Cometic Gasket BMW M30B34

Fits 1982–1993 BMW 535i, 635i, 735i with M30B34 engine

Part #: C4477-140

Overview

The Cometic MLS (Multi-Layer Steel) Head Gasket for BMW M30B34 engines is engineered to deliver superior sealing performance for high-output applications. Crafted from multiple embossed layers of stainless steel with a Viton rubber coating on the outer layers, this gasket is designed to withstand the demanding conditions of modern high-performance engines. Its compressed thickness of 0.140 inches ensures a reliable seal between the cylinder head and engine block, helping to prevent leaks and maintain optimal compression. This gasket is suitable for use with both aluminum and cast iron engine components, making it an ideal choice for enthusiasts and professional rebuilders seeking durability and peace of mind during engine assembly or overhaul. Whether you're restoring a classic BMW or upgrading a high-mileage engine, this MLS head gasket provides the strength and sealing integrity needed to support increased power levels and extended engine life. Its design eliminates the need for sealants, simplifying installation and ensuring a clean, reliable seal every time. The gasket's construction helps accommodate the shearing forces created by different materials, maintaining a tight seal under thermal expansion and high-pressure conditions.

Key Features

This MLS head gasket offers several key benefits for your BMW M30B34 engine:

• Constructed from multiple embossed stainless steel layers for enhanced durability
• Outer layers coated with Viton rubber for improved sealing and chemical resistance
• Designed to withstand high compression and operating temperatures
• Compatible with aluminum and cast iron engine components
• No sealants required for installation, simplifying the process
• Engineered to handle shearing forces between dissimilar materials
• Optimized for high-performance and long-lasting engine sealing

Construction & Design

The gasket features a multi-layer steel construction with embossed layers that provide strength and flexibility. The Viton rubber coating on the outer layers enhances sealing capabilities and chemical resistance, ensuring a reliable seal over the engine's lifespan. The precise engineering of the gasket allows it to accommodate thermal expansion and contraction, maintaining integrity under demanding conditions.

Installation & Fitment

This head gasket is designed for straightforward installation on BMW M30B34 engines from 1982 to 1993. Proper torque specifications and installation procedures should be followed to ensure optimal sealing and performance. It is recommended to inspect the mating surfaces for cleanliness and flatness prior to installation to achieve the best results.

Ideal For

This gasket is ideal for engine rebuilds, high-performance upgrades, and restoring the reliability of vintage BMW M30B34 engines. It supports engines that are subjected to increased power output or extended use, providing a durable and dependable seal for your vehicle.