Cometic C5702-040 GM LSX MLS Head Gasket Bore Thick - Gen-4 4.165 040

The Cometic C5702-040 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LSX Gen-4 small block V8 engines. This gasket features a 4.165-inch bore diameter and a compressed thickness of .040 inches, making it ideal for performance applications and engine rebuilds requiring precise combustion sealing.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under high compression and boost conditions
• 4.165-inch bore diameter accommodates stock and slightly overbored LSX Gen-4 engines
• .040-inch compressed gasket thickness allows for precise compression ratio tuning
• Compatible with GM LSX Gen-4 small block V8 engines and RHS (Racing Head Service) cylinder heads
• Engineered to handle extreme cylinder pressures in performance, racing, and forced induction applications
• Stopper layer embossment around combustion chamber prevents gasket damage from detonation

Cometic's MLS gaskets feature multiple layers of stainless steel with a Viton rubber coating that ensures exceptional recovery and sealing. The advanced material composition makes these gaskets reusable in many applications and highly resistant to coolant and oil degradation. Ideal for naturally aspirated, supercharged, or turbocharged LSX builds where reliability and performance are critical.