Cometic Gasket MLS Exhaust Gaskets

Fitment Summary

Part #: C5818-030

Overview

The Cometic GM LS1 5.3L/5.7L/6.0L .030 inch MLS Exhaust Gaskets are engineered to provide a reliable seal for high-performance exhaust systems. Designed for use with GM LS engines, these gaskets are ideal for enthusiasts, rebuilders, and professional mechanics seeking durable, leak-free exhaust sealing solutions. Their multi-layer steel construction ensures longevity and resistance to extreme cylinder pressures, making them suitable for both stock and modified applications. These gaskets help maintain optimal exhaust flow and prevent leaks, supporting engine efficiency and performance consistency without the need for sealants or additional sealing compounds.

Key Features

Designed with high-quality multi-layer steel for maximum durability and corrosion resistance, these exhaust gaskets feature a round port shape tailored for GM LS engines. The .030 inch thickness provides a precise fit, helping to maintain proper compression and sealing integrity under demanding conditions. Their construction supports consistent torque retention, reducing the risk of gasket blowout or leaks over time. The gaskets are engineered to withstand thermal cycling and engine vibrations, ensuring a long service life and reliable performance.

Construction & Design

Made from multi-layer steel, these gaskets feature a round port design optimized for GM LS engine exhaust manifolds. The materials and machining are selected to resist warping, corrosion, and burn-through, providing a robust sealing surface that maintains integrity even under high cylinder pressures.

Installation & Fitment

Designed for straightforward installation, these MLS exhaust gaskets are intended to replace worn or damaged gaskets during engine rebuilds or upgrades. Proper torque specifications should be followed to ensure optimal sealing and longevity.

What’s Included

This package includes a pair of MLS exhaust gaskets, providing enough for both sides of the exhaust manifold connection on compatible GM LS engines.

Ideal For

Perfect for engine rebuilds, performance upgrades, or routine maintenance on GM LS-based vehicles, these gaskets help ensure a secure, leak-free exhaust seal for reliable engine operation.