Cometic C5248-089 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.165

The Cometic C5248-089 is a high-performance multi-layer steel (MLS) cylinder head gasket engineered specifically for Chevrolet Generation 1 Small Block V8 engines. This precision gasket features a 4.165-inch bore diameter and .089-inch compressed thickness, designed to provide superior sealing under extreme combustion pressures and temperatures.

Key Specifications:

• Multi-layer steel construction for maximum durability and heat resistance
• 4.165-inch bore diameter for optimal combustion chamber sealing
• .089-inch (2.26mm) compressed gasket thickness
• Compatible with 18-degree and 23-degree cylinder heads
• Round bore design for consistent sealing surface
• Includes steam holes for proper coolant circulation

Application:

• Chevrolet Generation 1 Small Block V8 engines (265, 283, 302, 305, 327, 350, 400)
• Performance and racing applications
• Engines with aftermarket cylinder heads featuring 18 or 23-degree valve angles

Cometic MLS gaskets feature multiple layers of stainless steel with elastomeric coatings that micro-seal surface imperfections while maintaining excellent torque retention and reusability. The advanced material composition allows these gaskets to withstand extreme cylinder pressures in high-performance and forced induction applications while providing superior cold sealing characteristics for reliable starts and consistent performance.