Availability
Showing In Stock Items. Show All 25 Items.
Pistons, Forged, Flat, 4.040 in. Bore, 3.750 in. Stroke, 5.700 in. Rod Length, 383 Chevy, Set of 8
Part Number: DMS-8710-4040
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
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Pro LS 2618 Forged Piston, 4.040 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-2999274040-2
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pistons, E-Series, Forged, Flat, 4.040 in. Bore, Ford, Set of 8
Part Number: DMS-8750-4040
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pistons, E-Series, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8715-4040
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pistons, Forged, Flat, 4.040 in. Bore, 302 Ford, Set of 8
Part Number: DMS-8720-4040
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pistons, Forged, Flat, 4.040 in. Bore, 350 Chevy, Set of 8
Part Number: DMS-8700-4040
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Piston, SX-Series, Forged, Flat Top, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8130-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Pistons, E-Series, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8705-4040
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Piston, 4.040 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-3269434040-2
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Piston, SX-Series, Forged Flat Top, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8100-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Pro LS 2618 Forged Piston, 4.040 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-3269454040-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pistons, SX-Series, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8110-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Pistons, SX-Series, Forged, Flat, 4.040 in. Bore, Ford, Set of 8
Part Number: DMS-8860-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Pistons, E-Series, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8702-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
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-299S274040-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
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-326S454040-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pistons, SX-Series, Forged, Flat, 4.040 in. Bore, Ford, Set of 8
Part Number: DMS-8880-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Pistons, SX-Series, Forged, Flat, 4.040 in. Bore, Ford, Set of 8
Part Number: DMS-8870-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Pistons, Forged, Flat, 4.040 in. Bore, 351 Ford, Set of 8
Part Number: DMS-8720-4040W
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Piston, SX Series, Forged, Flat Top, 4.040 in. Bore, Ford, Set of 8
Part Number: DMS-8890-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Piston, SX-Series, Forged, Flat Top, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8120-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Pistons, SX-Series, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8140-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Piston, SX Series, Forged, Flat Top, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8190-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
Piston, SX Series, Forged, Flat Top, 4.040 in. Bore, Chevy, Set of 8
Part Number: DMS-8150-4040
Not Yet Reviewed
Estimated Ship Date: Jan 21, 2026 if ordered today
Estimated Ship Date: Jan 21, 2026 if ordered today
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Summit Racing™ Pro LS Forged Pistons SUM-2999274040-2
