GMC Cometic Parts and Accessories

Valve Cover Gasket, 0.188 in. Thickness, Rubber/Steel Core, Oldsmobile, Oldsmobile V8, Each

Part Number: CGT-C15440

4.5 out of 5 stars ( 2 )

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

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 3/23/2026 if shipped by air

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 3/23/2026 if shipped by air

Exhaust Gaskets, Headers, Multi-Layer Steel, Round Port, Chevrolet, Big Block V8, Pair

Part Number: CGT-C5251-030

1.0 out of 5 stars ( 1 )

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

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 3/23/2026 if shipped by air

• Free Shipping

Head Gasket, MLS, 4.630 in. Bore, .056 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5331-056

Not Yet Reviewed

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

• Free Shipping

Head Gasket, Multi-layer Steel, 4.630 in. Bore, .066 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5331-066

5.0 out of 5 stars ( 1 )

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

• Free Shipping

Head Gasket, MLS, 4.100 in. Bore, .045 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-045

3.0 out of 5 stars ( 1 )

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

Head Gasket, 3.910 in. Bore, .051 in. Compressed Thickness, Chevy, LS, 5.7, Each

Part Number: CGT-C5475-051

5.0 out of 5 stars ( 1 )

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

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 3/23/2026 if shipped by air

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

Part Number: CGT-C5246-027

5.0 out of 5 stars ( 1 )

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

Head Gasket, MLS, 4.630 in. Bore, .040 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5434-040

5.0 out of 5 stars ( 3 )

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

Head Gasket, MLS, 4.540 in. Bore, .060 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5330-060

Not Yet Reviewed

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

• Free Shipping

Head Gasket, MLS, 4.200 in. Bore, .045 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5249-045

5.0 out of 5 stars ( 1 )

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

Head Gasket, MLS, Multi-layer Steel, 4.125 in. Bore, 0.023 in. Compressed Thickness, Round Bore Style, Buick, Chevy, GMC, Chevy Small Block, Each

Part Number: CGT-C5247-023

5.0 out of 5 stars ( 1 )

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

Head Gasket, MLS, 4.320 in. Bore, .027 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5817-027

Not Yet Reviewed

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

Head Gasket, MLS, 4.570 in. Bore, .040 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5433-040

5.0 out of 5 stars ( 1 )

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

Head Gasket, MLS, 4.375 in. Bore, .080 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5329-080

Not Yet Reviewed

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

• Free Shipping

Gasket, Manifold, Exhaust, Chevy, Small Block, Pair

Part Number: CGT-C5892-030

4.0 out of 5 stars ( 4 )

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

Head Gaskets, 4.630 in. Bore, .040 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5334-040

5.0 out of 5 stars ( 1 )

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

Head Gasket, 3.910 in. Bore, .060 in. Compressed Thickness, Chevy, LS, 5.7, Each

Part Number: CGT-C5475-060

5.0 out of 5 stars ( 1 )

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

• Free Shipping

Head Gasket, MLS, 4.030 in. Bore, .051 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5399-051

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, .032 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5269-032

5.0 out of 5 stars ( 1 )

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

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

Part Number: CGT-C5505-051

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 22, 2026 if ordered today

• Free Shipping

Valve Cover Gasket, 0.188 in. Thick, Rubber, Steel, Chevy, Big Block, Pair

Part Number: CGT-C5975-2

5.0 out of 5 stars ( 1 )

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