1978 Gaskets & Seals - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ BBC Valve Cover Gaskets SUM-G2312

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

Part Number: SUM-G2312

3.8 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

Mahle Original Cylinder Head Gaskets 3978

Head Gaskets, Composite, 4.500 in. Bore, 0.040 in. Compressed Thickness, Ford, Lincoln, Mercury, Each

Part Number: MAH-3978

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 C5816-070

Cometic MLS Head Gaskets C5816-070

Head Gasket, 4.320 in. Bore, .070 in. Compressed Thickness, Chevy, 454, Each

Part Number: CGT-C5816-070

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Edelbrock Intake Manifold Gaskets 7225

Gaskets, Intake, Composite, 2.27 in. x 1.23 in. Port, .030 in. Thick, Mopar, 361/383/400/413/426, Pair

Part Number: EDL-7225

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

Sierra Marine Head Gaskets 18-3876

Head Gaskets, Marine Applications Only, Chevrolet, Small Block, Each

Part Number: RRA-18-3876

4.0 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

Cometic MLS Head Gaskets C5272-040

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

Part Number: CGT-C5272-040

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

Mr. Gasket Ultra-Seal Head Gaskets 5801G

Head Gasket; Ultra Seal; Head Gasket; Solid Steel Core; Laminated Outer Facing; 4.190 in. Gasket Bore; 0.038 i

Part Number: MRG-5801G

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

Yukon Gear & Axle Differential Cover Gaskets YCGGM8.5

Differential Cover Gasket, Cork, GM 8.2 in., GM 8.5 in., GM 8.6 in., Each

Part Number: YGA-23020

4.33 out of 5 stars ( 6 )

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 Performance Valve Cover Gaskets 1682

Valve Cover Gaskets, Composite with Steel Core, Ford, SVO Yates Head, Pair

Part Number: FEL-1682

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

Fel-Pro Conversion Set Gaskets CS 8553

Gaskets, Conversion Set, Chrysler, Dodge, Plymouth, 273, 318, 340, Set

Part Number: FEL-CS8553

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

Mahle Original Rear Main Seals JV618

Ford-Pass, Trk&Ind;Linc;Merc:370, 429, 460(68-94) Split Seal Option to JV730

Part Number: MAH-JV618

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

Mr. Gasket Transmission Pan Gaskets 51F01MRG

Transmission Pan Gasket, Silicone/Aluminum, Rubber Coated, Ford, C4, Each

Part Number: MRG-51F01MRG

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

Cometic MLS Head Gaskets C5769-027

Head Gasket, 4.200 in. Bore, .027 in. Compressed Thickness, Pontiac, 455, Each

Part Number: CGT-C5769-027

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

Trick Flow® by Cometic MLS Exhaust Gaskets TFS-30490931

Exhaust Gaskets, Header, Multi-Layer Steel, D-Port, Chevy, Small Block, Pair

Part Number: TFS-30490931

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

Mr. Gasket Header/Manifold Exhaust Gaskets 7166MRG

Exhaust Gaskets, Header, Copper, Stock Port, Mopar, Small Block, Pair

Part Number: MRG-7166MRG

3.0 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

SCE Titan Copper Head Gaskets T135243

Head Gaskets, Titan, Copper, 4.520 in. Bore, .043 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: SCE-T135243

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

Remflex Exhaust Header Gasket Sets 3039

Exhaust Header and Manifold Gaskets, Square Port, Graphite, Fits Heads with 3 in. Bolt Hole Spacings On Each Port, Ford, Small Block Windsor, Set

Part Number: RFL-3039

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

Mr. Gasket Ultra-Seal Head Gaskets 1134G

Head Gasket; Flexible Graphite Core; Elastomer Coated; 4.130 in. Bore, 0.028 in. Compressed Thickness, Each

Part Number: MRG-1134G

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

Dart Intake Manifold Gaskets 65123100

Intake Gasket, 2.500 in. x 1.750 in., Composite, Big Block Chevy, Each

Part Number: DRT-65123100

2.0 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

Brodix Cylinder Heads Intake Manifold Gaskets MG 2015

Gaskets, Manifold, Intake, Oval, Chevy, Big Block, PB 2005 14.5 Degree Heads, Each

Part Number: BRO-MG2015

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

Milodon Crushproof Premium Pan Gaskets 40500

Oil Pan Gasket, Multi-Piece, Composite, Ford, 429/460, V8, Kit

Part Number: MIL-40500

5.0 out of 5 stars ( 6 )

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

Remflex Exhaust Header Gasket Sets 2071

Header Gasket, Graphite, Square Port, GM, V8, Big Block, Pair

Part Number: RFL-2071

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 AccuSeal E Intake Gaskets 113116

Gaskets, Manifold, Intake, AccuSeal E, Rectangle, 2.50 in. x 1.80 in. Port, .125 in. Thick, Chevy, 396-454, Set

Part Number: SCE-113116

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 Titan Copper Head Gaskets T133843

Head Gaskets, Titan, Copper, 4.380 in. Bore, .043 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: SCE-T133843

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

Flatout Gaskets Copper Header Gaskets 7002C

Exhaust Gaskets, Header, Copper, Chevy, Small Block, Pair

Part Number: FOG-7002C

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