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Forged Pro pistons for SB Chevy 400 Long Rod, 4.125 bore, 1.125 C.H., 3.75 in. stroke, 6 in. rod, 12cc Dish, 10.5@64cc, 10.2@67cc, 9.8@72cc.

Part Number: SUM-SBC400STDL

3.0 out of 5 stars ( 2 )

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Pistons, Hypereutectic, Flat, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-9911HC-STD

4.0 out of 5 stars ( 1 )

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Piston and Ring Kit, Power Pak, 4.125 in. Bore, 3.750 in. Stroke, 6.00 in. Rod, +16.00cc Dish, Forged, Chevrolet, 400 CID, Kit

Part Number: MLE-930210925

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

Piston Set, 400 SBC 3-FX Series -5cc Flat Top Piston Set. 4.125 bore

Part Number: DMS-3-2400-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

Piston Set, 400 SBC K1-FX Series -21cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-K1-2305-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

Pistons, Hypereutectic, Flat, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-9907HC-STD

5.0 out of 5 stars ( 1 )

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Piston Set, 400 SBC K2-FX Series -16cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-K2-2303-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Piston and Ring Kit, Claimer, Hypereutectic, Flat, 4.125 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-9911HCKTMSTD

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Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Pistons, Forged, 4.125 in. Bore, 3.750 in. Stroke, Flat Top, 6.125 in. Rod Length, 0.927 in. Pin Diameter, SBC 23 degree, Chevy, Set of 8

Part Number: PIS-1001031

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Estimated Ship Date: Jan 6, 2027 if ordered today

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Estimated Ship Date: Jan 6, 2027 if ordered today

Pistons, 23 Degree, Forged, Dome, 2-Valve Reliefs, 4.125 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Set of 8

Part Number: JEP-182058-8

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Estimated Ship Date: Nov 11, 2026 if ordered today

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Estimated Ship Date: Nov 11, 2026 if ordered today

-28cc Dish Top SBC 23 Degree Forged 2618

Part Number: DMS-K2-2306-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Piston Set, 400 SBC K1-FX Series -16cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-K1-2403-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Piston Set, 400 SBC SX Series -21cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-K8125-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Piston Set, 400 SBC SX Series -28cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-K8136-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Piston Set, 400 SBC 2-FX Series -21cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-2-2405-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Pistons, AutoTec SBC, 4.125, 3.75, Flat Top 6, 0.927, SBC 23°4.125, Sold as a set of 8.

Part Number: PIS-1000190

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Estimated Ship Date: Jan 6, 2027 if ordered today

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Piston Set, 400 SBC SX Series -16cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-8133-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

400 CHEVY SMALL BLOCK-5CC FLA

Part Number: DMS-8120-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

Piston Set, 400 SBC SX Series -5cc Flat Top Piston Set. 4.125 bore

Part Number: DMS-8130-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

Piston Set, 400 SBC SX Series -21cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-8125-4125

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

Pistons, Hypereutectic, Dish, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB168-STD

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Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Pistons, Hypereutectic, Dome, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB140-STD

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Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

Piston, Forged, Dish, D-Shaped Cup, 4.125 in. Bore, 3.750 in. Stroke, 5.700 in. Rod, 1.445 in. Compression, Chevy, Each

Part Number: JEP-232514-1

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Piston and Ring Kit, Hypereutectic, Flat, 4.125 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB128KTD-STD

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Pistons, AutoTec SBC, 4.125, 3.75, Flat Top 5.7, 0.927, SBC 23°4.125, Sold as a set of 8.

Part Number: PIS-1000186

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Estimated Ship Date: Jan 6, 2027 if ordered today

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Estimated Ship Date: Jan 6, 2027 if ordered today