Cometic H1295SPP040S MLS Head Gasket 4.035" Bore .040" GM LS

The Cometic H1295SPP040S is a Multi-Layer Steel (MLS) head gasket designed for GM LS engines with a 4.035-inch bore and .040-inch compressed thickness. This professional-grade gasket delivers maximum sealing performance for high-output engines without requiring additional sealants.

Multi-Layer Steel Construction:

• Multiple layers of stainless steel provide superior strength and excellent rebound characteristics
• Outer layers embossed and coated with Viton fluoroelastomer on both sides for heat resistance up to 482°F
• Center shim layer constructed from uncoated stainless steel for thickness adjustment
• Load-controlled embossments distribute clamping force evenly across the sealing area

Key Features:

• Ideal for aluminum-to-aluminum and aluminum-to-cast iron block combinations
• Withstands shearing forces created between dissimilar materials
• Requires less clamp load and creates less bore distortion than conventional gaskets
• Resists corrosion and extreme cylinder pressures
• Designed for 4-bolt LS engine applications

Cometic MLS gaskets are the preferred choice for performance enthusiasts and professional engine builders who demand reliable sealing under the most demanding conditions.