Cometic C15508-051 MLS Cylinder Head Gasket GM Gen III/IV Bore - LS1/LS2/LS3/LS6 4.085

The Cometic C15508-051 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LS1, LS2, LS3, and LS6 Gen-III/IV small block V8 engines. This high-performance gasket features a .051-inch compressed thickness and is designed for a 4.085-inch bore diameter, making it ideal for stock and mild performance builds requiring precise sealing and durability.

Key Specifications:

• Compressed thickness: .051 inches (51 thousandths)
• Bore diameter: 4.085 inches
• Bolt hole size: 1/2-inch studs or bolts
• Multi-Layer Steel (MLS) construction for superior sealing
• Compatible with GM LS1, LS2, LS3, LS6, and other Gen-III/IV small block V8 engines

Features and Benefits:

• MLS construction provides multiple layers of stainless steel with elastomeric coatings for optimal combustion sealing
• Maintains proper seal under extreme cylinder pressure and temperature cycling
• Accommodates minor surface imperfections for reliable head-to-block sealing
• Designed for use with aftermarket head studs or factory head bolts
• Manufactured to OEM-quality standards with precise bore alignment

This gasket is sold individually and requires two gaskets per engine. Cometic Gasket is a leading manufacturer of high-performance engine sealing solutions trusted by professional engine builders and performance enthusiasts worldwide.