Pistons - 4.000 in. Bore (in.) - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ Pro LS Forged Pistons SUM-3269454000-2

Pro LS 2618 Forged Piston, 4.000 bore, 1.326 C.H., 2cc Flat, Std. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LQ4 LQ9,

Part Number: SUM-3269454000-2

4.67 out of 5 stars ( 3 )

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Summit Racing™ Pro LS Forged Pistons SUM-3269434000-2

Pro LS 2618 Forged Piston, 4.000 bore, 1.326 C.H., 2cc Flat, Std. Stroke, Full Float Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9, Set of 8

Part Number: SUM-3269434000-2

5.0 out of 5 stars ( 2 )

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Wiseco Pro Tru Street Pistons PTS523AS

Wiseco Pro Tru Street Pistons PTS523AS

Pistons, Pro Tru Street, Forged, Dome, 4.000 in. Bore, Chevy, 6.0L LS, Set of 8

Part Number: WIS-PTS523AS

5.0 out of 5 stars ( 1 )

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Summit Racing™ Pro LS Forged Pistons SUM-299927400012

Pro LS 2618 Forged Piston, 4.000 bore, 1.299 C.H., 12cc Dish, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9,Set of 8

Part Number: SUM-299927400012

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Summit Racing™ Coated Forged Pistons SUM-17407C

Pistons, Forged Aluminum, Flat, 4.000 in. Bore, 1.304 in. Compression Height, 0.927 in. Pin, Chevy, LS, Set of 8

Part Number: SUM-17407C

5.0 out of 5 stars ( 1 )

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Summit Racing™ Pro LS Forged Pistons SUM-326945400012

Pro LS 2618 Forged Piston, 4.000 bore, 1.326 C.H., 12cc dish, Std. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LQ4 LQ9,

Part Number: SUM-326945400012

5.0 out of 5 stars ( 1 )

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Summit Racing™ Pro LS Forged Pistons SUM-1109274000-8

Pro LS 2618 Forged Piston, 4.000 bore, 1.110 C.H., 8cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.0 LY6 LQ4 LQ9, Set of 8

Part Number: SUM-1109274000-8

5.0 out of 5 stars ( 2 )

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Summit Racing™ Pro LS Forged Pistons SUM-2999274000-2

Pro LS 2618 Forged Piston, 4.000 bore, 1.299 C.H., 2cc Flat, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9, Set of 8

Part Number: SUM-2999274000-2

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Summit Racing™ Pro LS Forged Pistons SUM-326943400012

Pro LS 2618 Forged Piston, 4.000 bore, 1.326 C.H., 12cc Dish, Std. Stroke, Full Float Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9,Set of 8

Part Number: SUM-326943400012

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Summit Racing™ Pro LS Forged Pistons SUM-110927400020

Pro LS 2618 Forged Piston, 4.000 bore, 1.110 C.H., 20cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.0 LY6 LQ4 LQ9, Set of 8

Part Number: SUM-110927400020

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Summit Racing™ Coated Forged Pistons SUM-17406C

Pistons, Forged Aluminum, Flat, 4.000 in. Bore, 1.115 in. Compression Height, 0.927 in. Pin, Chevy, LS, Set of 8

Part Number: SUM-17406C

5.0 out of 5 stars ( 2 )

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D.S.S. FX-Series Forged 4032 Alloy Pistons 1-3120-4000

Piston Set, Boss 347 Stroker SBF 289 - 302 1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.000 bore

Part Number: DMS-1-3120-4000

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Estimated Ship Date: Oct 7, 2025 if ordered today

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D.S.S. FX-Series Forged 2618 Alloy Pistons 2-2020-4000

Piston Set, 302 SBC 2-FX Series -5cc Flat Top Piston Set. 4.000 bore

Part Number: DMS-2-2020-4000

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Estimated Ship Date: Oct 7, 2025 if ordered today

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D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6350-4000

Piston Set, 360 Mopar 2-FX Series -3cc Small Block Mopar Flat Top Piston Set. 4.000 bore

Part Number: DMS-2-6350-4000

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Estimated Ship Date: Oct 7, 2025 if ordered today

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ICON Premium Forged Pistons IC733.STD

Pistons, Forged, Dome, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Small Block, Set of 8

Part Number: UEM-IC733-STD

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-3500-4000

Piston Set, 289 / 302 / 5.0 SBF 289 - 302 1-FX Series -4cc Flat Top inline Piston Set. 4.000 bore

Part Number: DMS-1-3500-4000

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KB Performance Pistons KB148.STD

Pistons, Hypereutectic, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB148-STD

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Estimated Ship Date: Oct 27, 2025 if ordered today

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ICON FHR Series Pistons for GM LS IC9992C.STD

Pistons, FHR Coated, Forged 4032 Aluminum, Flat Top with Two Reliefs, 4.000 in. Bore, 0.927 in. Wrist Pin, GM, LS, 6.0/6.2L, Set

Part Number: UEM-IC9992C-STD

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KB Performance Hyper Piston and Ring Kits KB115KTM.STD

Piston and Ring Kit, Hypereutectic, Flat, 4.000 in. Bore, Ford, Small Block, Kit

Part Number: UEM-KB115KTM-STD

5.0 out of 5 stars ( 1 )

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ICON Premium Forged Pistons IC801.STD

Pistons, Forged, Dome, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Small Block, Set of 8

Part Number: UEM-IC801-STD

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Estimated Ship Date: Oct 27, 2025 if ordered today

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D.S.S. FX-Series Forged 4032 Alloy Pistons 1-2005-4000C

Piston Set, 4.3 Chevy V6 1-FX Series -21cc Dish Top Piston Set. 4.000 bore

Part Number: DMS-1-2005-4000C

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Estimated Ship Date: Oct 7, 2025 if ordered today

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Summit Racing™ Forged Pro Pistons SUM-SBC350000

Forged Pro pistons for SB Chevy 350, 4.000 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-SBC350000

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D.S.S. SX-Series Forged Piston and Ring Kits K8123-4000

Piston Set, 383 SBC SX Series -16cc Dish Top Piston Set. 4.000 bore

Part Number: DMS-K8123-4000

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Estimated Ship Date: Oct 7, 2025 if ordered today

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D.S.S. SX-Series Forged Piston and Ring Kits K1833-4000

Pistons, Rings, SX-Series, Forged, 15.00cc Dish, 4.000 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1833-4000

Not Yet Reviewed

Estimated Ship Date: Oct 7, 2025 if ordered today

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D.S.S. SX-Series Forged Pistons 1830-4000

Pistons, SX-Series, Forged, 3.00cc Flat, 4.000 in. Bore, Chevy LS, Set of 8

Part Number: DMS-1830-4000

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today