Engine Kits & Rotating Assemblies

Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 58x, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L9033

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Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 58x, 6.125 rod, 7cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L9037

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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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Pro LS 4340 Rotating Assembly, 359 Cid., 3.780 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R58407805

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Pro LS 4340 Rotating Assembly, 382 Cid., 3.898 bore, 4.000 stroke, 58x, 6.125 rod, 16cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R584089816

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Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 bore, 4.000 stroke, 58x, 6.125 rod, 16cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R584090316

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Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R58409035

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CHEVY BB ROTATING ASSEMBLY

Part Number: ESP-11114060

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ROTATING ASSEMBLY

Part Number: ESP-B1612603057

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BALANCED COMPETITION ASSEMBLY CHRY. 360

Part Number: ESP-B20202000

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ROTATING ASSEMBLY

Part Number: ESP-231143927

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PRO STREET ASSEMBLY CHEV 400, 350 MAINS

Part Number: ESP-62664060

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ROTATING ASSEMBLY KIT-SBC 434 4.000/4.125

Part Number: MAN-290300H

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Estimated Ship Date: Feb 2, 2026 if ordered today

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ROTATING ASSEMBLY KIT-SBC 434 4.000/4.125

Part Number: MAN-290300RH

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Estimated Ship Date: Feb 2, 2026 if ordered today

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ROTATING ASSEMBLY KIT-SBC 434 4.000/4.155

Part Number: MAN-290330H

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Estimated Ship Date: Feb 2, 2026 if ordered today

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ROTATING ASSEMBLY KIT-SBC 434 4.000/4.155

Part Number: MAN-290330RH

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Estimated Ship Date: Feb 2, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4685100STD

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Estimated Ship Date: Jan 19, 2026 if ordered today

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S&S Cycle 2017 M8 Models 128in Oil Cooled Power Pack w/ Chrome Pushrod Tubes w/o Highlight

Part Number: SSY-310-1105B

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Estimated Ship Date: Jan 12, 2026 if ordered today

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S&S Cycle 2017 M8 Models 128in CI Oil Cooled w/ Chrome Pushrod Tubes & Highlighted Fins

Part Number: SSY-310-1106A

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Estimated Ship Date: Jan 12, 2026 if ordered today

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S&S Cycle 2017+ M8 129in Power Pack w/ Black Pushrod Tubes & Cam Chain Tensioners - Blk w/ Highlight

Part Number: SSY-310-1225

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Estimated Ship Date: Jan 12, 2026 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: Jan 29, 2026 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: Jan 29, 2026 if ordered today

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Heavy Duty In-Frame Kit

Part Number: CLE-4595547STD

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Estimated Ship Date: Feb 2, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 516 4.000/4.530 2cc DO

Part Number: MAN-29516H

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Estimated Ship Date: Feb 2, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 516 4.000/4.530 2cc DO

Part Number: MAN-29516HX

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Estimated Ship Date: Feb 2, 2026 if ordered today

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