Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Cometic GM Small Block 18/23 Degree V8 NBR Steel Spline Valve Cover Gasket

SKU: CGSC5973

Valve Cover Gaskets

CG Valve Cover Gaskets...

Cometic GM Small Block 18/23 Degree V8 NBR Steel Spline Valve Cover Gasket

SKU: CGSC5973

Valve Cover Gaskets

CG Valve Cover Gaskets...

Sale ends in Calculating...

A$224.58 A$225.68
IN STOCK! Est Ship 4-7 days. In stock at 2 locations (more than 10 available)

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

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 - Small Block Chevy - Each

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 Gen-1 Small Block V8 .188in. Molded Rubber Valve Cover Gasket; 18/23 Degree Heads; 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: Molded Rubber Compressed Thickness: .188 18/23 Degree 0.188 in. Nitrile Rubber
• 18/23 Degree 0.188 in. Nitrile Rubber
• Torque Limiters: Yes Material: Molded Rubber Compressed Thickness: .188

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 03:13:09

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:Molded Rubber Valve Cover Gasket. Each
Engine:GM Gen I Small Block V8
Material:Molded Rubber
Part Number:cgsC5973
Title:Cometic Gaskets Molded Rubber Valve Cover Gasket. Each

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 18:35:53

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 cgsC5973
SFX Item ID 4159238
Accounting SKU cgs-C5973
Manufacturer SKU C5973
Manufacturer UPC 191070023096
Alternative References C5973, CAGC5973, CGT-C5973

Valve Cover Gasket, 0.188 in. Thick, Rubber, Chevy, Small 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 NumberC5973
Part TypeValve Cover Gaskets
Product LineCometic Valve Cover Gaskets
UPC191070023096
Gasket MaterialRubber/Steel Core
Thickness (in.)0.188
QuantitySold individually.
NotesSteel core gaskets may not fit valve covers with a gasket retaining lip. Will fit 18 or 23 degree cylinder heads.

Compatibility

Loading compatibility information...

Keep shopping

More from Cometic Gasket