Gaskets and Seals Engine Gaskets and Seals

Cometic Gasket

Cometic GM LT1/LT4 Gen-2 Small Block V8 .056in MLS Cylinder Head Gasket - 4.100in Bore

$149.49

SKU: C006 C5646-056

In Stock
In Stock
Ships by Jun 16
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Cometic Gaskets C5646-056 is a cylinder head gasket designed for GM LT1/LT4 Gen-2 Small Block V8 engines. This gasket features a 4.100 inch bore and a .056 inch thickness.

Constructed from Multi-Layer Steel (MLS) with a Viton rubber coating, this head gasket offers durability and a reliable seal for high-performance applications.

Fitment

Fitment Guaranteed

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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 C5646-056

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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