Engine Rotating Kits

Pro LS 4340 Rotating Assembly, 410 Cid., 4.040 bore, 4.000 stroke, 24X, 6.125 rod, 8cc dish, 11.2:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R24400408

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Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Rotating Assembly, 416 Cid., 4.070 bore, 4.000 stroke, 24X, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244007021

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Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Rotating Assembly, 417 Cid., 4.075 bore, 4.000 stroke, 58x, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400756

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Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Rotating Assembly, 367 Cid., 3.820 bore, 4.000 stroke, 58x, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.8:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R584082012

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Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Rotating Assembly, 402 Cid., 4.000 bore, 4.000 stroke, 58x, 6.125 rod, 20cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R584000020

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Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Rotating Assembly, 403 Cid., 4.005 bore, 4.000 stroke, 58x, 6.125 rod, 8cc dish, 11:1 @ 65cc, 10.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400058

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Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Rotating Assembly, 402 Cid., 4.000 bore, 4.000 stroke, 58x, 6.125 rod, 8cc dish, 11:1 @ 65cc, 10.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58400008

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Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Rotating Assembly, 367 Cid., 3.820 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R58408205

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Estimated Ship Date: Monday 10/6/2025

SBC Forged 427 Balanced Assembly, 4 in. stroke, 350 main, 2 pc. RMS, H-Beam Rod, Forged Piston 11.2:1@ 58cc, 10.5:1@64cc, 10.25:1@67cc, 9.75:1@72cc

Part Number: SUM-SBC427RB125

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Estimated Ship Date: Monday 10/6/2025

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Pro LS 4340 Rotating Assembly, 402 Cid., 4.000 bore, 4.000 stroke, 24X, 6.125 rod, 20cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244000020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Rotating Assembly, 367 Cid., 3.820 bore, 4.000 stroke, 24X, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R24408205

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Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Rotating Assembly, 367 Cid., 3.820 bore, 4.000 stroke, 24X, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.8:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R244082012

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Estimated Ship Date: Monday 10/6/2025

Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.075 bore, 4.000 stroke, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4007521

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Estimated Ship Date: Monday 10/6/2025

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Pro LS 4340 Piston and Rod Kit, 410 Cid., 4.040 bore, 4.000 stroke, 6.125 rod, 8cc dish, 11.2:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400408

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Estimated Ship Date: Monday 10/6/2025

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Pro LS 4340 Piston and Rod Kit, 416 Cid., 4.070 bore, 4.000 stroke, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400706

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Estimated Ship Date: Monday 10/6/2025

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Pro LS 4340 Piston and Rod Kit, 408 Cid., 4.030 bore, 4.000 stroke, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4003020

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Estimated Ship Date: Monday 10/6/2025

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Pro LS 4340 Piston and Rod Kit, 403 Cid., 4.005 bore, 4.000 stroke, 6.125 rod, 8cc dish, 11:1 @ 65cc, 10.4:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400058

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Estimated Ship Date: Monday 10/6/2025

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ROTATING ASSEMBLY

Part Number: ESP-B627144005

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Estimated Ship Date: Monday 10/6/2025

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Pro LS 4340 Piston and Rod Kit, 402 Cid., 4.000 bore, 4.000 stroke, 6.125 rod, 20cc dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4000020

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Estimated Ship Date: Monday 10/6/2025

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Pro LS 4340 Piston and Rod Kit, 402 Cid., 4.000 bore, 4.000 stroke, 6.125 rod, 8cc dish, 11:1 @ 65cc, 10.4:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400008

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Estimated Ship Date: Monday 10/6/2025

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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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Estimated Ship Date: Monday 10/6/2025

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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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Estimated Ship Date: Monday 10/6/2025

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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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Estimated Ship Date: Monday 10/6/2025

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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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Estimated Ship Date: Monday 10/6/2025

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Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.080 bore, 4.000 stroke, 6.125 rod,, File-Fit Rings 6cc dish, 11.6:1 @ 65cc, 11:1 @ 70cc

Part Number: SUM-PR400806

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Estimated Ship Date: Monday 10/6/2025

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