1985 GMC Engine Gaskets & Seals Gaskets & Seals - Free Shipping on Orders Over $109 at Summit Racing

Cometic MLS Head Gaskets C5434-070

Cometic MLS Head Gaskets C5434-070

Head Gasket, MLS, 4.630 in. Bore, .070 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5434-070

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLS Head Gaskets C5432-030

Head Gasket, MLS, 4.310 in. Bore, .030 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5432-030

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLS Head Gaskets C5816-095

Head Gasket, MLS, 4.320 in. Bore, .095 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5816-095

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

SCE ICS Titan Copper Head Gaskets S111543

Head Gasket, Titan, Copper, 4.155 in. Bore, .043 in. Compressed Thickness, Chevrolet, Small Block, Each

Part Number: SCE-S111543

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

SCE Titan Copper Head Gaskets T136293

Head Gasket, Pro Copper, 4.630 in. Bore, .093 in. Compressed Thickness, Chevrolet, Each

Part Number: SCE-T136293

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLS Head Gaskets C5331-030

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 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Mr. Gasket Intake Gasket Sets 5817

Gaskets, Manifold, Intake, Ultra-Seal, 2.550 in. x 1.850 in. Raised Port, .060 in. Thick, Chevy, Big Block, Set

Part Number: MRG-5817

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLS Head Gaskets C5329-023

Head Gasket, MLS, 4.375 in. Bore, .023 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5329-023

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Edelbrock Valve Cover Gaskets 7580

Valve Cover Gaskets, Core Reinforced Composite, 0.310 in. Thick, Chevy, 7.4L, Pair

Part Number: EDL-7580

3.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLS Head Gaskets C5330-027

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

Part Number: CGT-C5330-027

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

SCE Titan Copper Head Gaskets T133243

Head Gasket, Titan, Copper, 4.320 in. Bore, .043 in. Compressed Thickness, Chevrolet, Big Block MK IV, Each

Part Number: SCE-T133243

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLX Head Gaskets C15575-040

.040" MLX HEAD GASKET

Part Number: CGT-C15575-040

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLS Head Gaskets C5245-070

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

Part Number: CGT-C5245-070

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

SCE Pro Copper Head Gaskets P135762

Head Gasket, Copper, 4.570 in. Bore, 0.062 in. Thickness, Chevy, Mark 4 Big Block, Each

Part Number: SCE-P135762

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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SCE AccuSeal Pro Water Pump Gaskets 21301

Water Pump Gaskets, AccuSeal Pro, Steel Core Composite, Chevy, Big Block Mark IV, Pair

Part Number: SCE-21301

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLS Head Gaskets C5474-036

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 3/2/2026 if shipped by air

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SCE Pro Copper Head Gaskets P112062

Head Gasket, Copper, 4.200 in. Bore, 0.062 in. Thickness, Chevy, Small Block, Each

Part Number: SCE-P112062

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Fel-Pro PermaDry Valve Cover Gaskets VS 50090 R

Valve Cover Gaskets, Rubber, Chevy, Big Block, Pair

Part Number: FEL-VS50090R

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic Rear Main Seals C5682

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

Part Number: CGT-C5682

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLX Head Gaskets C5031-040

Head Gasket, MLX, 4.165 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5031-040

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Cometic MLS Head Gaskets C5399-060

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 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Timken Timing Cover Seals 9845

Timing Cover Seal, Each

Part Number: TMK-9845

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Fel-Pro Thermostat Gaskets 35271

Thermostat Gasket

Part Number: FEL-35271

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

SCE ICS Titan Copper Head Gaskets S136243

Head Gaskets, Titan, Copper, 4.630 in. Bore, .043 in. Compressed Thickness, Chevy, 427/454, Each

Part Number: SCE-S136243

Not Yet Reviewed

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air

Mr. Gasket Valve Cover Gaskets 179

Valve Cover Gaskets, Cork/Rubber, Chevy, Small Block, Pair

Part Number: MRG-179

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

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Estimated Ship Date: Monday 3/2/2026 if shipped by air