Gaskets and Seals› Engine Gaskets and Seals
Cometic Gasket
Cometic GM Gen-V/VI Big Block V8 .120in MLS Cylinder Head Gasket - 4.320in Bore
SKU: C006 C5817-120
Easy — 1–2 hours
Description
The gasket is constructed from multiple embossed layers of stainless steel, with the outer layers coated in Viton rubber for heat resistance up to 482°F. This design provides maximum sealing performance for high-output engines and is suitable for both aluminum-to-aluminum and aluminum-to-cast iron block configurations.
Fitment
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Specifications
| Brand | Cometic Gasket |
| Part Number | C006 C5817-120 |
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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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