Pistons - 4.040 in. Bore (in.) - 4.000 in. Stroke - 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-1109274040-8

Summit Racing™ Pro LS Forged Pistons SUM-1109274040-8

Pro LS 2618 Forged Piston, 4.040 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-1109274040-8

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Forged Pro Pistons SUM-360040STR

Forged Pro pistons for Chrysler 360 stroker, 4.040 bore, 1.465 C.H., 4 in. stroke, 6.123 in. rod, 15cc Dish 10.9@60cc, 10.5@63cc, 10.3@65cc, 9.6@73cc

Part Number: SUM-360040STR

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Mahle PowerPak Plus Piston and Ring Kits 930245140

Pistons, PowerPak Plus, Forged 2618 Aluminum, 4.040 in. Bore, Flat Top, Rings Included, Ford, Small Block, Set of 8

Part Number: MLE-930245140

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

KB Performance Pistons KB319.040

Pistons, Hypereutectic, Dish, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB319-040

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

D.S.S. SX-Series Forged Pistons 1920-4040

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

Part Number: DMS-1920-4040

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

D.S.S. E Series Forged Pistons 8763-4040

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

Part Number: DMS-8763-4040

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

ICON Premium Forged Piston and Ring Kits IC744KTD.040

Piston and Ring Kit, Forged, Flat, 4.040 in. Bore, Mopar, Small Block, Kit

Part Number: UEM-IC744KTD-040

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

D.S.S. E Series Forged Piston and Ring Kits K8763-4040

Piston Set, 408W /5.8 Stroker SBF 351W E Series -18cc Dish Top Inline Piston Set. 4.040 bore

Part Number: DMS-K8763-4040

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

D.S.S. FX-Series Forged Piston and Ring Kits with XR Wrist Pins K3-2920-4040

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

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-3722-4040

Piston Set, 408C / Boss Stroker SBF 351C K1-FX Series -18cc Dish Top Boss/Canted Piston Set. 4.040 bore

Part Number: DMS-K1-3722-4040

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Trick Flow® Forged Pistons TFS-51404330-40

Pistons, Forged, 4.040 in. Bore, Ford, Set of 8

Part Number: TFS-51404330-40

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Trick Flow® Forged Pistons TFS-51404331-40

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

Part Number: TFS-51404331-40

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

ICON Premium Forged Piston and Ring Kits IC750KTD.040

Piston and Ring Kit, Forged, Step Dish, 4.040 in. Bore, Ford, Small Block, Kit

Part Number: UEM-IC750KTD-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Summit Racing™ Forged Pro Pistons SUM-SBF408040

Forged Pro pistons for 351W Stroker, 4.040 bore, 1.280 C.H., 4 in. stroke, 6.200 in. rod, 18cc dish Inline and Twisted Wedge, 10.5@60cc, 10.2@64cc.

Part Number: SUM-SBF408040

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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KB Performance Hyper Piston and Ring Kits KB356KTM.040

Piston and Ring Kit, Hypereutectic, Step Head, 4.040 in. Bore, Mopar, Small Block, Kit

Part Number: UEM-KB356KTM-040

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

D.S.S. E Series Forged Pistons 8795-4040

Piston Set, 6.0 / LS2 / L98 / LQ9 Stroker LS E Series -5cc LS Flat Top Piston Set. 4.040 bore

Part Number: DMS-8795-4040

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

KB Performance Pistons KB320.040

Pistons, Hypereutectic, Flat, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB320-040

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Summit Racing™ Pro LS Forged Pistons SUM-110S274040-8

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

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-3366-4040

Piston Set, 408W /5.8 Stroker SBF 351W K3-FX Series +6cc Dome Top inline Piston Set. 4.040 bore

Part Number: DMS-K3-3366-4040

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-3720-4040C

-3cc Flat Top 351 Cleveland \ Boss Open & Closed Chamber Forged 2618

Part Number: DMS-K237204040C

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-3970-4040

Piston Set, 400M SBF 400M K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.040 bore

Part Number: DMS-K1-3970-4040

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-3372-4040

Piston Set, 408W /5.8 Clevor Stroker SBF 351W K1-FX Series -18cc Dish Top Boss/Canted Piston Set. 4.040 bore

Part Number: DMS-K1-3372-4040

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

D.S.S. FX-Series Forged Piston and Ring Kits K2-2924-4040

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

Part Number: DMS-K2-2924-4040

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Mahle PowerPak Piston and Ring Kits 930271140

Piston and Ring Kit, Forged, 4.040 in. Bore, Chrysler, Dodge, Plymouth, Kit

Part Number: MLE-930271140

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Mahle PowerPak Plus Piston and Ring Kits 930249340

Pistons, PowerPak Plus, Forged 2618 Aluminum, 4.040 in. Bore, Dish, Rings Included, Ford, Small Block, Set of 8

Part Number: MLE-930249340

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today