Cometic C5459-036 MLS Cylinder Head Gasket for Chrysler B/RB V8 4.250" Bore

The Cometic C5459-036 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chrysler B and RB series V8 engines. This high-performance gasket features a 4.250-inch bore diameter and a compressed thickness of .036 inches, making it ideal for both stock rebuilds and performance applications.

Key Features:

• Multi-Layer Steel construction provides superior sealing and durability under extreme cylinder pressures
• 4.250-inch bore diameter accommodates stock and slightly overbored engine configurations
• .036-inch compressed thickness allows for precise compression ratio tuning
• Designed for Chrysler B-Series (383, 400) and RB-Series (413, 426, 440) V8 engines
• Exceeds OEM specifications for high-performance and racing applications
• Requires proper surface preparation with RA finish between 50-60 for optimal sealing

Cometic MLS gaskets feature multiple layers of stainless steel with elastomeric coatings that create a superior seal while accommodating minor surface imperfections. The embossed layers provide multiple sealing points that maintain integrity even under severe thermal cycling and high boost conditions. This gasket is an excellent choice for street performance builds, forced induction applications, and racing engines where reliability is critical.