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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.
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).
Free Canadian shipping on qualifying orders $399+, with no duties or brokerage. Special order and made-to-order items can't be cancelled or refunded once ordered. Oversized items may carry a handling fee depending on your location; pickup in Mississauga has no fee.
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We carry 750,000+ parts, so we can probably still get it. Check the spelling, try the part number, or ask us.
Request this part Text us (833) 691-5717