Summit Racing Pistons & Piston Rings

Piston, Pro LS, 3.903 in. Bore, Forged Aluminum, Dish, 0.927 Pin Diameter, Chevy, Each

Part Number: SUM-299S273903-7

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Estimated Ship Date: Monday 10/6/2025

SINGLE PISTON SUM-326943406512 EA.

Part Number: SUM-326S43406512

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Estimated Ship Date: Monday 10/6/2025

Piston, Pro LS, 4.005 in. Bore, Forged Aluminum, Flat Top, 0.943 Pin Diameter, Chevy, Each

Part Number: SUM-326S434005-2

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Estimated Ship Date: Monday 10/6/2025

Piston, Pro LS, 4.040 in. Bore, Forged Aluminum, Flat Top, 0.945 Pin Diameter, Chevy, Each

Part Number: SUM-326S454040-2

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Estimated Ship Date: Monday 10/6/2025

Piston, Forged, Flat, 4.030 in. Bore, Ford, Each

Part Number: SUM-17370FC-30-1

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 3.189 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set, V8, Set

Part Number: SUM-GP8100XX

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 3.642 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set,

Part Number: SUM-GP9250XX

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Plasma-Moly, 4.165 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, One Cylinder, Each

Part Number: SUM-134CM5533401

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 4.530 in. Bore, File Fit, Gas Nitrided, 0.043 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP453046

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Estimated Ship Date: Monday 10/6/2025

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Piston Rings, Pro GPX Gas Ported, 3.465 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set, V8, Set

Part Number: SUM-GP8800XX

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Estimated Ship Date: Monday 10/6/2025

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 10/6/2025

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Piston, Forged Aluminum, Flat, 4.000 in. Bore, 1.304 in. Compression Height, 0.927 in. Pin, Chevy, LS, Each

Part Number: SUM-17407C-1

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Estimated Ship Date: Monday 10/6/2025

Forged Pro Pistons for SB Chevy 433, 4.155 bore, 1.000 C.H. , 4 in. stroke, 6 in. rod, 18cc volume, 11.2@58cc, 10.5@64cc, 10.25@67cc, 9.75@72cc

Part Number: SUM-SBC427030

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Estimated Ship Date: Monday 10/6/2025

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Piston Rings, Pro GPX Gas Ported, 3.907 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP390810

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Estimated Ship Date: Monday 10/6/2025

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Piston Rings, Pro GPX Gas Ported, 3.780 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP378012

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Estimated Ship Date: Monday 10/6/2025

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Piston Rings, Pro GPX Gas Ported, 3.796 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP379610

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Estimated Ship Date: Monday 10/6/2025

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Piston Rings, Pro GPX Gas Ported, 2.874 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set, V8, Set

Part Number: SUM-GP7300XX

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 3.199 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set, V8, Set

Part Number: SUM-GP8125XX

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 3.248 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set,

Part Number: SUM-GP8250XX

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 3.524 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set, V8, Set

Part Number: SUM-GP8950XX

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 3.622 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set, V8, Set

Part Number: SUM-GP9200XX

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 4.080 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP408010

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Estimated Ship Date: Monday 10/6/2025

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Piston Rings, Pro GPX Gas Ported, 4.090 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP409010

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Estimated Ship Date: Monday 10/6/2025

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Piston Rings, Pro GPX Gas Ported, 3.406 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set,

Part Number: SUM-GP8650XX

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Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 3.346 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set, V8, Set

Part Number: SUM-GP8500XX

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Estimated Ship Date: Monday 10/6/2025