Cometic H2004SP1030S MLS Head Gasket Thickness - 1.030mm

The Cometic H2004SP1030S is a multi-layer steel (MLS) cylinder head gasket engineered for high-performance applications requiring superior sealing and durability. Designed to meet the demanding requirements of modified engines, this gasket provides reliable compression sealing in both aluminum-to-cast iron and aluminum-to-aluminum block configurations.

Multi-Layer Steel Construction:

This MLS gasket features a three-layer design using high-grade stainless steel throughout. The outer layers are precision-embossed and coated on both sides with Viton, a fluoroelastomer rubber-based material that excels in harsh sealing environments. Viton offers exceptional heat resistance up to 482°F (250°C) and maintains its sealing properties when exposed to coolants, oils, and extreme combustion pressures.

The center shim layer consists of uncoated stainless steel, which can be manufactured in various thicknesses to accommodate specific compression ratio requirements. The 1.030mm thickness of this gasket makes it suitable for engines requiring precise deck height and compression adjustments.

Key Features:

• Three-layer stainless steel construction for maximum strength and corrosion resistance
• Viton coating on outer layers provides superior chemical and heat resistance
• 1.030mm (approximately 0.041 inch) compressed thickness
• Excellent rebound characteristics maintain consistent seal under thermal cycling
• Resists shearing forces from thermal expansion between dissimilar metals
• Even torque distribution reduces bore distortion for improved ring seal
• No re-torque required after installation
• Compatible with both cast iron and aluminum engine blocks

The MLS design promotes even clamping force across the entire sealing surface, which helps minimize cylinder bore distortion compared to conventional composite gaskets. This results in improved piston ring seal, reduced oil consumption, and better overall engine performance. The stainless steel construction provides the resilience needed to maintain seal integrity through repeated heat cycles and the expansion/contraction that occurs during engine operation.