Summit Racing Pistons & Piston Rings

Piston, Pro LS, 4.000 in. Bore, Forged Aluminum, Flat Top, 0.945 Pin Diameter, Chevy, Each

Part Number: SUM-326S454000-2

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Estimated Ship Date: Monday 9/8/2025

Pro LS 2618 Forged Piston, 4.075 bore, 1.110 C.H., 21cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-110927407521

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Estimated Ship Date: Monday 9/8/2025

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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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Forged Pro pistons for Chrysler 440, 4.350 bore, 2.065 C.H., 3.75 in. stroke, 6.76 in. rod, 8cc flat top. 10.75@75cc, 10.5@78cc, 9.9@84cc, 9.5@88cc.

Part Number: SUM-BBM440030

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Pro LS 2618 Forged Piston, 4.080 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-299927408012

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Forged Pro pistons for 383 Stroker Chevy, 4.030 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-SBC383030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/8/2025

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Forged Pro pistons for 351W Stroker, 4.040 bore, 1.280 C.H., 4 in. stroke, 6.200 in. rod, 18cc dish Inline and Twisted Wedge, 10.5@60cc, 10.2@64cc.

Part Number: SUM-SBF408040

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Forged Pro pistons for SB Chevy 400 Long Rod, 4.165 bore, 1.125 C.H., 3.75 in. stroke, 6 in. rod, 12cc Dish, 10.5@64cc, 10.2@67cc, 9.8@72cc.

Part Number: SUM-SBC40040L

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/8/2025

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Forged Pro pistons for SB Chevy 350 Long Rod, 4.060 bore, 1.260 C.H., 3.48 in. stroke, 6 in. rod, 5cc flat top 10.2@64cc, 9.9@67cc, 9.4@72.

Part Number: SUM-SBC350060L

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Forged Pro pistons for 351W Stroker, 4.030 bore, 1.280 C.H., 4 in. stroke, 6.200 in. rod, 18cc dish Inline and Twisted Wedge, 10.5@60cc, 10.2@64cc.

Part Number: SUM-SBF408030

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Forged Pro pistons 347 stroker Windsor, 4.030 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-SBF347030

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Piston Rings, Pro GPX Gas Ported, 4.060 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP406012

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Estimated Ship Date: Monday 9/8/2025

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Piston Rings, Pro HEMI, 4.085 in. bore, File-fit 1.2mm Nitride Steel Top, 1.2mm Ductile Second, 3.0mm Std. Tension Oil, 8 Cylinders, Set

Part Number: SUM-408512

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Estimated Ship Date: Monday 9/8/2025

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Piston Rings, Pro HEMI, 3.927 in. bore, File-fit 1.2mm Nitride Steel Top, 1.2mm Ductile Second, 3.0mm Std. Tension Oil, 8 Cylinders, Set

Part Number: SUM-392712

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Piston Rings, Pro GPX Gas Ported, 4.500 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP450015

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Estimated Ship Date: Monday 9/8/2025

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

Part Number: SUM-134-CM553100

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/8/2025

Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP403013

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Piston Rings, Pro GPX Gas Ported, 4.075 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP407515

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Piston Rings, Pro GPX Gas Ported, 4.165 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP416543

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Estimated Ship Date: Monday 9/8/2025

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Piston Rings, Pro GPX Gas Ported, 4.165 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP416564

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Estimated Ship Date: Oct 30, 2025 if ordered today

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Piston Rings, Pro GPX Gas Ported, 4.250 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP425016

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Piston Rings, Pro GPX Gas Ported, 4.625 in. Bore, File Fit, Gas Nitrided, 0.043 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP462546

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Piston Rings, Pro HEMI, 4.055 in. bore, File-fit 1.2mm Nitride Steel Top, 1.2mm Ductile Second, 3.0mm Std. Tension Oil, 8 Cylinders, Set

Part Number: SUM-405512

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

Part Number: SUM-S719

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/8/2025

Forged Pro pistons for BB Chevy 540, 4.500 bore, 1.120 C.H., 4.25 in. stroke, 6.535 in. rod, 40cc Dome open chamber only, 13.7:1@114cc, 13:1@119cc.

Part Number: SUM-BBC540STD40

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Estimated Ship Date: Monday 9/8/2025

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