Engine Kits & Rotating Assemblies

Pro LS Rotating Assembly, 370 Cid., 4.030 bore, 3.622 stroke, 58x, 6.098 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R58360302

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Pro LS 4340 Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 58x, 6.098 rod, 12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R583600512

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Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 24X, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R2436L9033

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Pro LS 4340 Rotating Assembly, 346 Cid., 3.898 bore, 3.622 stroke, 58x, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R58368983

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ROTATING ASSEMBLY KIT-SBC 434 4.000/4.125

Part Number: MAN-290300H

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Estimated Ship Date: Jun 12, 2026 if ordered today

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ROTATING ASSEMBLY KIT-SBC 434 4.000/4.125

Part Number: MAN-290300R

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Estimated Ship Date: Jun 12, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595529STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4805027STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595513STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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Heavy Duty In-Frame Kit

Part Number: CLE-4595543STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4895030STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595521STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595525STD

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Estimated Ship Date: Jun 12, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4895016STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595514STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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Heavy Duty In-Frame Kit

Part Number: CLE-4595542STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4565046STD

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Estimated Ship Date: Jun 10, 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: Jun 22, 2026 if ordered today

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ROTATING ASSEMBLY

Part Number: MAN-39393

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Estimated Ship Date: Jun 12, 2026 if ordered today

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ROTATING ASSEMBLY KIT-SBC 434 4.000/4.155

Part Number: MAN-290330R

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Estimated Ship Date: Jun 12, 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: Jun 12, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595516STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4685100STD

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Estimated Ship Date: Jun 12, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4595443STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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Heavy Duty In-Frame Kit

Part Number: CLE-4595547STD

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Estimated Ship Date: Jun 11, 2026 if ordered today

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