Pistons & Piston Rings

Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.030 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9045035

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.000 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9045005

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Piston, 4.065 bore, 1.110 C.H., 6cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-1109274065-6

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.065 in. bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9045065

3.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Pistons. 3.780 bore, 1.326 C.H., 2cc dome, Std. Stroke, .Gen.4 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-326943780-2F

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.005 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9045010

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/26/2026

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Pistons, Forged, Flat, 4.030 in. Bore, 302 Ford, Set of 8

Part Number: DMS-8720-4030

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.075 in. bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9045075

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.070 in. bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9045070

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Plasma Moly Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 3.810 in. Bore, 1.5mm, 1.5mm, 3.0mm, Set

Part Number: SUM-136SM8531035

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Piston, 4.070 bore, 1.110 C.H., 6cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-1109274070-6

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Piston, 4.065 bore, 1.326 C.H., 2cc Dome, Std. Stroke, Full Float Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2L LS3 L92 LS9, Set of 8

Part Number: SUM-3269434065-2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Pistons, Forged, Flat, 4.030 in. Bore, 350 Chevy, Set of 8

Part Number: DMS-8700-4030

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Piston, 4.065 bore, 1.326 C.H., 12cc Dish, Std. Stroke, Full Float Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-326943406512

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Piston, 4.075 bore, 1.326 C.H., 2cc Dome, Std. Stroke, Full Float Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2L LS3 L92 LS9, Set of 8

Part Number: SUM-3269434075-2

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Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Piston, 4.080 bore, 1.110 C.H., 6cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-1109274080-6

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Cast Iron, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-133-139-00

3.57 out of 5 stars ( 23 )

Estimated Ship Date: Monday 1/26/2026

Pistons, Dish, 12 Degree LS2K Series, Forged Aluminum, 4.125 in. Bore, -20.00cc Head Volume, Chevy, LSX, Set of 8

Part Number: DPP-21557-RS-8

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Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Piston, 4.070 bore, 1.326 C.H., 2cc Dome, Std. Stroke, Full Float Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2L LS3 L92 LS9, Set of 8

Part Number: SUM-3269434070-2

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP403015

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Piston, 4.075 bore, 1.110 C.H., 6cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-1109274075-6

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Pro LS 2618 Forged Piston, 4.065 bore, 1.299 C.H., 12cc Dish, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-299927406512

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.080 in. bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9045080

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Cast Iron, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-133-139-30

4.64 out of 5 stars ( 22 )

Estimated Ship Date: Monday 1/26/2026