CHEVROLET Chevy big block Mark IV Engines & Components

Pistons, Forged, Dome, 2-Valve Reliefs, 4.375 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Set of 8

Part Number: JEP-258215-8

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Pistons, Forged, Flat Top, Single Valve Relief, 4.310 in. Bore, 4.250 in. Stroke, 6.135 in. Rod, 1.520 in. Compression, Chevy, Set of 8

Part Number: JEP-257974-8

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.310 in. Bore, 3.760 in. Stroke, 6.135 in. Rod, 1.765 in. Compression, Chevy, Set of 8

Part Number: JEP-258288-8

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Pistons, Forged, Dish, Single Valve Relief, 4.560 in. Bore, 4.000 in. Stroke, 6.385 in. Rod, 1.395 in. Compression, Chevy, Set of 8

Part Number: JEP-257949-8

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Pistons, Forged, Flat Top, Single Valve Relief, 4.310 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-257964-8

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pistons, Forged, Flat Top, 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-257965-8

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.610 in. Bore, 4.375 in. Stroke, 6.535 in. Rod, 1.060 in. Compression, Chevy, Set of 8

Part Number: JEP-243328-8

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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, Dome, 2-Valve Reliefs, 4.530 in. Bore, 4.000 in. Stroke, 6.535 in. Rod, 1.245 in. Compression, Chevy, Set of 8

Part Number: JEP-330145-8

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.530 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Set of 8

Part Number: JEP-330163-8

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.560 in. Bore, 4.250 in. Stroke, 6.535 in. Rod, 1.120 in. Compression, Chevy, Set of 8

Part Number: JEP-330164-8

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.625 in. Bore, 4.375 in. Stroke, 6.535 in. Rod, 1.060 in. Compression, Chevy, Set of 8

Part Number: JEP-330125-8

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Pistons, Forged, Dome, 2-Valve Reliefs, 4.600 in. Bore, 4.375 in. Stroke, 6.385 in. Rod, 1.215 in. Compression, Chevy, Set of 8

Part Number: JEP-330141-8

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Pistons, Forged, Flat Top, 2-Valve Reliefs, 4.610 in. Bore, 4.750 in. Stroke, 6.660 in. Rod, 1.140 in. Compression, Chevy, Set of 8

Part Number: JEP-293519-8

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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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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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Crankshaft, Standard Weight, Forged 4340 Steel, 4.375 in. Stroke, Internal Balance, Chevy, 454, Each

Part Number: SCA-445426C

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Crankshaft, Standard Weight, Forged 4340 Steel, 4.500 in. Stroke, Internal Balance, Chevy, 454, Each

Part Number: SCA-445430C

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Estimated Ship Date: Feb 13, 2026 if ordered today

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