Summit Racing Pistons & Piston Rings

Pro LS 2618 Forged Pistons. 3.785 bore, 1.326 C.H., 7cc dish, Std. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Coated, 4.8L 5.3L Vortec Truck

Part Number: SUM-326945785-7P

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Iron, 4.280 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-135-2M551930

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP400064

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Gas Nitride Steel Top, Ductile second, Std. Tension oil, File Fit for 4.155 in. bore 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9050030

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

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

Part Number: SUM-GP453016

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Plasma-Moly, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-134-CM553240

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 4.500 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP450016

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Pro HEMI, 4.090 in. bore, File-fit 1.2mm Nitride Steel Top, 1.2mm Ductile Second, 3.0mm Std. Tension Oil, 8 Cylinders, Set

Part Number: SUM-409012

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.560 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP456016

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP400016

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Each

Part Number: SUM-17351C-00-1

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/6/2025

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 10/6/2025

• Free Shipping

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 )

Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 4.280 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP428064

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Pro LS 2618 Forged Piston, 4.075 bore, 1.326 C.H., 2cc Dome, Std. Stroke, Full Float Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2L LS3 L92 LS9, Set of 8

Part Number: SUM-3269434075-2

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP403016

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.625 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP462543

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

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 )

Estimated Ship Date: Monday 10/6/2025

Piston Rings, Pro GPX Gas Ported, 3.898 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP389812

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.070 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP407015

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

• Free Shipping

Pro LS 2618 Forged Piston, 4.080 bore, 1.326 C.H., 2cc Dome, Std. Stroke, Full Float Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2L LS3 L92 LS9, Set of 8

Part Number: SUM-3269434080-2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

• Free Shipping