Gaskets and Seals Engine Gaskets and Seals

Cometic Gasket

Cometic Mercury Marine Chevy Mark-IV-GM Gen-V/VI Big Block V8 .040in MLS Cyl Head Gskt-4.510in Bore

$299.94

SKU: C006 C5035-040

In Stock
In Stock
Ships by Jun 20
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Cometic C5035-040 is a Multi-Layer Steel (MLS) cylinder head gasket designed for Mercury Marine Chevrolet Mark-IV and GM Gen-V/VI Big Block V8 engines. This gasket features a 4.510 inch bore and a compressed thickness of 0.036 inches.

Constructed with multiple embossed layers of stainless steel, the outer layers are coated with Viton rubber for enhanced sealing performance. The center layer is uncoated stainless steel, allowing for varied thickness requirements. These MLS gaskets are ideal for both aluminum-to-aluminum and aluminum-to-cast iron block applications and do not require sealants.

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Specifications

BrandCometic Gasket
Part NumberC006 C5035-040

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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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