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Engines and Components› Cylinder Heads and Components

Cometic Gasket

Cometic GM LHU/LNF Gen-2 ECOTEC .042in MLX Cylinder Head Gasket - 88mm Bore

$156.31 $140.68 Save $15.63

SKU: C006 C15256-042

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INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Part #: C15256-042

The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.

GM LHU/LNF Gen-2 ECOTEC .042in. MLX Cylinder Head Gasket | 88mm Bore

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The Cometic C15256-042 is a cylinder head gasket designed for GM LHU/LNF Gen-2 ECOTEC engines. It features HP shim technology to increase clampload around the combustion chamber, enhancing sealability, especially for open deck blocks. This gasket is crucial for preventing the mixture of gases and oils with the cooling system.

Fitment

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Specifications

BrandCometic Gasket
Part NumberC006 C15256-042

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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