GMC Cometic Engine Gaskets & Seals

Head Gasket, 3.910 in. Bore, .045 in. Compressed Thickness, Chevy, LS, 5.7, Each

Part Number: CGT-C5475-045

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

Part Number: CGT-C5331-030

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.160 in. Bore, .051 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5318-051

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.060 in. Bore, .030 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5751-030

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Head Gasket, MLS, 4.540 in. Bore, .045 in. Compressed Thickness, Chevy, 454, Each

Part Number: CGT-C5330-045

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.200 in. Bore, .032 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5249-032

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, Multi-layer Steel, 4.630 in. Bore, .075 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5331-075

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Head Gasket, MLS, 4.030 in. Bore, .060 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5399-060

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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BOTTOM END GSK KIT *NOTES, GM LS V8 4.8/5.3/5.7/6.0/6.2L

Part Number: CGT-PRO1036B

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

Part Number: CGT-C5329-027

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, Multi-Layer Steel, 4.630 in. Bore, 0.051 in. Compressed Thickness, Chevy, 396, 402, 427, 454

Part Number: CGT-C5434-051

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.100 in. Bore, .098 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-098

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Head Gasket, 3.910 in. Bore, .027 in. Compressed Thickness, Chevy, LS, 5.7, Each

Part Number: CGT-C5475-027

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

Part Number: CGT-C5489-027

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.100 in. Bore, .036 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-036

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.540 in. Bore, .027 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5333-027

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.200 in. Bore, .030 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5249-030

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gaskets, MLS, 4.185 in./106.30mm Bore, Round Shape, 0.040 in. Thick, Multi-Layer Stainless Steel, 18/23 Degree Heads, Chevy, 4.3-6.6L, Each

Part Number: CGT-C15528-040

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.125 in. Bore, .051 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5247-051

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.080 in. Bore, .036 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5474-036

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

Part Number: CGT-C5333051

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Head Gasket, MLS, 4.060 in. Bore, .070 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5245-070

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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Rear Main Seal, 2-piece Style, Viton®, Chevy, Big Block, Each

Part Number: CGT-C5682

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

Engine Gasket Set, Street Pro, Top-end set, 3.875 in. Bore, .058 in. Thick MLX Cylinder Head Gasket, GM, L83, Kit

Part Number: CGT-PRO1050T

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Estimated Ship Date: Monday 3/23/2026 if shipped by air

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