Gaskets and Seals› Engine Gaskets and Seals

Cometic Gasket

Cometic Ford Boss 302 4.030in Bore .040in MLS Head Gasket

$287.72

SKU: C006 C5958-040

In Stock
In Stock
Ships by Jun 11
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Cometic C5958-040 is a Multi-Layer Steel (MLS) head gasket designed for Small Block Ford applications with a 4.030-inch bore and 0.040-inch thickness. It features embossed layers of stainless steel with an outer layer coated in Viton rubber for heat resistance up to 482°F. This gasket provides maximum sealing performance for high-output engines and requires no additional sealants.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandCometic Gasket
Part NumberC006 C5958-040

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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