Gaskets and Seals› Engine Gaskets and Seals

Cometic Gasket

Cometic Pontiac 400/428/455 V8 .051in 4.2in Bore MLS Cylinder Head Gasket

$130.44

SKU: C006 C5769-051

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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Cometic C5769-051 is a Multi-Layer Steel (MLS) cylinder head gasket designed for Pontiac 400, 428, and 455 V8 engines. It features a compressed thickness of 0.051 inches and a bore size of 4.2 inches.

Constructed with multiple embossed layers of stainless steel, this gasket provides maximum sealing performance for high-output engines and does not require sealants. The outer layers are coated with Viton rubber, a heat-resistant material suitable for harsh sealing environments. This gasket is manufactured in the United States.

Fitment

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Specifications

BrandCometic Gasket
Part NumberC006 C5769-051

Buy with Confidence

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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