Cometic C5633-066 Chrysler LA MLS Cylinder Head Gasket Bore - V8 4.040 066

The Cometic C5633-066 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chrysler LA small block V8 engines. This precision gasket features a 4.040-inch bore diameter and .066-inch compressed thickness, making it ideal for performance builds and engines with increased compression ratios.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme cylinder pressures
• 4.040-inch bore diameter accommodates standard and slightly overbored Chrysler LA V8 applications
• .066-inch compressed thickness allows for precise compression ratio tuning
• Stainless steel layers with Viton rubber coating resist combustion gases, coolant, and oil
• Embossed sealing beads around combustion chambers, coolant, and oil passages ensure maximum seal integrity
• Designed to handle high heat and pressure in performance, racing, and boosted applications

Cometic MLS gaskets are manufactured using advanced materials and processes to meet the demands of serious engine builders. The multiple steel layers provide even clamping pressure distribution while allowing the gasket to adapt to slight surface imperfections and thermal expansion. Compatible with Chrysler LA V8 engines including 273, 318, 340, and 360 cubic inch variants with appropriate bore specifications.