Summit Racing™ Pro LS Forged Pistons

4.61 out of 5 stars 67 Customer Reviews

The Summit Racing Pro LS forged pistons are affordable and built to withstand the rigors of high boost and nitrous. These pistons are forged from Premium 2618 alloy

The Summit Racing Pro LS forged pistons are affordable and built to withstand the rigors of high boost and nitrous. These pistons are forged from Premium 2618 alloy - the strongest made. They have specially profiled piston skirts, which allow them to run a tight piston-to wall-clearance for maximum ring seal and minimal friction. They have many other high-tech features too! • Maximum ring-land thickness for power-adders • Dedicated forgings for the best strength-to-weight ratio • Multiple compression ratios specifically targeted for 4.8L, 5.3L, 5.7L, and 6.0L engines • Designed around Premium file fit rings with Gas-Nitride or Plasma steel tops and ductile Napier second rings • Available in versions for Gen. 3 Press-fit, Gen. 4 Floating, and Aftermarket 6.125 rods • Standard and Stroker versions available • Generous valve reliefs that work with both Cathedral port AND Rectangle port heads • Pressure-fed pin-oiling • Pressure seal groove in 2nd ring land for increased seal. • High-Speed brush deburring to remove sharp edges that cause detonation • Ultra-Modern 2.250 pin forgings clear the reluctor rings with stroker cranks • Durable Chromium Steel wristpins. • Replacement Singles Available

Results 1 - 25 of 32

Summit Racing™ Pro LS Forged Pistons SUM-1109274030-8

Summit Racing™ Pro LS Forged Pistons SUM-1109274030-8

Pistons, Pro LS 2618 Forged, 4.030 bore, 8cc dish, 4.000 in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.0 LY6 LQ4 LQ9, Set of 8

Part Number: SUM-1109274030-8

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Summit Racing™ Pro LS Forged Pistons SUM-110927403020

Pro LS 2618 Forged Piston, 4.030 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-110927403020

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Summit Racing™ Pro LS Forged Pistons SUM-1109274065-6

Pro LS 2618 Forged Piston, 4.065 bore, 1.110 C.H., 6cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-1109274065-6

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Summit Racing™ Pro LS Forged Pistons SUM-1109274040-8

Pro LS 2618 Forged Piston, 4.040 bore, 1.110 C.H., 8cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.0 LY6 LQ4 LQ9, Set of 8

Part Number: SUM-1109274040-8

4.5 out of 5 stars ( 2 )

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Summit Racing™ Pro LS Forged Pistons SUM-1109274000-8

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

Part Number: SUM-1109274000-8

5.0 out of 5 stars ( 2 )

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Summit Racing™ Pro LS Forged Pistons SUM-1109274005-8

Pro LS 2618 Forged Piston, 4.005 bore, 1.110 C.H., 8cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.0 LY6 LQ4 LQ9, Set of 8

Part Number: SUM-1109274005-8

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Summit Racing™ Pro LS Forged Pistons SUM-110927400020

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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Summit Racing™ Pro LS Forged Pistons SUM-1109273903-5

Pro LS 2618 Forged Piston, 3.903 bore, 1.110 C.H., 5cc dish, 4.000in. Stroke, 6.125 Full-float Rod, NA/Boost/Nitrous, Coated, 5.7L LS1 LS6, Set of 8

Part Number: SUM-1109273903-5

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Summit Racing™ Pro LS Forged Pistons SUM-110927407021

Pro LS 2618 Forged Piston, 4.070 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-110927407021

5.0 out of 5 stars ( 1 )

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Summit Racing™ Pro LS Forged Pistons SUM-1109274080-6

Pro LS 2618 Forged Piston, 4.080 bore, 1.110 C.H., 6cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-1109274080-6

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Summit Racing™ Pro LS Forged Pistons SUM-1109274075-6

Pro LS 2618 Forged Piston, 4.075 bore, 1.110 C.H., 6cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8

Part Number: SUM-1109274075-6

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Summit Racing™ Pro LS Forged Pistons SUM-1109273810-5

Pro LS 2618 Forged Piston, 3.810 bore, 1.110 C.H., 5cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-1109273810-5

4.0 out of 5 stars ( 1 )

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Summit Racing™ Pro LS Forged Pistons SUM-1109274070-6

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, Set of 8

Part Number: SUM-1109274070-6

5.0 out of 5 stars ( 2 )

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Summit Racing™ Pro LS Forged Pistons SUM-110927406521

Pro LS 2618 Forged Piston, 4.065 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-110927406521

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Summit Racing™ Pro LS Forged Pistons SUM-1109273820-5

Pro LS 2618 Forged Piston, 3.820 bore, 1.110 C.H., 5cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-1109273820-5

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Summit Racing™ Pro LS Forged Pistons SUM-1109273785-5

Pro LS 2618 Forged Piston, 3.785 bore, 1.110 C.H., 5cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-1109273785-5

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Summit Racing™ Pro LS Forged Pistons SUM-110S274065-6

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

Part Number: SUM-110S274065-6

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Summit Racing™ Pro LS Forged Pistons SUM-110927378512

Pro LS 2618 Forged Piston, 3.785 bore, 1.110 C.H., 12cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-110927378512

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Estimated Ship Date: Jul 15, 2025 if ordered today

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Estimated Ship Date: Jul 15, 2025 if ordered today

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Summit Racing™ Pro LS Forged Pistons SUM-2999273785-2

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Summit Racing™ Pro LS Forged Pistons SUM-110927412523

Pistons, Pro LS, 2618 Forged, 4.125 in. Bore, 6.125 in. Rod, 4.00 in. Stroke, 23cc Dish, 1.110 in. Compression Height, Chevrolet, LS, 7.0L, Set of 8

Part Number: SUM-110927412523

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Summit Racing™ Pro LS Forged Pistons SUM-110S274030-8

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

Part Number: SUM-110S274030-8

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Estimated Ship Date: Jul 7, 2025 if ordered today

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Estimated Ship Date: Jul 7, 2025 if ordered today

Summit Racing™ Pro LS Forged Pistons SUM-1109274125-4

Pistons, Pro LS, 2618 Forged, 4.125 in. Bore, 6.125 in. Rod, 4.00 in. Stroke, -4cc Dome, 1.110 in. Compression Height, Chevrolet, LS, 7.0L, Set of 8

Part Number: SUM-1109274125-4

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jul 14, 2025 if ordered today

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Estimated Ship Date: Jul 14, 2025 if ordered today

Summit Racing™ Pro LS Forged Pistons SUM-110927381012

Pro LS 2618 Forged Piston, 3.810 bore, 1.110 C.H., 12cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-110927381012

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Summit Racing™ Pro LS Forged Pistons SUM-110927400520

Pro LS 2618 Forged Piston, 4.005 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-110927400520

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Summit Racing™ Pro LS Forged Pistons SUM-1109274005-8

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Summit Racing™ Pro LS Forged Pistons SUM-110927407521

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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Summit Racing™ Pro LS Forged Pistons SUM-1109273780-5

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, Set of 8

Part Number: SUM-1109273780-5

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