Cometic C5459-066 MLS Cylinder Head Gasket for Chrysler B/RB V8 4.250" Bore

The Cometic C5459-066 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chrysler B-block and RB-block V8 engines with a 4.250-inch bore diameter. This precision gasket features a .066-inch compressed thickness, providing excellent sealing capability for both street and performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior durability and heat resistance
• .066-inch (1.68mm) compressed thickness for optimal sealing
• 4.250-inch bore diameter designed for standard and performance builds
• Compatible with Chrysler B-block and RB-block V8 engines including 383, 400, 413, 426, and 440 cubic inch variants
• Advanced embossment technology ensures consistent clamping pressure
• Eliminates the need for additional sealants when surfaces are properly prepared

Cometic MLS gaskets utilize multiple layers of stainless steel with proprietary coating materials to provide maximum sealing performance under extreme cylinder pressures and temperatures. The gasket's design allows for minor surface imperfections while maintaining excellent combustion seal integrity, making it ideal for high-compression and forced induction applications.