1981 Engine Kits & Rotating Assemblies

Engine Rotating Assembly, Street/Strip, Cast Crank, Forged Pistons, I-Beam Rods, Chevy, Big Block, Kit

Part Number: ESP-18001030

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Estimated Ship Date: Jan 13, 2026 if ordered today

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ROTATING ASSEMBLY

Part Number: ESP-65010030

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Estimated Ship Date: Jan 13, 2026 if ordered today

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Engine Rotating Assembly, Street/Strip, Cast Crank, Hypereutectic Piston, I-Beam Rod, Chevy, Small Block, Kit

Part Number: ESP-B13055E060

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Estimated Ship Date: Jan 13, 2026 if ordered today

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Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Big Block, Kit

Part Number: ESP-B11013100

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Engine Rotating Assembly, Street/Strip, Forged Piston, Cast Crank, I-Beam Rods, Chevy, Big Block, Kit

Part Number: ESP-B18321030

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Estimated Ship Date: Jan 26, 2026 if ordered today

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ROTATING ASSEMBLY KIT-SBC 383 3.750/4.035

Part Number: MAN-290035R

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 555 4.250/4.560 43cc D

Part Number: MAN-29555RHX

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 565 4.250/4.600 43cc D

Part Number: MAN-29565RX

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 565 4.250/4.600 43cc D

Part Number: MAN-29565X

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 548 4.250/4.530 20cc D

Part Number: MAN-38548RX

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 572 4.250/4.625 DOME

Part Number: MAN-39572RHXX

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 572 4.250/4.625 43cc D

Part Number: MAN-29572RHX

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 572 4.250/4.625 43cc D

Part Number: MAN-29572RHXX

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 565 4.250/4.600 -3cc F

Part Number: MAN-38565RH

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 572 4.250/4.625 -3cc F

Part Number: MAN-38572X

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-SBC 355 3.480/4.060

Part Number: MAN-290760R

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Estimated Ship Date: Jan 19, 2026 if ordered today

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KIT-BBC 548 4.250/4.530 20cc D

Part Number: MAN-38548

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 572 4.250/4.625 DOME

Part Number: MAN-39572RX

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Estimated Ship Date: Jan 19, 2026 if ordered today

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KIT-SBC 383 3.750/4.030

Part Number: MAN-290130

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Estimated Ship Date: Jan 19, 2026 if ordered today

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KIT-SBC 383 3.750/4.035

Part Number: MAN-290135

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Estimated Ship Date: Jan 19, 2026 if ordered today

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KIT-SBC 355 3.480/4.035

Part Number: MAN-290735

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Estimated Ship Date: Jan 19, 2026 if ordered today

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KIT-SBC 355 3.480/4.040

Part Number: MAN-290840

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Estimated Ship Date: Jan 19, 2026 if ordered today

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KIT-SBC 355 3.480/4.060

Part Number: MAN-290860

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Estimated Ship Date: Jan 19, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 555 4.250/4.560 43cc D

Part Number: MAN-29555R

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Estimated Ship Date: Jan 19, 2026 if ordered today

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KIT-BBC 555 4.250/4.560 DOME

Part Number: MAN-39555

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Estimated Ship Date: Jan 19, 2026 if ordered today

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