Cometic C5691-098 Buick Stage I/II MLS Cylinder Head Gasket Bore - V6 3.860

The Cometic C5691-098 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Buick Stage I and Stage II V6 engines. This precision-manufactured gasket features a 3.860-inch bore diameter and 0.098-inch compressed thickness, providing optimal sealing and combustion chamber volume control for modified performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 3.860-inch bore diameter designed for Buick performance V6 engines
• 0.098-inch compressed gasket thickness for precise compression ratio tuning
• Compatible with both Stage I and Stage II Buick V6 builds
• Advanced MLS technology handles extreme cylinder pressures and temperatures
• Embossed stainless steel layers with elastomeric coating ensure leak-free seal

Cometic MLS head gaskets are the preferred choice for high-performance and racing applications where reliability under extreme conditions is critical. The multi-layer design allows for micro-movements between the block and head while maintaining an effective seal, making this gasket ideal for turbocharged, supercharged, and high-compression naturally aspirated Buick V6 builds.