Gaskets and Seals› Engine Gaskets and Seals
Cometic Gasket
Cometic GM/Mercury Marine 1050 Gen-IV Big Block V8 .086in MLS Cylinder Head Gasket-4.580in Bore
SKU: C006 C5640-086
Easy — 1–2 hours
Description
This gasket also includes two slotted lifter valley bolts for secure installation. Cometic gaskets are known for maximum sealing performance and the ability to rebound to resist corrosion.
Fitment
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Specifications
| Brand | Cometic Gasket |
| Part Number | C006 C5640-086 |
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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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