Cometic Engine Gaskets

Now you can have race-proven performance on your daily driver! Founded in 1989, Cometic Gasket is a leading worldwide supplier of short-run and custom gaskets for the...

Now you can have race-proven performance on your daily driver! Founded in 1989, Cometic Gasket is a leading worldwide supplier of short-run and custom gaskets for the motorsports market. To ensure maximum performance for various engine types and sizes, Cometic manufactures gaskets in a wide range of materials, including Multi-Layered Steel (MLS) and Aramid Fiber. The gaskets are rigorously tested in the most demanding driving conditions and have proven themselves on NHRA/IHRA and NASCAR tracks nationwide. Whether you’re sealing a street/strip machine or daily driver, Cometic Gasket will give you maximum performance.

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Cometic MLS Marine Head Gaskets C5641-051

Cometic MLS Marine Head Gaskets C5641-051

Head Gasket, 4.600 in. Bore, .051 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5641-051

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Cometic MLS Marine Head Gaskets C5641-040

Head Gasket, MLS, Marine, 4.600 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5641-040

Not Yet Reviewed

Estimated Ship Date: Today

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Cometic MLS Head Gaskets C5645-027

Head Gaskets, 4.040 in. Bore, .027 in. Compressed Thickness, Chevy, Small Block, Each

Part Number: CGT-C5645-027

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Head Gasket, Marine, MLS, 4.580 in. Bore, 0.051 in. Thickness, Chevy, Each

Part Number: CGT-C5640-051

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Head Gaskets C5645-036

.036" MLS W/VALVE POCKETS

Part Number: CGT-C5645-036

Not Yet Reviewed

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Cometic MLS Head Gaskets C5645-051

Head Gasket, MLS, 4.040 in. Bore, .051 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5645051

Not Yet Reviewed

Estimated Ship Date: Today

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Cometic MLS Head Gaskets C5646-040

Head Gasket, MLS, 4.100 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5646-040

Not Yet Reviewed

Estimated Ship Date: Today

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Cometic MLS Head Gaskets C5646-030

Head Gasket, MLS, 4.100 in. Bore, .030 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5646-030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Marine Head Gaskets C5641-060

Head Gaskets, MLS Marine, 4.600 in. Bore, Chevrolet, Big Block, Designed To Fit Mercury Marine 1050 Gen IV with 2-bolt Intake Side of Gasket, Each

Part Number: CGT-C5641-060

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Head Gaskets C5645-030

.030" MLS W/VALVE POCKETS

Part Number: CGT-C5645-030

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Head Gaskets C5645-045

Head Gasket, MLS, 4.040 in. Bore, .045 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5645-045

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Marine Head Gaskets C5641-027

Head Gasket, MLS, 4.600 in. Bore, .027 in. Compressed Thickness, Mercury Marine, Each

Part Number: CGT-C5641-027

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Marine Head Gaskets C5641-070

Head Gaskets, MLS Marine, 4.600 in. Bore, Chevrolet, Big Block, Designed To Fit Mercury Marine 1050 Gen IV with 2-bolt Intake Side of Gasket, Each

Part Number: CGT-C5641-070

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Marine Head Gaskets C5640-040

Head Gasket, Marine, 4.580 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5640-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic AFM Fuel Pump Gaskets C5642-031

Gasket, Fuel Pump, Aramid Fiber, Chrysler, Dodge, Plymouth, V8, Each

Part Number: CGT-C5642-031

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Cometic MLS Head Gaskets C5645-066

.066" MLS-5 W/VALVE POCKETS

Part Number: CGT-C5645-066

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Head Gaskets C5645-080

.080" MLS-5 W/VALVE POCKETS

Part Number: CGT-C5645-080

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Head Gaskets C5646-027

Head Gasket, MLS, 4.100 in. Bore, .027 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5646-027

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Head Gaskets C5646-056

Head Gasket, MLS, 4.100 in. Bore, .056 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5646-056

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Cometic MLS Marine Head Gaskets C5641-036

.036" MLS W/2 BOLT INTAKE SIDE

Part Number: CGT-C5641-036

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

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