CHEVROLET Chevy big block Mark IV Engines & Components

Pistons, Forged, Dome, 2-Valve Reliefs, 4.280 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-139831

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.350 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-139834

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.350 in. Bore, 4.000 in. Stroke, 6.535 in. Rod, 1.245 in. Compression, Chevy, Set of 8

Part Number: JEP-139838

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pistons, Forged, Dome, Single Valve Relief, 4.500 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Set of 8

Part Number: JEP-140341

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Pistons, Forged, Dish, Single Valve Relief, 4.500 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-181553

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.375 in. Bore, 4.000 in. Stroke, 6.385 in. Rod, 1.395 in. Compression, Chevy, Set of 8

Part Number: JEP-258254-8

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.350 in. Bore, 4.000 in. Stroke, 6.385 in. Rod, 1.395 in. Compression, Chevy, Set of 8

Part Number: JEP-258259-8

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Pistons, Forged, Dish, Single Valve Relief, 4.310 in. Bore, 4.250 in. Stroke, 6.383 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-338172

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Pistons, Forged, Dome, Single Valve Relief, 4.600 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Set of 8

Part Number: JEP-345654

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Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.375 in. Bore, 4.000 in. Stroke, Dome, Chevy, Big Block, Set of 8

Part Number: UEM-IC600KTD-125

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Pistons, Professional Series, Forged Dome, 4.600 in. Bore, Chevy, Set of 8

Part Number: WIS-K493B100

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Pistons, Professional Series, Forged Dish, 4.600 in. Bore, Chevy, 7.4L, 8.2L, Set of 8

Part Number: WIS-K496B100

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Pistons, Forged, Q16, Dome, 4.560 in. Bore, .043 in., .043 in., 3.0 mm. Ring Grooves, Chevy, Big Block, With Power Adder, Set of 8

Part Number: WIS-K0006B6

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Pistons, Professional, Q16, 2618 Forged Aluminum, Dome, 4.610 in. Bore, 4.500 in. Stroke, 6.385 in. Rod, Chevy, Big Block, Set of 8

Part Number: WIS-K0009B110

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Piston, Professional Series Quick 16, 24 Degree Head, 4.610 in. Bore, Forged Aluminum, Chevrolet, Big Block, Set of 8

Part Number: WIS-K0023B110

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Pistons, Forged, Dome, 4.600 in. Bore, Chevy, Set of 8

Part Number: WIS-K0025B100

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Pistons, Professional Series, 2618 Forged Aluminum, Dome, 4.625 in. Bore, 4.375 in. Stroke, 6.480 in. Rod, Chevrolet, Big Block, Set of 8

Part Number: WIS-K0159B125

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Piston and Ring Kit, Powerpack, Dome, Forged Aluminum, 4.600 in. Bore, 4.250 in. Stroke, Chevy, Set of 8

Part Number: MLE-928965301

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Piston and Ring Kit, PowerPak, 4.350 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, Domed, Forged, Chevrolet, Big Block, 454, Kit

Part Number: MLE-929906750

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Pistons, Powerpack, Elite Sportsman Drag Series, Dome, Forged Aluminum, 4.605 in. Bore, 4.375 in. Stroke, Chevy, Set of 8

Part Number: MLE-930239405

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Piston and Ring Kit, Powerpack, Dome, Forged Aluminum, 4.310 in. Bore, 4.00 in. Stroke, Chevy, Set of 8

Part Number: MLE-928909110

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Estimated Ship Date: Dec 26, 2025 if ordered today

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Piston and Ring Kit, Powerpack, Dome, Forged Aluminum, 4.280 in. Bore, 4.00 in. Stroke, Chevy, Set of 8

Part Number: MLE-928909180

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Crankshaft 4-454-4375-6635, Chevy Crankshaft Forged 4340 Strd Wgt 454 2-Piece Rear 4.375 Stroke 6.535 Length 2

Part Number: SCA-445428

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Crankshaft, 1-Piece Seal, Internal Balance, No Center Counterweights, Chevy, Big Block, Each

Part Number: SCA-445430L

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Connecting Rods, Forged 4340 Steel, Pro Sport H-Beam, 6.385 in. Length, ARP L19 Bolts, Chevrolet, Big Block Mark IV, Set of 8

Part Number: SCA-6638522L19

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Estimated Ship Date: Feb 13, 2026 if ordered today

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