CHEVROLET Chevy small block Gen III/IV (LS-based engines) Pistons & Piston Rings

Pistons, FHR Coated, Forged 4032 Aluminum, Flat Top with Two Reliefs, 3.903 in. Bore, 0.927 in. Wrist Pin, GM, LS, 5.7L, Set

Part Number: UEM-IC9989C-005

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Pistons, FHR Coated, Forged 4032 Aluminum, Flat Top with Two Reliefs, 3.785 in. Bore, 0.945 in. Wrist Pin, GM, LS, 4.8/5.3L, Set

Part Number: UEM-IC9985C-005

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Pistons, Hypereutectic, Dish, 101.85mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, V8, Set of 8

Part Number: UEM-3516HC-25MM

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 15, 2026 if ordered today

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Single Piston

Part Number: MAH-S2243729

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Piston - GM 5.3L (325) V8 99-02(599171-050MM W/P

Part Number: MAH-2243536050MM

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.005 in. Bore, 1.2mm, 1.5mm, 2.5mm Thickness, 8-Cylinder, Set

Part Number: HSN-2M5170005

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-110S274040-8

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Estimated Ship Date: Tomorrow

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-299S27400512

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Piston Rings, Plasma-moly, 3.819 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-2M4978040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Pistons and Rings, Forged, Dome, 4.005 in. Bore, Chevy, Kit

Part Number: WIS-K394X05

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Pistons and Rings, Forged, Dome, 4.125 in. Bore, Chevy, Kit

Part Number: WIS-K462X125

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Pistons and Rings, Forged Dish, 4.020 in. Bore, Chevy, Kit

Part Number: WIS-K394X2

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Pistons, Gas Nitrided Rings, Dished, 4.070 in. Bore, Chevy, Kit

Part Number: WIS-K445X7

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Pistons, Gas Nitrided Rings, Forged Flat, 4.070 in. Bore, Chevy, Kit

Part Number: WIS-K444X7

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Pistons, Hypereutectic, Chevy, GMC, 6.0 LS, Set of 8

Part Number: SLP-H1506CPA100M

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Estimated Ship Date: Tomorrow

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Piston, Forged, 2618 Aluminum, Flat, Chevy LS, Each

Part Number: WIS-6398RX7

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Piston and Ring Kit, Forged, Dome, 3.800 in. Bore, Chevy, Small Block LS, Kit

Part Number: WIS-K0041X2

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 29.00cc Dish, 4.070 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2925-4070

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 5.00cc Flat, 4.065 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2920-4065

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Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 6.00cc Dome, 4.155 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2942-4155

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 6.00cc Dome, 3.898 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2902-3898

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 5.00cc Flat, 4.185 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2920-4185

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 15.00cc Dish, 4.125 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2943-4125

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 15.00cc Dish, 4.165 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2943-4165

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 5.00cc Flat, 4.030 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2920-4030

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Estimated Ship Date: Dec 29, 2025 if ordered today

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