Cometic Gasket MLS Cylinder Head Gasket

2006–2019 Nissan 350Z / Infiniti G35, G37, Q50 / Nissan 370Z 3.5L VQ35DE, VQ35HR, VQ37VHR

Part #: H3330SP3051S

Overview

The Cometic MLS Cylinder Head Gasket is engineered to provide a reliable and high-performance seal for your Nissan or Infiniti VQ engine. Designed specifically for the VQ35DE, VQ35HR, and VQ37VHR engines, this gasket is ideal for enthusiasts seeking to restore or upgrade their engine's sealing capabilities. Whether you're rebuilding your engine, increasing power output, or simply maintaining optimal compression, this MLS gasket ensures a durable and effective seal under demanding conditions.

Built with advanced multi-layer steel construction, this gasket offers superior sealing performance, helping to prevent leaks and maintain proper compression across the cylinder head. Its robust design makes it suitable for both daily driving and spirited performance applications, providing peace of mind and consistent engine operation.

Key Features

This MLS head gasket features several innovative design elements that set it apart from traditional gasket materials. Made from high-quality multi-layer steel, it incorporates embossed outer layers that meet the rigorous demands of harsh sealing environments, load conditions, and surface finishes. The active combustion seal on multiple layers ensures a tight, reliable seal even under high pressure and temperature conditions.

• Multi-layer steel (MLS) construction for enhanced durability and sealing performance
• Embossed outer layers designed to withstand harsh environments and surface finishes
• Active combustion seal on multiple layers for improved load distribution and leak prevention
• Precision-engineered for specific VQ35DE, VQ35HR, and VQ37VHR engines
• Designed to support high-performance applications and engine rebuilds
• Compatible with a wide range of Nissan and Infiniti models from 2006 to 2019
• Manufactured to meet or exceed OEM specifications for quality and reliability
• Resistant to thermal expansion and contraction, maintaining a consistent seal over time
• Ideal for both stock and modified engines requiring a high-quality gasket solution

Construction & Design

The Cometic MLS Cylinder Head Gasket is constructed from multiple layers of high-grade steel, carefully embossed and assembled to provide a precise fit and superior sealing. The multi-layer design allows for better load distribution and flexibility, accommodating surface irregularities and thermal expansion during engine operation. The embossed outer layers add an extra layer of protection against leaks, ensuring a tight seal even under high boost or increased power conditions.

The gasket's design emphasizes durability and longevity, with materials chosen to resist corrosion, thermal stress, and mechanical wear. Its engineered fit ensures compatibility with OEM and aftermarket cylinder heads, making installation straightforward for experienced technicians and DIY enthusiasts alike.

Performance & Sound

While this gasket is primarily designed for sealing and durability, its high-quality construction also contributes to maintaining optimal engine compression and performance. Proper sealing helps support consistent power delivery, efficient combustion, and reliable operation. Although it does not directly alter engine sound, a well-sealed engine can operate more smoothly and quietly, especially under high load conditions.

Installation & Fitment

The Cometic MLS Cylinder Head Gasket is a direct replacement for the factory gasket on compatible Nissan and Infiniti VQ engines. Installation requires standard engine rebuild procedures, including proper cleaning of mating surfaces and correct torque specifications. No special modifications or tuning are necessary, but professional installation is recommended to ensure proper sealing and performance. This gasket is designed to fit precisely, restoring your engine's original compression and reliability.

• Designed for easy installation during engine rebuilds or head gasket replacements
• No cutting, drilling, or special modifications required
• Compatible with OEM cylinder heads and aftermarket upgrades
• Supports high-performance and daily driving applications

What's Included

• One high-quality MLS Cylinder Head Gasket tailored for VQ35DE, VQ35HR, and VQ37VHR engines
• Complete sealing solution designed to meet OEM standards

Ideal For

• Engine rebuilds and head gasket replacements for Nissan 350Z, Infiniti G35, G37, Q50, and Nissan 370Z
• Performance enthusiasts seeking a durable, high-performance sealing solution
• Owners restoring or upgrading their VQ engine for increased reliability and power

Emissions Note

This MLS head gasket is designed to meet or exceed OEM specifications, ensuring proper sealing and engine performance. However, emissions compliance depends on local regulations and specific vehicle modifications. Please verify your vehicle's legal requirements before installation.