Cometic Engine Gaskets

Chevrolet Mark-IV Big Block V8 Top End Gasket Kit, 4.375" Bore, .051" MLS Cylinder Head Gasket

Part Number: CGT-PRO1005T-051

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Exhaust Gaskets, Header, Round Port, Chevy, Big Block, Each

Part Number: CGT-EX157SPB030S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Gasket, Manifold, Intake, Chevy, Big Block, Pair

Part Number: CGT-C5821-051

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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MLS Manifold Set, .030-in. MLS EXH MANIFOLD SET , MERC MARINE 525/352 EFI

Part Number: CGT-C15364-030

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Head Gasket, Multi-layer Steel, 4.630 in. Bore, .051 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5331-051

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

Head Gasket, Multi-layer Steel, 4.630 in. Bore, .060 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5331-060

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Head Gasket, MLS, 4.165 in. Bore, .027 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5248-027

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

Head Gasket, MLX, Multi-Layer Stainless Steel, 4.560 in. Bore, 0.040 in. Compressed Thickness, Chevrolet, GMC, Chevy Big Block, Each

Part Number: CGT-C15561-040

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Head Gasket, MLS, 4.165 in. Bore, .051 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5248-051

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

Head Gasket, Multi-layer Steel, 4.630 in. Bore, .080 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5331-080

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

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Head Gasket, MLS, 4.030 in. Bore, .030 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5399-030

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Head Gasket, MLS, 4.200 in. Bore, .060 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5249-060

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Head Gasket, MLS, 4.030 in. Bore, .027 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5399-027

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

Head Gasket, Multi-layer Steel, 4.630 in. Bore, .045 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5331-045

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Head Gasket, MLS, 4.165 in. Bore, .060 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5248-060

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Head Gasket, MLS, 4.540 in. Bore, .051 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5330-051

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Head Gasket, MLS, 4.310 in. Bore, .027 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5432-027

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Head Gasket, MLS, 4.200 in. Bore, .027 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5249-027

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

Head Gasket, MLS, 4.375 in. Bore, .027 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5329-027

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Head Gasket, MLS, 4.165 in. Bore, .030 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5248-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Head Gasket, MLS, Multi-Layer Stainless Steel, 4.100 in. Bore, 0.023 in. Thickness, Chevy, Small Block, Each

Part Number: CGT-C5246-023

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

Head Gasket, Multi-layer Steel, 4.630 in. Bore, .030 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5331-030

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Head Gasket, MLS, 4.165 in. Bore, .080 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5248-080

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Head Gasket, MLS, Multi-layer Stainless Steel, 4.630 in. Bore, 0.095 in. Compressed Thickness, Chevrolet, Big Block, Each

Part Number: CGT-C5331-095

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Head Gasket, MLS, 4.200 in. Bore, .080 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5249-080

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

• Free Shipping