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JE Pistons

JE Pistons Big Block Nitrous Series Dome Top Pistons

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JE Pistons big block nitrous series dome top pistons have ring lands designed for nitrous applications. Valve reliefs are designed to accept oversized valves and long-duration, wide-lobe separation camshafts, and they are also compatible with angle milled heads. Precision CNC-machined grooves accept 1/16, 1/16, 3/16 rings. They fit open chamber cylinder heads.

Showing In Stock Items. Show All 14 Items.

Results 1 - 8 of 8

JE Pistons Big Block Nitrous Series Dome Top Pistons 258239

Made in the USA JE Pistons Big Block Nitrous Series Dome Top Pistons 258239

JE Pistons Big Block Nitrous Series Dome Top Pistons 258239

Pistons, Forged, Dome, 2-Valve Reliefs, 4.530 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-258239-8

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

JE Pistons Big Block Nitrous Series Dome Top Pistons 258240S

Made in the USA JE Pistons Big Block Nitrous Series Dome Top Pistons 258240S

JE Pistons Big Block Nitrous Series Dome Top Pistons 258240S

Piston, Forged, Dome, 2-Valve Reliefs, 4.560 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Each

Part Number: JEP-258240-1

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

JE Pistons Big Block Nitrous Series Dome Top Pistons 258239S

Made in the USA JE Pistons Big Block Nitrous Series Dome Top Pistons 258239S

JE Pistons Big Block Nitrous Series Dome Top Pistons 258239S

Piston, Forged, Dome, 2-Valve Reliefs, 4.530 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Each

Part Number: JEP-258239-1

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

JE Pistons Big Block Nitrous Series Dome Top Pistons 258239

JE Pistons Big Block Nitrous Series Dome Top Pistons 258239

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Estimated Ship Date: Today

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JE Pistons Big Block Nitrous Series Dome Top Pistons 258238S

Made in the USA JE Pistons Big Block Nitrous Series Dome Top Pistons 258238S

JE Pistons Big Block Nitrous Series Dome Top Pistons 258238S

Piston, Forged, Dome, 2-Valve Reliefs, 4.500 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Each

Part Number: JEP-258238-1

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

JE Pistons Big Block Nitrous Series Dome Top Pistons 258197S

Made in the USA JE Pistons Big Block Nitrous Series Dome Top Pistons 258197S

JE Pistons Big Block Nitrous Series Dome Top Pistons 258197S

Piston, Forged, Dome, 2-Valve Reliefs, 4.580 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Each

Part Number: JEP-258197-1

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

JE Pistons Big Block Nitrous Series Dome Top Pistons 258197

Made in the USA JE Pistons Big Block Nitrous Series Dome Top Pistons 258197

JE Pistons Big Block Nitrous Series Dome Top Pistons 258197

Pistons, Forged, Dome, 2-Valve Reliefs, 4.580 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Set of 8

Part Number: JEP-258197-8

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

JE Pistons Big Block Nitrous Series Dome Top Pistons 281920S

Made in the USA JE Pistons Big Block Nitrous Series Dome Top Pistons 281920S

JE Pistons Big Block Nitrous Series Dome Top Pistons 281920S

Piston, Forged, Dome, Single Valve Relief, 4.625 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Right. Each

Part Number: JEP-281920-1

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

JE Pistons Big Block Nitrous Series Dome Top Pistons 258241S

Made in the USA JE Pistons Big Block Nitrous Series Dome Top Pistons 258241S

JE Pistons Big Block Nitrous Series Dome Top Pistons 258241S

Piston, Forged, Dome, 2-Valve Reliefs, 4.600 in. Bore, 4.250 in. Stroke, 6.385 in. Rod, 1.270 in. Compression, Chevy, Each

Part Number: JEP-258241-1

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

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