Pistons, Rings, Wrist Pins, Bushings & More

Piston Rings, Plasma-moly, 4.040 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S8-40405

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Pistons, Pro Tru Street Pistons, 4.040 in. Bore, Forged, Flat Top, 1/16 in., 1/16 in., 3/16 in. Rings, Chevrolet, Kit

Part Number: WIS-PTS503A4

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP412515

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Forged Pro pistons BB Chevy 427, 4.310 bore, 1.765 C.H., 3.76 in. stroke, 6.135 in. rod, 27cc open/closed ch. Dome 10.5@110cc, 10.1@114cc, 9.7@119cc.

Part Number: SUM-BBC427060

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Piston Rings, Plasma-moly, 4.280 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S8-42805

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Forged Pro pistons for Chrysler 383, 4.280 bore, 1.920 C.H., 3.375 in. stroke, 6.358 rod, 4cc flat top. 9.5@75cc. 9.25@78cc, 8.75@84cc, 8.5:1@88cc.

Part Number: SUM-BBM383030

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Piston Rings, Pro GPX Gas Ported, 4.070 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP407012

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Piston Rings, Pro GPX Gas Ported, 4.155 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP415515

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

Part Number: WIS-PTS504A3

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Piston Rings, Ductile Plasma Iron Top, Ductile second, Std. Tension oil, File Fit for 4.155 in. bore 1.5mm, 1.5mm, 3.0mm, Set

Part Number: SUM-1362M8505035

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Pro LS 2618 Forged Piston, 4.070 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-326943407012

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Piston Rings, Gas Nitrided, 4.030 in. Bore, 1.2mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: JEP-JG31F840302

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Piston Rings, Pro GPX Gas Ported, 4.065 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP406512

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Pistons, Hypereutectic, Flat, 3.780 in. Bore, Chevy, 4.8L, 5.3L, Set of 8

Part Number: SLP-H1132CPA

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Forged Pro pistons BB Chevy 427, 4.280 bore, 1.765 C.H., 3.76 in. stroke, 6.135 in. rod, 27cc open/closed ch. Dome 10.5@110cc, 10.1@114cc, 9.7@119cc.

Part Number: SUM-BBC427030

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Piston Rings, Pro GPX Gas Ported, 4.375 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP437516

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP400015

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Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP403010

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Pistons, Pro Tru Street, Forged, Dish, 4.195 in. Bore, AMC, Jeep, 401, Set of 8

Part Number: WIS-PTS540A3

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Pistons, Hypereutectic, Dome, 4.280 in. Bore, Chevy, Set of 8

Part Number: SLP-H693CP30

4.7 out of 5 stars ( 10 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Piston Rings, Ductile Plasma Iron Top, Ductile second, Std. Tension oil, File Fit for 4.125 in. bore 1.5mm, 1.5mm, 3.0mm, Set

Part Number: SUM-1362M8505005

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Piston Rings, Pro GPX Gas Ported, 4.155 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP415516

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Piston Wrist Pins, H-13 Tool Steel, DLC Coated, 0.927 in. Diameter, 2.250 in. Length, 0.215 in. Wall Thickness, 135 grams, Each

Part Number: SUM-S720

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Piston, Pro Tru Street, 4.030 in. Bore, for 3.480 in. Stroke/6 in. Rod Length, Dish w/2 Reliefs, 1.26 in. CH, Forged Aluminum, Floating Wrist Pin,Each

Part Number: WIS-5509A3

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Piston Rings, Ductile Plasma Iron Top, Ductile second, Std. Tension oil, File Fit for 4.310 in. bore 1.5mm, 1.5mm, 3.0mm, Set

Part Number: SUM-1362M851065

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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