Pistons - 4.320 in. Bore (in.) - 1.645 in. Compression Height (in.) - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

KB Performance Hyper Piston and Ring Kits KB202KTM.070

Piston and Ring Kit, Hypereutectic, Flat, 4.320 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB202KTM-070

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

ICON FHR Series Piston and Ring Kits IC9919KTM.070

Piston and Ring Kit, FHR Forged, Dome, 4.320 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-IC9919KTM070

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

KB Performance Pistons KB203.070

Pistons, Hypereutectic, Dome, 4.320 in. Bore, Chevy, Set of 8

Part Number: UEM-KB203-070

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

KB Performance Hyper Piston and Ring Kits KB207KTD.070

Piston and Ring Kit, Hypereutectic, Dome, 4.320 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB207KTD-070

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

ICON Premium Forged Piston and Ring Kits IC990KTD.070

Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.320 in. Bore, 4.000 in. Stroke, Dome, Chevy, Big Block, Set of 8

Part Number: UEM-IC990KTD-070

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

ICON FHR Series Piston and Ring Kits IC9920KTM.070

Piston and Ring Kit, FHR Forged, Flat, 4.320 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-IC9920KTM070

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

KB Performance Pistons KB257.070

Pistons, Hypereutectic, Dome, 4.320 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB257-070

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

Wiseco Professional Series Pistons 60240A7

Wiseco Professional Series Pistons 60240A7

Pistons, Professional Series, Forged Aluminum, Dome, 4.320 in. Bore, Stock/Stroked, Chevy, Big Block, Each

Part Number: WIS-60240A7

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Diamond Pistons Big Block 24/26 Degree Street/Strip Flat Top Series Pistons 12008

CH BB FT 4.320B/4.000S/6.135R/1.645CD

Part Number: DPP-12008

Not Yet Reviewed

Estimated Ship Date: Dec 30, 2025 if ordered today

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Estimated Ship Date: Dec 30, 2025 if ordered today

JE Pistons Big Block Open Chamber Dome Top Pistons 258278S

Piston, Forged, Dome, 2-Valve Reliefs, 4.320 in. Bore, 4.000 in. Stroke, 6.135 in. Rod, 1.645 in. Compression, Chevy, Each

Part Number: JEP-258278-1

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

JE Pistons Pistons 139479

Pistons, Forged, Flat Top, Single Valve Relief, 4.320 in. Bore, 4.000 in. Stroke, 6.135 in. Rod, 1.645 in. Compression, Chevy, Set of 8

Part Number: JEP-139479

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

JE Pistons Pistons 139532S

Piston, Forged, Dome, 2-Valve Reliefs, 4.320 in. Bore, 4.000 in. Stroke, 6.135 in. Rod, 1.645 in. Compression, Chevy, Each

Part Number: JEP-139532S

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

ICON Premium Forged Pistons IC780.070

Pistons, Forged, Flat, 4.320 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Big Block, Set of 8

Part Number: UEM-IC780-070

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

ICON Premium Forged Piston and Ring Kits IC782KTD.070

Piston and Ring Kit, Forged, Dome, 4.320 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-IC782KTD-070

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

ICON FHR Series Piston and Ring Kits IC9918KTM.070

Piston and Ring Kit, FHR Forged, Dome, 4.320 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-IC9918KTM070

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

ICON FHR Series Pistons IC9919.070

Pistons, Forged, Dome, 4.320 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Big Block, Set of 8

Part Number: UEM-IC9919-070

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

ICON FHR Series Pistons IC9920.070

Pistons, Forged, Flat, 4.320 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Big Block, Set of 8

Part Number: UEM-IC9920-070

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

ICON FHR Series Pistons IC9918.070

Pistons, Forged, Dome, 4.320 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Big Block, Set of 8

Part Number: UEM-IC9918-070

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

ICON Premium Forged Piston and Ring Kits IC780KTD.070

Piston and Ring Kit, Forged, Flat, 4.320 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-IC780KTD-070

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

ICON Premium Forged Piston and Ring Kits IC600KTD.070

Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.320 in. Bore, 4.000 in. Stroke, Dome, Chevy, Big Block, Set of 8

Part Number: UEM-IC600KTD-070

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

ICON Premium Forged Pistons IC600.070

Pistons, Premium Forged, Dome, 4.320 in. Bore, Chevy, Big Block, Set of 8

Part Number: UEM-IC600-070

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 Pistons 212137

Pistons, Forged, Dome, Single Valve Relief, 4.320 in. Bore, 4.000 in. Stroke, 6.135 in. Rod, 1.645 in. Compression, Chevy, Set of 8

Part Number: JEP-212137

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

JE Pistons Pistons 139479S

Piston, Forged, Flat Top, Single Valve Relief, 4.320 in. Bore, 4.000 in. Stroke, 6.135 in. Rod, 1.645 in. Compression, Chevy, Each

Part Number: JEP-139479S

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

JE Pistons Pistons 139532

Pistons, Forged, Dome, 2-Valve Reliefs, 4.320 in. Bore, 4.000 in. Stroke, 6.135 in. Rod, 1.645 in. Compression, Chevy, Set of 8

Part Number: JEP-139532

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

JE Pistons Pistons 338183

Pistons, Forged, Dome, Single Valve Relief, 4.320 in. Bore, 4.000 in. Stroke, 6.385 in. Rod, 1.645 in. Compression, Chevy, Set of 8

Part Number: JEP-338183

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today