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Gaskets and Seals› Engine Gaskets and Seals

Cometic

MLS Head Gasket, .051" Thickness, 4.630" Bore

$115.44 $98.94 Save $16.50

SKU: CGSC5331-051

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Description

The Cometic C5331-051 Cylinder Head Gasket is engineered for Chevrolet Mark-IV Big Block V8 applications, offering a .051-inch compressed thickness and a 4.630-inch bore diameter. MLS gaskets are ideal for sealing both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, capable of withstanding significant shearing forces. The three-layer design with valve pocketed bore shaping ensures a precise and durable seal, and it does not require sealants. This particular gasket is made from stainless steel, a common material in MLS construction known for its durability and temperature resistance.

MIA's Description

The Cometic C5331-051 is a cylinder head gasket designed for Chevrolet Mark-IV Big Block V8 engines. It features a Multi-Layer Steel (MLS) construction for reliable sealing performance.

This gasket has a compressed thickness of .051 inches and a bore size of 4.630 inches, with valve pocketed bore shaping. It is a three-layer design and does not have a specific orientation requirement.

Fitment

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Specifications

BrandCometic
Part NumberCGSC5331-051
CategoryGaskets and Seals

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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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