Engine Kits & Rotating Assemblies

Pro LS 4340 Rotating Assembly, 371 Cid., 4.040 bore, 3.622 stroke, 58x, 6.098 rod, 12cc dish, 9.8:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R583604012

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Pro LS Rotating Assembly, 371 Cid., 4.040 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-R58360402

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Pro LS 4340 Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 24X, 6.098 rod,12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R243600512

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ROTATING ASSEMBLY KIT-SBC 355 3.480/4.060

Part Number: MAN-290860H

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Estimated Ship Date: Jan 30, 2026 if ordered today

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.040

Part Number: MAN-290940H

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Estimated Ship Date: Jan 30, 2026 if ordered today

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KIT-BBC 516 4.000/4.530 2cc DO

Part Number: MAN-29516

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

Part Number: MAN-29516H

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

Part Number: MAN-29516HX

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.030

Part Number: MAN-290130H

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ROTATING ASSEMBLY KIT-SBC 355 3.480/4.060

Part Number: MAN-290760H

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KIT-BBC 615 4.625/4.600 -3cc F

Part Number: MAN-38615

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ROTATING ASSEMBLY KIT-BBC 615 4.625/4.600 -3cc F

Part Number: MAN-38615H

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ROTATING ASSEMBLY KIT-BBC 615 4.625/4.600 -3cc F

Part Number: MAN-38615HX

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KIT-BBC 615 4.625/4.600 43cc DOME

Part Number: MAN-39615

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ROTATING ASSEMBLY KIT-BBC 615 4.625/4.600 43cc D

Part Number: MAN-39615H

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ROTATING ASSEMBLY KIT-BBC 615 4.625/4.600 43cc D

Part Number: MAN-39615HX

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KIT-SBC 383 3.750/4.030

Part Number: MAN-290030H

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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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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 26, 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 26, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4565049STD

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Estimated Ship Date: Jan 30, 2026 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4805027STD

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HD IN-FRAME KIT

Part Number: CLE-4805032STD

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HD IN-FRAME KIT

Part Number: CLE-4595518STD

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HD IN-FRAME KIT

Part Number: CLE-4685133STD

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