691-062
SFX Item ID 4160177
Supplier Item Code 4160177
Manufacturer SKU C5691-062
Manufacturer UPC 191070136994
Alternative References CGT-C5691-062, MLS-5

Compatibility

Application Data
  • MakeBUICK
    Beginning Year1975
    Ending Year1987
    Engine TypeV6
    Engine FamilyGM V6 GAS
    Engine Size3.8L/231
  • MakeBUICK
    Beginning Year1980
    Ending Year1984
    Engine TypeV6
    Engine FamilyGM V6 GAS
    Engine Size4.1L/252

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