Cometic H1447SP4070S MLS Head Gasket 4.070 Bore .070 Thickness

The Cometic H1447SP4070S is a high-performance Multi-Layer Steel (MLS) head gasket engineered for extreme sealing performance in demanding applications. This precision-manufactured gasket features Cometic's proven MLS construction with multiple layers of embossed stainless steel, providing superior strength and exceptional rebound characteristics that maintain sealing integrity under high cylinder pressures and temperatures.

Key Features:

• Multi-layer stainless steel construction for maximum durability and sealing performance
• 4.070-inch bore diameter designed for custom or overbored applications
• 0.070-inch compressed operating thickness for compression ratio tuning
• Viton rubber coating on outer layers provides heat resistance up to 482°F (250°C)
• Load-controlled embossments distribute clamping force evenly across sealing surfaces
• Ideal for both aluminum-to-aluminum and aluminum-to-cast iron block combinations
• Withstands shearing forces created by dissimilar materials
• Sold individually - order quantity needed for your application

Cometic MLS gaskets require no additional sealants and are engineered to handle the extreme conditions of high-output street performance, racing, and forced induction applications. The stainless steel construction provides excellent corrosion resistance and the ability to rebound after repeated thermal cycles, making this gasket suitable for engines that see frequent temperature variations.