Cometic GM LV1/LV3 EcoTec3 .054in MLX Cylinder Head Gasket - 4.000in Bore - RHS - C15277-054

The Cometic GM LV1/LV3 EcoTec3 .054in MLX Cylinder Head Gasket - 4.000in Bore - RHS - C15277-054 is a precision-engineered head gasket with a 4.000" bore and .054" compressed thickness for the Right-Hand Side (RHS).

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: 4.000"
• Thickness: .054" compressed
• Position: Right-Hand Side (RHS)
• Part Number: C15277-054

Verified fitment: Chevrolet Express 2500 (2018–2019); Chevrolet Express 3500 (2018–2019); Chevrolet Silverado 1500 (2014–2019); GMC Savana 2500 (2018–2019); GMC Savana 3500 (2018–2019).