Availability
CHEVROLET 7.4L/454 Engine Gaskets & Seals
Head Gasket, Copper, 4.250 in. Bore, 0.050 in. Thickness, Chevy, Mark 4 Big Block, Each
Part Number: SCE-P132550
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Head Gaskets, Pro Copper, 4.250 in. Bore, 0.050 in. Compressed Thickness, No Water Passages, Chevrolet, Big Block Mark IV, Each
Part Number: SCE-P132550NW
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
CHEVROLET BB MK4 4.250 X .062 PRO COPPER HD GSKT NO WATER
Part Number: SCE-P132562NW
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Head Gaskets, Pro Copper, 4.250 in. Bore, 0.072 in. Compressed Thickness, Chevrolet, Big Block Mark IV, Each
Part Number: SCE-P132572
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Head Gasket, Copper, 4.250 in. Bore, 0.080 in. Thickness, Chevy, Mark 4 Big Block, Each
Part Number: SCE-P132580
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Head Gasket, Copper, 4.570 in. Bore, 0.093 in. Thickness, Chevy, Mark 4 Big Block, Each
Part Number: SCE-P135793
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Head Gasket, Copper, 4.630 in. Bore, 0.072 in. Thickness, Chevy, 7.4L, Each
Part Number: SCE-P146272
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Head Gaskets, Pro Copper, 4.630 in. Bore, 0.093 in. Compressed Thickness, O-ring of the Block or Heads Is Required, Chevrolet, 7.4L Gen V/Gen VI, Each
Part Number: SCE-P146293
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
HEAD GASKET, PRO COPPER,CHEVROLET BB AJPE 4.9 BC 4.52 0 X .043 PRO COPPER HD GSKT
Part Number: SCE-P155243
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Head Gaskets, Pro Copper, 4.440 in. Bore, 0.043 in. Compressed Thickness, Extra Bolt Hole In Valley Area, Chevrolet, 7.4L Gen V/Gen VI, Each
Part Number: SCE-P144443
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Head Gasket, Copper, 4.520 in. Bore, 0.032 in. Thickness, Chevy, 7.4L, Each
Part Number: SCE-P145232
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Intake Manifold Gaskets, AccuSeal Pro, Composite, Rectangular Port, Designed To Fit CFE BMF 405cc Cylinder Heads, Chevy, Big Block Mark IV, Set of 20
Part Number: SCE-213108-10
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Cover Gaskets, AccuSeal Pro, Laminated High-Temperature Silicone/Cork, Chevy, Big Block, Set of 10 Pairs
Part Number: SCE-213176-10
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Cover Gaskets, AccuSeal Pro, Composite, for Use with 3-bolt Top and 5-bolt Bottom Valve Covers, Chevrolet, Big Block, Pair
Part Number: SCE-213079
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Rear Main Seal, AccuSeal Pro, 2-Piece, Viton®, Dyno-Pak, Chevy, Big Block, Set of 10
Part Number: SCE-21355-10
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Cover Gaskets, AccuSeal Pro, Laminated High-temperature Silicone/Cork, Chevrolet, Big Block, Set of 10 Pairs
Part Number: SCE-218076-10
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Intake Manifold Gaskets, AccuSeal Pro, Composite, Cut To Fit Port, Chevrolet, Big Block Mark IV, Set of 20
Part Number: SCE-213100-10
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Intake Manifold Gaskets, AccuSeal Pro, Composite, Rectangular Port, Fits Brodix - 12 Series 15 degree Heads, Chevrolet, Big Block Mark IV, Pair
Part Number: SCE-213107
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Cover Gaskets, AccuSeal Pro, Laminated High-Temperature Silicone/Cork, Dart Big Chief, Brodix Big Duke, Early Pontiac Pro Stock Heads, Pair
Part Number: SCE-218176
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Valve Cover Gaskets, AccuSeal Pro, Laminated High-Temperature Silicone/Cork, Dart Big Chief, Brodix Big Duke, Early Pontiac Pro Stock Heads, 10 Pairs
Part Number: SCE-218176-10
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Intake Manifold Gaskets, AccuSeal Pro, Composite, Raised Oval Port, Designed To Fit LSX 454 DR Engines, Chevrolet, 7.4L LS, Pair
Part Number: SCE-219108
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Head Gasket, Copper, 4.440 in. Bore, 0.043 in. Thickness, Chevy, Mark 4 Big Block, Each
Part Number: SCE-P134443
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Oil Pan Gasket, AccuSeal E, 1-Piece, Nitrile, Butadiene, Chevy, V8, Set
Part Number: SCE-113092
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
HEAD GASKET, PRO COPPER,CHEVROLET BB SONNY BILLET 5.0 BC 4.700 X .050 PRO COPPER HD
Part Number: SCE-P407050B
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Head Gasket, Multi-Layer Steel, 4.320 in. Bore, 0.052 in. Compressed Thickness, Chevy, Big Block, Each
Part Number: CGT-C5816-052
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
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