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

Pro LS 4340 Piston and Rod Kit, 364 Cid., 3.810 bore, 4.000 stroke, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.7:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR4081012

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Pro LS 4340 Piston and Rod Kit, 364 Cid., 3.810 bore, 4.000 stroke, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR408105

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Pro LS 4340 Piston and Rod Kit, 416 Cid., 4.070 bore, 4.000 stroke, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4007021

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Pro LS Piston and Rod Kit, 371 Cid., 4.040 bore, 3.622 stroke, 6.125 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L0402

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Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR369033

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Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.075 bore, 4.000 stroke, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400756

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Pro LS 4340 Piston and Rod Kit, 367 Cid., 3.820 bore, 4.000 stroke, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.8:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR4082012

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Pro LS 4340 Piston and Rod Kit, 367 Cid., 3.820 bore, 4.000 stroke, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR408205

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Pro LS 4340 Piston and Rod Kit, 382 Cid., 3.898 bore, 4.000 stroke, 6.125 rod, 16cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR4089816

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Pro LS 4340 Piston and Rod Kit, 383 Cid., 3.903 bore, 4.000 stroke, 6.125 rod, 16cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR4090316

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Pro LS 4340 Piston and Rod Kit, 383 Cid., 3.903 bore, 4.000 stroke, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR409035

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Pro LS 4340 Piston and Rod Kit, 408 Cid., 4.030 bore, 4.000 stroke, 6.125 rod, 8cc dish, 11.1:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400308

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Pro LS 4340 Piston and Rod Kit, 415 Cid., 4.065 bore, 4.000 stroke, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4006521

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Cylinder Head, 260cc LS3, CNC Ported, 6 Bolt, 70cc Chamber, 260cc Runner, 2.165 in. Intake , 1.600 in. Exhaust, 0.650 in. Max Lift, Chevy, Each

Part Number: HPE-HPLS3260

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Estimated Ship Date: Dec 9, 2025 if ordered today

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Piston, PowerPak Plus, 4.065 in. Bore, Flat Top with 2 Valve Reliefs, 0.945 in Pin, Includes File Fit Rings, Chevy, 6.2L, Kit

Part Number: MLE-197739265

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Piston, PowerPak Plus, 4.070 in. Bore, Flat Top with 2 Valve Reliefs, 0.945 in Pin, Includes File Fit Rings, Chevy, 6.2L, Kit

Part Number: MLE-197739270

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Piston, PowerPak Plus, 4.075 in. Bore, Flat Top with 2 Valve Reliefs, 0.945 in Pin, Includes File Fit Rings, Chevy, 6.2L, Kit

Part Number: MLE-197739275

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Piston and Ring Kit, Forged, Dish, 4.070 in. Bore, Chevy, LS, Kit

Part Number: MLE-197813870

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Piston and Ring Kit, Forged, Dish, 4.075 in. Bore, Chevy, LS, Kit

Part Number: MLE-197813875

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Piston and Ring Kit, Forged, Dish, 4.080 in. Bore, Chevy, LS, Kit

Part Number: MLE-197813880

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Piston and Ring Kit, Forged, Dome, 3.780 in. Bore, Chevy, LS, Kit

Part Number: MLE-930229880

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Piston and Ring Kit, Forged, Dome, 3.790 in. Bore, Chevy, LS, Kit

Part Number: MLE-930229890

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Crankshaft, 1-Piece Seal, Internal Balance, Forged 4340 Steel, 3.622 in. Stroke, Chevy, LS9, Each

Part Number: ESP-442536226100

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Crankshaft, 1-Piece Seal, Internal Balance, Forged 4340 Steel, 4.125 in. Stroke, Chevy, LS9, Each

Part Number: ESP-442541256100

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Crankshaft, 1-Piece Seal, Internal Balance, Forged 4340 Steel, 3.622 in. Stroke, Chevy, LS9, Each

Part Number: ESP-442636226100

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Estimated Ship Date: Oct 13, 2025 if ordered today

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