Summit Racing Pistons & Piston Rings

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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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 )

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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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Forged Pro pistons BB Chevy 496, 4.280 bore, 1.270 C.H., 4.25 in. stroke, 6.385 in. rod, 15cc open/closed ch. Dome 10.5@110cc, 10.1@114cc, 9.7@119cc.

Part Number: SUM-BBC496030

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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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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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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

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Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP404016

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Estimated Ship Date: Jul 31, 2025 if ordered today

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

Part Number: SUM-134-CM553130

5.0 out of 5 stars ( 3 )

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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 )

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Piston Rings, Pro GPX Gas Ported, 4.600 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP460043

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Piston Rings, Plasma-Moly, 4.165 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-134-CM553440

3.5 out of 5 stars ( 2 )

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Piston Rings, Pro GPX Gas Ported, 4.010 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP401012

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Piston Rings, Pro GPX Gas Ported, 4.060 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP406016

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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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Piston Rings, Pro GPX Gas Ported, 4.440 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP444016

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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, Ductile Plasma Iron Top, Ductile second, Std. Tension oil, File Fit for 4.390 in. bore 1.5mm, 1.5mm, 3.0mm, Set

Part Number: SUM-1362M8520035

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Forged Pro pistons Olds 350, 4.087 bore, 1.612 C.H., 3.385 in. stroke, 6 in. rod, 0cc flat top, 10.5@68cc, 10.37@69cc, 10.25@70cc, 9.7@75cc, 9.3@79cc

Part Number: SUM-SBO350030

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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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Forged Pro pistons for SB Chevy 350 Long Rod, 4.030 bore, 1.260 C.H., 3.48 in. stroke, 6 in. rod, 5cc flat top 11:1@58cc, 10.2@64cc, 9.9@67cc, 9.4@72.

Part Number: SUM-SBC350030L

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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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Estimated Ship Date: Jul 29, 2025 if ordered today

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Piston Rings, Plasma Moly Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 3.820 in. Bore, 1.5mm, 1.5mm, 3.0mm, Set

Part Number: SUM-136SM8531045

5.0 out of 5 stars ( 1 )

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Piston Rings, Pro GPX Gas Ported, 4.165 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP416516

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Estimated Ship Date: Aug 29, 2025 if ordered today

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

Part Number: SUM-133-M139-00

4.5 out of 5 stars ( 6 )

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