Cometic C5464-140 MLS Cylinder Head Gasket for Chrysler B/RB V8 4.500" Bore

The Cometic C5464-140 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chrysler B and RB series V8 engines. This gasket features a 4.500-inch bore diameter and a compressed thickness of .140 inches, making it ideal for performance builds and applications requiring precise sealing under extreme cylinder pressures.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability compared to traditional composite gaskets
• 4.500-inch bore diameter accommodates standard and slightly overbored Chrysler B/RB engines
• .140-inch compressed thickness allows for precise compression ratio tuning
• Embossed stainless steel layers with elastomeric coatings ensure maximum conformability to deck surfaces
• Designed to withstand high cylinder pressures in boosted and naturally aspirated performance applications
• Compatible with both iron and aluminum cylinder heads

Cometic's MLS gaskets are the preferred choice for engine builders seeking reliable head sealing in high-horsepower Chrysler big block builds. The multi-layer design distributes clamping loads evenly while accommodating thermal expansion and minor surface imperfections. Proper surface preparation with a minimum 50 RA finish is recommended for optimal performance.