CHEVROLET Chevy big block Mark IV Engines & Components

4340 Forged Pro Series Lightweight

Part Number: SCA-445430C-2

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Estimated Ship Date: Feb 13, 2026 if ordered today

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4340 Forged Pro Series Lightweight

Part Number: SCA-445405C-2

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Estimated Ship Date: Feb 13, 2026 if ordered today

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4340 Forged Pro Series Lightweight

Part Number: SCA-445415C-2

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Cylinder Heads, Aluminum, Bare, 121cc Chamber, 340cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-9340

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Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Heads, Aluminum, Assembled, 121cc Chamber, 340cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-9342

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Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Heads, Aluminum, Bare, 121cc Chamber, 370cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-9370

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Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Heads, Aluminum, Assembled, 121cc Chamber, 370cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-9371

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Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Heads, Aluminum, Assembled, 119cc Chamber, 317cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-9320

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Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Heads, Aluminum, Assembled, 121cc Chamber, 370cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-9372

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Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Heads, Aluminum, Assembled, 121cc Chamber, 370cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-9373

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Heads, Aluminum, Assembled, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-2214

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Heads, Aluminum, Assembled, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-2216

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Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Heads, Freedom Series Big Block Chevy Heads, Assembled, Aluminum, 119cc Chamber, 360cc Intake, Angle Plug, Chevrolet, Big Block, Pair

Part Number: PMX-2256

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Estimated Ship Date: Jan 14, 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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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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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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Estimated Ship Date: Jan 8, 2026 if ordered today

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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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Estimated Ship Date: Jan 8, 2026 if ordered today

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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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Estimated Ship Date: Jan 8, 2026 if ordered today

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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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Estimated Ship Date: Jan 8, 2026 if ordered today

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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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Estimated Ship Date: Jan 8, 2026 if ordered today

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.595 in. Bore, Splayed Billet Caps, 55mm Babbit Cam Bearings and 0.904 Lifter, Each

Part Number: WRL-095112-55

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.425 in. Bore, 2-Piece Seal, 10.200 in. Deck, Chevy, Big Block, Each

Part Number: WRL-091110

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Estimated Ship Date: Jan 9, 2026 if ordered today

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Crate Engine, Remanufactured, Long Block, Assembled, Chevrolet, GMC, 7.4L/454, Each

Part Number: VRE-DCH7

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Estimated Ship Date: Jan 20, 2026 if ordered today

• Core Charge $770.00
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Crate Engine, Remanufactured, Long Block, Assembled, Chevrolet, GMC, 6.0L/366, Each

Part Number: VRE-DCTH

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Estimated Ship Date: Jan 19, 2026 if ordered today

• Core Charge $520.00
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