Cometic C5934-140 GM LSX Small Block MLS Cylinder Head Gasket Bore - Gen-4 V8 4.125

The Cometic C5934-140 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LSX Gen-4 small block V8 engines. This left-hand side (LHS) gasket features a 4.125-inch bore diameter and .140-inch compressed thickness, providing exceptional sealing performance for high-performance and racing applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior durability and heat resistance
• 4.125-inch bore diameter designed for LSX Gen-4 specifications
• .140-inch compressed thickness for optimal compression ratio tuning
• Left-hand side (LHS) gasket configuration
• Advanced coating technology ensures excellent sealing under extreme cylinder pressures
• Reusable design allows for multiple installations when properly maintained
• Accommodates thermal expansion and contraction during engine operation

Cometic MLS gaskets are the preferred choice for engine builders and performance enthusiasts who demand reliable sealing in high-boost, high-compression, and extreme temperature applications. The multiple layers of stainless steel with integrated sealing beads create a superior seal that withstands cylinder pressures far exceeding stock gasket capabilities.