1981 Pistons & Piston Rings

Piston and Ring Kit, Hypereutectic, Dome, 4.280 in. Bore, Chevy, Big, Block, Kit

Part Number: UEM-KB257KTM-030

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Piston Rings, Original Standard Piston Ring Sets, Cast Iron, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: MAH-50564CP040

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Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.280 in. Bore, 4.250 in. Stroke, Dome, Chevy, Big Block, Set of 8

Part Number: UEM-IC603KTD-030

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Estimated Ship Date: Feb 5, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, Flat, 3.736 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB143KTM-STD

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Estimated Ship Date: Feb 5, 2026 if ordered today

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Pistons, Hypereutectic, Flat, 4.020 in. Bore, Ford, SBF, Set of 8

Part Number: SUM-17302C-20

1.0 out of 5 stars ( 1 )

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Piston and Ring Kit, Hypereutectic, Dome, 4.250 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB257KTM-STD

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.320 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-2M683070

5.0 out of 5 stars ( 2 )

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Piston, Hypereutectic, Flat, 4.030 in. Bore, 3.75 in. Stroke, 5/64 in., 5/64 in., 3/16 in. Rings, Chevy, Each

Part Number: SLP-WH860CP30

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Pistons, SX-Series, Forged, Dish, 4.040 in. Bore, Ford, Set of 8

Part Number: DMS-8763-4040

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.030 in. Bore, 1/16 in., 1/16 in., 1/8 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M8571030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Pistons, Forged, Dish, 4.030 in. Bore, Ford, Set of 8

Part Number: TFS-51404111

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Pistons, Forged, Flat Top 2 Valve Reliefs, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, 302, Set of 8

Part Number: TFS-51404332

5.0 out of 5 stars ( 1 )

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Pistons, Forged, Dome, Single Valve Relief, 4.280 in. Bore, 4.000 in. Stroke, 6.135 in. Rod, 1.645 in. Compression, Chevy, Set of 8

Part Number: JEP-212135

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Piston Rings, Moly, 3.796 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 0.200 in. Deep Oil Ring Groove, 8-Cylinder, Set

Part Number: SLP-E-356K60

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Pistons, Hypereutectic, Dome, 4.310 in. Bore, Chevy, Set of 8

Part Number: UEM-KB257-060

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Pistons, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Set of 8

Part Number: UEM-9908HC-030

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Piston and Ring Kit, Forged, Flat, 4.290 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-IC780KTD-040

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Estimated Ship Date: Feb 6, 2026 if ordered today

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Pistons, Hypereutectic, Dome, 4.030 in. Bore, Chevy, Set of 8

Part Number: UEM-9910HC-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 5, 2026 if ordered today

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CH BB FT 4.500B/4.000S/6.535R/1.245CD

Part Number: DPP-12065

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Pistons, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Set of 8

Part Number: UEM-KB106-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 2, 2026 if ordered today

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Pistons, AutoTec SBF, 4.03, 4, Flat Top 6.58, 0.975, SBF 351M/401, Sold as a set of 8.

Part Number: PIS-1000773

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Pistons, Forged, 4.030 in. Bore, 4.000 in. Stroke, Flat Top, 6.200 in. Rod Length, 0.927 in. Pin Diameter, SBF, 351W 20 degree, Ford, Set of 8

Part Number: PIS-1000463

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Pistons, Hypereutectic, Dome, 4.250 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB207-STD

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Estimated Ship Date: Feb 5, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, Step Dish, 4.030 in. Bore, Ford, Small Block, Kit

Part Number: UEM-KB366KTM-030

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.125 in. Bore, Ford, Kit

Part Number: MLE-930244825

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