Cometic GM LT1/LT4 V8 Gen-5 .071in MLX Cylinder Head Gasket - 4.150in Bore - C15203-071

The Cometic GM LT1/LT4 V8 Gen-5 .071in MLX Cylinder Head Gasket - 4.150in Bore - C15203-071 is a precision-engineered head gasket with a 4.150" bore and .071" compressed thickness.

The Cometic MLX Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring MLX Multi-Layer Steel (MLS) construction, this gasket uses multiple embossed steel layers for superior sealing under extreme cylinder pressures and temperatures. Precision CNC-machined to exacting tolerances, this gasket seals combustion, water jackets, and oil passages simultaneously — eliminating the need for multiple gaskets or sealing compounds.

• Material: MLX Multi-Layer Steel (MLS)
• Bore Size: 4.150"
• Thickness: .071" compressed
• Part Number: C15203-071

Verified fitment: Chevrolet Corvette (2017–2018).