Engine Kits & Rotating Assemblies

Pro LS 4340 Rotating Assembly, 417 Cid., 4.075 bore, 4.000 stroke, 58x, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R584007521

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Estimated Ship Date: Monday 7/28/2025

HD IN-FRAME KIT

Part Number: CLE-4685100STD

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Estimated Ship Date: Aug 4, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4685149STD

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Estimated Ship Date: Aug 4, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4685128STD

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Estimated Ship Date: Aug 27, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4565055STD

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Estimated Ship Date: Aug 28, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595519STD

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Estimated Ship Date: Aug 28, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4895016STD

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Estimated Ship Date: Aug 28, 2025 if ordered today

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3.622" stroke, internal balance, billet 4340 steel, center-counterweighted Chevrolet Gen III "LS", no reluctor

Part Number: ESP-334536236100

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Estimated Ship Date: Aug 27, 2025 if ordered today

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4.000" stroke, internal balance, billet 4340 steel, center-counterweighted Chevrolet Gen III "LS", no reluctor

Part Number: ESP-334540016100

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Estimated Ship Date: Aug 27, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595518STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4805032STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KITS

Part Number: CLE-45955241STD

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Estimated Ship Date: Jul 28, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595528STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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Heavy Duty In-Frame Kit

Part Number: CLE-4595547STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD OVERHAUL KIT

Part Number: CLE-4681094STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD OVERHAUL KIT

Part Number: CLE-4681128STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT, STD

Part Number: CLE-4865056STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4895030STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4565031STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4565036STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4565046STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595512STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595513STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595514STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595529STD

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Estimated Ship Date: Sep 8, 2025 if ordered today

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