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Cometic Chevrolet Mark-IV Big Block V8 .188in Rubber Valve Cover Gasket

SKU: CGSC5975

Valve Cover Gaskets

CG Valve Cover Gaskets...

Cometic Chevrolet Mark-IV Big Block V8 .188in Rubber Valve Cover Gasket

SKU: CGSC5975

Valve Cover Gaskets

CG Valve Cover Gaskets...

A$242.29
IN STOCK! Est Ship 4-7 days. In stock at 2 locations (more than 10 available)

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Description

Exclusive Cometic Gasket flash sale discount at StreetFX!

Talk about timing! This is a limited offer while stocks last on various Cometic Gasket part numbers. There's never been a better time to buy your Cometic Gasket upgrades, so what are you waiting for?!

This item is currently on sale!

Same-day payment required to secure promotional price. Promotions may end early or be extended based on stock levels or other factors.

Valve Cover Gasket - 0.188 in Thick - Steel Core Silicone Rubber - Big Block Chevy - Each

Additional Information

Requires 2 per engine

Valve Cover Gasket

Race inspired designs and materials ensure that these valve cover gaskets will perform well above the OE standard. Cometic valve cover gaskets surpass the quality and ability of typical cork or paper gaskets offered by other manufactures. Withstands blowing out, over tightening, and high vacuum all at an affordable price.

Additional Information

Chevrolet Mark-IV Big Block V8 .188in. Molded Rubber Valve Cover Gasket; Each

Part Type

Engine Valve Cover Gasket

Product Overview

COMETIC Valve Cover Gaskets are manufactured from a soft durometer rubber wrapped around a steel torque limiting frame. Our valve cover gaskets offer unparalleled sealing and extended reusability. This design surpasses the quality and ability of a typical cork or paper gasket. The rubber and steel combination will withstand blowing out, over tightening, and high amounts of vacuum.

Additional Application Notes
• Torque Limiters: Yes Material: NBRRubber Compressed Thickness: .188
• Torque Limiters: Yes Material: NBRRubber Incl. 502ci Crate Engine~Incl. Chevy/GM Big Block V8 Aftermarket/Race/Marine Blocks Compressed Thickness: .188 0.188 in. Nitrile Rubber
• Incl. 502ci Crate Engine~ Incl. Chevy/GM Big Block V8 Aftermarket/Race/Marine Blocks 0.188 in. Nitrile Rubber
• Incl. 502ci Crate Engine~Incl. Chevy/GM Big Block V8 Aftermarket/Race/Marine Blocks 0.188 in. Nitrile Rubber
• Torque Limiters: Yes Material: NBR Rubber Incl. 502ci Crate Engine~Incl. Chevy/GM Big Block V8 Aftermarket/Race/Marine Blocks Compressed Thickness: .188 0.188 in. Nitrile Rubber

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

Data: v4.2 - Upd: 2026-11-09 03:12:18

Features

  • Steel Torque Limiting Frame

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.

Specifications

Product Details

Description:Chevrolet Mark-IV Big Block V8 Valve Cover Gasket
Engine:GM Gen II/ Mark IV, V, VI Big Block V8
Material:Molded Rubber
Part Number:cgsC5975
Position:Left or Right
Title:Cometic Chevrolet Mark-IV Big Block V8 Valve Cover Gasket

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: 2026-11-07 18:40:51

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 cgsC5975
SFX Item ID 4161819
Accounting SKU cgs-C5975
Manufacturer SKU C5975
Manufacturer UPC 191070011673
Alternative References C5975, CAGC5975, CGT-C5975

Valve Cover Gasket, 0.188 in. Thick, Rubber, Steel, Chevy, Big Block, Each

Cometic valve cover gaskets are made from aramid fiber. This is a premium high-temperature, high-density, creep-resistant material that is fuel-resistant and asbestos-free. These gaskets require no retorquing or additional sealant. If you want a dependable seal, go with Cometic Gasket valve cover gaskets.

Product Attributes
BrandCometic
Manufacturer's Part NumberC5975
Part TypeValve Cover Gaskets
Product LineCometic Valve Cover Gaskets
UPC191070011673
Gasket MaterialRubber/Steel Core
Thickness (in.)0.188
QuantitySold individually.
NotesSteel core gaskets may not fit valve covers with a gasket retaining lip.

Compatibility

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