Pistons

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: Monday 4/13/2026 if shipped by air

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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

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Pistons, Forged, Flat, 4.040 in. Bore, 350 Chevy, Set of 8

Part Number: DMS-8700-4040

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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

Part Number: DMS-8705-4040

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Pistons, Forged, Flat, 4.040 in. Bore, 302 Ford, Set of 8

Part Number: DMS-8720-4040

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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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 4/13/2026 if shipped by air

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Pistons, E-Series, Forged, Flat, 4.040 in. Bore, Ford, Set of 8

Part Number: DMS-8750-4040

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Pro LS 2618 Forged Piston, 4.040 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-326945404012

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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

Part Number: DMS-8860-4040

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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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 4/13/2026 if shipped by air

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: Monday 4/13/2026 if shipped by air

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 4/13/2026 if shipped by air