CHEVROLET Chevy big block Mark IV Engines & Components

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.500 in. Stroke, 6.385 in. Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BBG42B-MG

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BALANCED PRO STREET ASSEMBLY CHEV 427

Part Number: ESP-B68211060

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

Part Number: ESP-11012070

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CHEVY BB ROTATING ASSEMBLY

Part Number: ESP-11114060

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COMPETITION ASSEMBLY CHEV 396

Part Number: ESP-183024155

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 345cc Intake, Exhaust Port Is Raised 0.600 in., Rectangular Intake Port, Chevy, Big Block

Part Number: WRL-030630-1

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.245 in. Bore, 2-Piece Seal, 9.800 in. Deck, Chevy, Big Block, Each

Part Number: WRL-091100

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.495 in. Bore, 2-Piece Seal, 9.800 in. Deck, Chevy, Big Block, Each

Part Number: WRL-091101-55

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.590 in. Bore, 9.850 in. Deck, 55mm Cam Bore, Nodular Iron Main Cap, 2-Piece Rear Seal, Chevy, Big Block, Each

Part Number: WRL-091107-55

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 9.800 in. Deck, 4.495 in. Bore, Billet Caps, 55mm Babbitt Cam Bearings and 0.904 in. Lifter bores, Each

Part Number: WRL-095010-55

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 9.800 in. Deck, 4.595 in. Bore, Billet Caps, 55mm Babbitt Cam Bearings and 0.904 in. Lifter bores, Each

Part Number: WRL-095012-55

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Engine Block, Cast Iron, 4-Bolt Mains, 4.595 in. Diameter Bore, 9.850 in. Deck, Billet Steel Main Caps, 2-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: WRL-095017

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.245 in. Bore, Splayed Billet Caps, Standard Cam Bearings and Lifter bores, Each

Part Number: WRL-095100

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 269cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030040-1

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 269cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030040-2

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 269cc Intake, Exhaust Port Is Raised 0.600 in., Oval Intake Port, Chevy, Big Block, Each

Part Number: WRL-030040M-2

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Cylinder Head, Merlin, CNC Ported, Cast Iron, Bare, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030620CNC

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.495 in. Bore, Splayed Billet Caps, 55mm Babbit Cam Bearings and 0.904 Lifter, Each

Part Number: WRL-095110-55

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Estimated Ship Date: Jan 7, 2026 if ordered today

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.495 in. Bore, Splayed Billet Caps, Standard Cam Bearings and Lifter bores, Each

Part Number: WRL-095110

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Estimated Ship Date: Jan 7, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.00 in. Stroke, Chevy, 7.4L, Each

Part Number: MAN-190170

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Estimated Ship Date: Jan 21, 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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Estimated Ship Date: Jan 21, 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: Jan 21, 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: Jan 21, 2026 if ordered today

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4340 Forged Superlight

Part Number: SCA-445415C-3

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Engine Assembly, Short Block, 2-Piece Main Seal, Chevy, Big Block, 540, Each

Part Number: HPE-SP44

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Estimated Ship Date: Feb 23, 2026 if ordered today

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