Cometic C5799-075 MLS Cylinder Head Gasket for Chrysler B/RB 4.600" Bore

The Cometic C5799-075 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chrysler B and RB big block engines. This precision-manufactured gasket features a 4.600-inch bore diameter and .075-inch compressed thickness, designed for siamese bore cylinder head applications.

Key Features:

• Multi-Layer Steel construction provides superior sealing and durability under extreme conditions
• 4.600-inch bore diameter accommodates standard and modified B/RB engine builds
• .075-inch (75 thousandths) compressed thickness for optimal compression ratio tuning
• Siamese bore design matches factory Chrysler B and RB block architecture
• Engineered to handle high cylinder pressures in performance and racing applications
• Embossed stainless steel layers with FKM elastomer coating ensure reliable sealing

Cometic MLS gaskets are the preferred choice for engine builders working with forced induction, nitrous oxide, or high-compression naturally aspirated builds. The multi-layer design allows for micro-movement between layers while maintaining a positive seal, making these gaskets ideal for aluminum heads on iron blocks where thermal expansion rates differ. Compatible with Chrysler 383, 400, 413, 426, and 440 cubic inch big block engines.