Summit Racing Pistons & Piston Rings

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-110S27403020

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Estimated Ship Date: Monday 2/9/2026

Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP404012

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Estimated Ship Date: Monday 2/9/2026

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Pro LS 2618 Forged Piston, 3.820 bore, 1.110 C.H., 12cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-110927382012

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Estimated Ship Date: Monday 2/9/2026

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Pro LS 2618 Forged Piston, 3.820 bore, 1.110 C.H., 5cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-1109273820-5

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Estimated Ship Date: Monday 2/9/2026

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Pro LS 2618 Forged Piston, 3.903 bore, 1.299 C.H., 7cc dish, Std. Stroke, 6.125 Full-floating Rod, NA/Boost/Nitrous, Coated, 5.7L LS1 LS6, Set of 8

Part Number: SUM-2999273903-7

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP404043

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.280 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP428016

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/9/2026

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Forged Pro pistons 347 stroker Windsor, 4.040 bore, 1.090 C.H., 3.4 in. stroke, 5.400 rod, 5cc flat top Inline and Twisted Wedge, 10.5@60cc, 10:1@64cc

Part Number: SUM-SBF347040

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Estimated Ship Date: Monday 2/9/2026

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Pro LS 2618 Forged Pistons. 3.820 bore, 1.299 C.H., 2cc dome, Std. Stroke, .6.125 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-2999273820-2

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Estimated Ship Date: Monday 2/9/2026

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Pro LS 2618 Forged Piston, 3.780 bore, 1.110 C.H., 5cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-1109273780-5

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Estimated Ship Date: Monday 2/9/2026

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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-326S434000-2

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Estimated Ship Date: Monday 2/9/2026

Piston Rings, Pro GPX Gas Ported, 4.100 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP410015

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.160 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP416016

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.130 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP413010

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 3.785 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP378515

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Estimated Ship Date: Monday 2/9/2026

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Pro GPX 85.5mm/3.366 Gas Ported Rings, Forged Honda B series pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP8550XX

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Estimated Ship Date: Monday 2/9/2026

Pistons, Hypereutectic, Flat, 4.020 in. Bore, Ford, SBF, Set of 8

Part Number: SUM-17302C-20

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.005 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP400512

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.060 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP406015

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.600 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP4600446

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Estimated Ship Date: Monday 2/9/2026

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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

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Estimated Ship Date: Monday 2/9/2026

Piston Rings, Cast Iron, 4.280 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-133-683-30

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/9/2026

Pro LS 2618 Forged Piston, 4.080 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-326943408012

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Estimated Ship Date: Monday 2/9/2026

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Forged Pro pistons for Chrysler 360, 4.030 bore, 1.670 C.H., 3.580 in. stroke, 6.123 in. rod, 7cc flat top 10.8@60cc, 10.4@63cc, 10.2@65cc, 9.4@73cc.

Part Number: SUM-SBM360030

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Estimated Ship Date: Monday 2/9/2026

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Forged Pro pistons for 383 Stroker Chevy, 4.040 bore, 1.425 C.H., 3.75 in. stroke, 5.7 in. rod, 9cc reverse dome 10.5@64cc, 10.1@67cc, 9.7@72cc.

Part Number: SUM-SBC383040

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Estimated Ship Date: Monday 2/9/2026

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