CHEVROLET K20 Engine Gaskets & Seals

Valve Cover Gaskets, Blue Rubber/Steel Core, 3/16 in. Thick, Perimeter Bolt, Big Block, Chevy, Pair

Part Number: PQX-4174851

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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 4/20/2026 if shipped by air

Head Gasket, MLS, 4.375 in. Bore, .051 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: CGT-C5329-051

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Head Gasket, Titan, Copper, 4.630 in. Bore, .043 in. Compressed Thickness, Chevrolet, Big Block MK IV, Each

Part Number: SCE-T136243

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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 4/20/2026 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 4/20/2026 if shipped by air

Engine Gasket Sets, Full, Chevy, Pontiac, L6, Kit

Part Number: FEL-260-1005

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Gasket, Neoprene, Water Outlet, Chevy, Big/Small Block, Each

Part Number: FEL-35562T

4.89 out of 5 stars ( 18 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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 4/20/2026 if shipped by air

• 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 4/20/2026 if shipped by air

Head Gasket, MLS, 4.125 in. Bore, .027 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5247-027

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Gaskets, Full Set, Chevy, 400, Small Block, Set

Part Number: FEL-FS8364PT3

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Gaskets, Intake, Composite, Rectangle Raised, 2.50 in. x 1.75 in. Port, .060 in. Thick, Chevy, 396-454, Set

Part Number: MRG-121

3.75 out of 5 stars ( 12 )

Estimated Ship Date: Monday 4/20/2026 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 4/20/2026 if shipped by air

Head Gaskets, Titan, Copper, 4.630 in. Bore, .080 in. Compressed Thickness, Chevy, Big Block, Each

Part Number: SCE-S136280

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

• Free Shipping

Gasket, Fuel Pump Mounting Plate, Composite, Each

Part Number: FEL-5182

4.92 out of 5 stars ( 37 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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

Part Number: CGT-C5329-027

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 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 4/20/2026 if shipped by air

• Free Shipping

Head Gasket, PermaTorque, Chevy, Small Block, 400, Each

Part Number: FEL-8364PT

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Water Pump Gaskets, AM General, Avanti, Bizzarrini, Buick, Cadillac, Checker, Chevy, Excalibur, GMC, Gordon-Keeble, ISO, Isuzu, Oldsmobile, Pair

Part Number: FEL-ES73030

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Valve Cover Gaskets, Ultra-Seal, Cork, Chevy, Big Block, Pair

Part Number: MRG-5863

4.79 out of 5 stars ( 19 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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 4/20/2026 if shipped by air

• Free Shipping

Head Gasket, MLS, 4.165 in. Bore, .045 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5248-045

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Rear Main Seal, 2-Piece, Viton®, Chevy, Big Block V8, Each

Part Number: SCE-21305

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Head Gasket, MLS, 4.060 in. Bore, .036 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5245-036

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air