Summit Racing Pistons & Piston Rings

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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Estimated Ship Date: Monday 2/9/2026

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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 2/9/2026

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Forged Pro pistons For SB Chevy 327, 4.030 bore, 1.671 C.H., 3.25 in. stroke, 5.7rod, 0cc net volume dome. 11:1@58cc, 10.2@64cc, 9.8@67cc, 9.3@72cc.

Part Number: SUM-SBC327030

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Cast Iron, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-133-139-40

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/9/2026

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 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 3.780 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP378015

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/9/2026

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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 2/9/2026

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Pro LS 2618 Forged Piston, 4.075 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-326943407512

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/9/2026

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Pro LS 2618 Forged Piston, 4.000 bore, 1.110 C.H., 20cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.0 LY6 LQ4 LQ9, Set of 8

Part Number: SUM-110927400020

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP403064

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Estimated Ship Date: Monday 2/9/2026

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

Part Number: SUM-133-M139-30

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Monday 2/9/2026

Pistons, Forged, Flat, 4.000 in. Bore, Ford, Set of 8

Part Number: SUM-17370FC-00

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/9/2026

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Pistons, Hypereutectic, Dished, 4.040 in. Bore, Chevy, Set of 8

Part Number: SUM-17383C-40

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Estimated Ship Date: Monday 2/9/2026

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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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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Cast Iron, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-133-139-60

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/9/2026

Pistons, Forged Aluminum, Flat, 4.020 in. Bore, 1.115 in. Compression Height, 0.927 in. Pin, Chevy, LS, Set of 8

Part Number: SUM-17406C-20

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/9/2026

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Forged Pro pistons for SB Chevy 400 Long Rod, 4.155 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-SBC400030L

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Estimated Ship Date: Monday 2/9/2026

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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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Estimated Ship Date: Monday 2/9/2026

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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 )

Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.610 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP461043

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.155 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP415543

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP403012

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Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Moly, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-133-M139-60

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/9/2026

Pistons, Forged, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: SUM-17365FC-40

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/9/2026

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Piston Rings, Plasma-Moly, 4.155 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-134-CM553430

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/9/2026