CHEVROLET Chevy small block Gen III/IV (LS-based engines) Engines & Components

Pro LS 2618 Forged Piston, 3.898 bore, 1.299 C.H., 7cc dish, Std. Stroke, 6.125 Full-floating Rod, NA/Boost/Nitrous, Coated, 5.7L LS1 LS6, Set of 8

Part Number: SUM-2999273898-7

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Harmonic Balancer, Super Damper, Internal Balance, Steel, Black, Chevy, LS, Each

Part Number: ATI-917345

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Estimated Ship Date: Monday 8/25/2025

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Rocker Arm, Direct Bolt-On, Full Roller, 1.7 Ratio, Aluminum, Purple, Chevy, LS1, LS2, LS6, Set of 16

Part Number: HRS-90097

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Cam and Lifter kit, Stage 3 Pro LS Truck Swap Cam, 222/232 112+5, .550/.550 Lift, 3-bolt, 4.8, 5.3, 5.7, 6.0, 6.2L Each

Part Number: SUM-K8713R1

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Pro LS 2618 Forged Pistons. 3.780 bore, 1.299 C.H., 2cc dome, Std. Stroke, .6.125 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-2999273780-2

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 8/25/2025

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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

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Pro LS 2618 Forged Piston, 3.898 bore, 1.326 C.H., 3cc mini dome, Std. Stroke, Gen. 3 Press-fit Rod, NA/Boost/Nitrous, Coated, 5.7L LS1 LS6, Set of 8

Part Number: SUM-3269453898-3

5.0 out of 5 stars ( 2 )

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Pro LS 2618 Forged Piston, 4.040 bore, 1.299 C.H., 2cc Flat, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9, Set of 8

Part Number: SUM-2999274040-2

5.0 out of 5 stars ( 1 )

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Pro LS 2618 Forged Pistons. 3.780 bore, 1.299 C.H., 7cc dish, Std. Stroke, .6.125 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-2999273780-7

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Pro LS 2618 Forged Piston, 4.065 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-3269434065-2

5.0 out of 5 stars ( 1 )

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Connecting Rods, 4340, H-Beam, 12-Point, 6.275 in. Length, 0.945 in. Pin, ARP2000 Bolts, Chevy GM, LS/LSX, Gen III/IV, Set of 8

Part Number: SUM-LS6275945

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Pro LS 2618 Forged Piston, 4.000 bore, 1.299 C.H., 12cc Dish, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9,Set of 8

Part Number: SUM-299927400012

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Pro LS 2618 Forged Pistons. 3.780 bore, 1.326 C.H., 2cc dome, Std. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Coated, 4.8L 5.3L Vortec Truck

Part Number: SUM-326945780-2P

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 275/288, Lift .600/.600, Chevy GM, LS/LSX, Gen III/IV, Each

Part Number: SUM-8707-1DS

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Pro LS 2618 Forged Piston, 4.065 bore, 1.299 C.H., 2cc Dome, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2L LS3 L92 LS9, Set of 8

Part Number: SUM-2999274065-2

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Black, Chevy/Pontiac, 6.2L, Each

Part Number: ATI-918635

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Connecting Rods, Performance, I-beam Style, Forged 4340 Steel, 6.125 in. Length Center To Center, Chevy GM, LS/LSX, Gen III/IV, Set of 8

Part Number: SUM-LS6125927I

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Pro LS 2618 Forged Pistons. 3.810 bore, 1.299 C.H., 2cc dome, Std. Stroke, .6.125 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-2999273810-2

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Harmonic Balancer, Super Damper, Internal Balance, Steel, Black, Chevy, Pontiac, 5.7L, Each

Part Number: ATI-918853

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/25/2025

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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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Pro LS 2618 Forged Piston, 4.005 bore, 1.299 C.H., 12cc Dish, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9,Set of 8

Part Number: SUM-299927400512

5.0 out of 5 stars ( 1 )

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Cam and Lifter kit, Camshaft, Stage 2, LS Truck Swap Cam, High lift version, 218/227 112+2, .600/.600 Lift, 3-bolt, LS1 LS2 LS6 LS3 LQ4 LY6 LQ9 Each

Part Number: SUM-K8720R1

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Pro LS 2618 Forged Piston, 3.898 bore, 1.299 C.H., 3cc mini dome, Std. Stroke, 6.125 Full-float Rod, NA/Boost/Nitrous, Coated, 5.7L LS1 LS6, Set of 8

Part Number: SUM-2999273898-3

5.0 out of 5 stars ( 1 )

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Rocker Arms, Shaft Mount, Steel, 1.7 Ratio, Chevy, LS, Kit

Part Number: CCA-1982-16

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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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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