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Results 1 - 25 of 383

Pistons, Hypereutectic, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: SUM-17351C-40

3.86 out of 5 stars ( 7 )

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Pistons, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: SUM-17365FC-40

5.0 out of 5 stars ( 2 )

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Pistons, SX-Series, Forged, 15.00cc Dish, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-1923-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Forged Pro pistons for 383 Stroker Chevy, 4.040 bore, 1.425 C.H., 3.75 in. stroke, 5.7 in. rod, 9cc reverse dome 10.5@64cc, 10.1@67cc, 9.7@72cc.

Part Number: SUM-SBC383040

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Forged Pro pistons for 383 Stroker Chevy Long Rod, 4.040 bore, 1.125 C.H., 3.75 in. stroke, 6 in. rod, 9cc reverse dome 10.5@64cc, 10.1@67cc, 9.7@72cc

Part Number: SUM-SBC383040L

5.0 out of 5 stars ( 1 )

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Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 5.00cc Flat, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2920-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Pistons, Rings, SX-Series, Forged, 15.00cc Dish, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1923-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Piston Set, 506 Viper/SRT K2-FX Series -0cc No Valve Relief Flat Top Piston Set. 4.040 bore

Part Number: DMS-K2-6480-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston Set, 506 Viper/SRT K1-FX Series -0cc No Valve Relief Flat Top Piston Set. 4.040 bore

Part Number: DMS-K1-6480-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Pistons, Rings, FX-Series, Forged, 22.00cc Dish, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K2-2924-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Pistons, Rings, FX-Series, Forged, 6.00cc Dome, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K2-2832-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Pistons, Rings, FX-Series, Forged 4032, 10.00cc Dish, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1-2821-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Pistons, Rings, SX-Series, Forged, 5.00cc Flat, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1920-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Pistons, FX-Series, Forged 4032, 5.00cc Flat, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-1-2820-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Pistons, FX-Series, Forged 4032, 6.00cc Dome, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-1-2832-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Forged Pro pistons for SB Chevy 350, 4.040 bore, 1.560 C.H., 3.48 in. stroke, 5.7 in. rod, 5cc flat top 11:1@58cc, 10.2@64cc, 9.9@67cc, 9.4@72cc.

Part Number: SUM-SBC350040

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Piston, SX-Series, Forged, Dish Top, 4.040 in. Bore, Chevy, Set of 8

Part Number: DMS-8125-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Pistons, SX-Series, Forged, 5.00cc Flat, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-1920-4040

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Pistons, Rings, SX-Series, Forged, 5.00cc Flat, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1930-4040

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Pistons, Rings, SX-Series, Forged, 15.00cc Dish, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1823-4040

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Forged Pro pistons for SB Chevy 350 Long Rod, 4.040 bore, 1.260 C.H., 3.48 in. stroke, 6 in. rod, 5cc flat top 11:1@58cc, 10.2@64cc, 9.9@67cc, 9.4@72.

Part Number: SUM-SBC350040L

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Piston, Hypereutectic, Dome, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, 8, V6, Each

Part Number: UEM-S9905HC-040

Not Yet Reviewed

Estimated Ship Date: Mar 20, 2026 if ordered today

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Estimated Ship Date: Mar 20, 2026 if ordered today

Pistons, Hypereutectic, Dish, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, Set of 6

Part Number: UEM-3490HC-040

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Estimated Ship Date: Mar 20, 2026 if ordered today

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Estimated Ship Date: Mar 20, 2026 if ordered today

Pistons, Hypereutectic, Dish, 4.040 in. Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, GM, Set of 6

Part Number: UEM-3455H-040

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Estimated Ship Date: Mar 20, 2026 if ordered today

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Estimated Ship Date: Mar 20, 2026 if ordered today