Summit Racing Pistons & Piston Rings

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 10/20/2025

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

Part Number: SUM-133-M139-40

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/20/2025

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 10/20/2025

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 10/20/2025

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 )

Estimated Ship Date: Monday 10/20/2025

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

Part Number: SUM-134-CM553140

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/20/2025

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 10/20/2025

Piston Rings, Cast Iron, 4.250 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-133-683-00

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/20/2025

Piston, Pro LS, 4.000 in. Bore, Forged Aluminum, Flat Top, 0.927 Pin Diameter, Chevy, Each

Part Number: SUM-299S274000-2

Not Yet Reviewed

Estimated Ship Date: Dec 9, 2025 if ordered today

• Special Order

Piston, Pro LS, 3.785 in. Bore, Forged Aluminum, Dome, 0.927 Pin Diameter, Chevy, Each

Part Number: SUM-299S273785-2

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Piston, Pro LS, 3.780 in. Bore, Forged Aluminum, Dome, 0.927 Pin Diameter, Chevy, Each

Part Number: SUM-299S273780-2

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

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

Part Number: SUM-17360FC-30-1

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Special Order

Pro LS 2618 Forged Piston, 3.780 bore, 1.110 C.H., 5cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Each

Part Number: SUM-110S273780-5

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

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 10/20/2025

Piston, Pro LS, 4.065 in. Bore, Forged Aluminum, Dome, 0.943 Pin Diameter, Chevy, Each

Part Number: SUM-326S434065-2

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

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

Part Number: SUM-326S454000-2

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Piston Rings, Plasma-Moly, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-134-CM553400

Not Yet Reviewed

Estimated Ship Date: Oct 30, 2025 if ordered today

Piston, Pro LS, 4.030 in. Bore, Forged Aluminum, Flat Top, 0.943 Pin Diameter, Chevy, Each

Part Number: SUM-326S434030-2

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Piston, Pro LS, 3.780 in. Bore, Forged Aluminum, Dome, 0.943 Pin Diameter, Chevy, Each

Part Number: SUM-326S43780-2F

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Special Order

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 10/20/2025

SINGLE PISTON SUM-1109273903-5 EA.

Part Number: SUM-110S273S03-5

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Piston, Pro LS, 4.030 in. Bore, Forged Aluminum, Dish, 0.927 Pin Diameter, Chevy, Each

Part Number: SUM-110S274030-8

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Piston, Pro LS, 4.065 in. Bore, Forged Aluminum, Dish, 0.927 Pin Diameter, Chevy, Each

Part Number: SUM-110S274065-6

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Pro LS 2618 Forged Piston, 4.070 bore, 1.110 C.H., 6cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Each

Part Number: SUM-110S274070-6

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Piston, Pro LS, 4.030 in. Bore, Forged Aluminum, Dish, 0.927 Pin Diameter, Chevy, Each

Part Number: SUM-299S27403012

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025