Engine Blocks & Parts

Cylinder Sleeve, Cast Iron, 4.140 in. Bore I.D., 0.090 in. Wall Thickness, 7.750 in. Length, Each

Part Number: MEL-CSL640

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 4.010 in. Bore I.D., 0.063 in. Wall Thickness, 8.375 in. Length, Each

Part Number: MEL-CSL641X

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 4.438 in. Bore I.D., 0.139 in. Wall Thickness, 12.200 in. Length, Each

Part Number: MEL-CSL662

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 3.346 in. Bore I.D., 0.125 in. Wall Thickness, 5.250 in. Length, Each

Part Number: MEL-CSL702

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 3.938 in. Bore I.D., 0.125 in. Wall Thickness, 6.750 in. Length, Each

Part Number: MEL-590203

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 4.000 in. Bore I.D., 0.125 in. Wall Thickness, 6.250 in. Length, Each

Part Number: MEL-590236

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 4.050 in. Bore I.D., 0.125 in. Wall Thickness, 6.313 in. Length, Each

Part Number: MEL-590295

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Engine Expansion Plug Kit, Stock Replace

Part Number: MEL-MPE-846R

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Main Studs, 4-Bolt Main, Merlin IV, Billet Main Caps, Chevy, Big Block, Kit

Part Number: WRL-701416

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.115 in. Diameter Bore, 1-Piece Rear Main Seal, Ford, Small Block, Each

Part Number: WRL-087160

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Estimated Ship Date: Sep 29, 2025 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: Sep 29, 2025 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: Sep 29, 2025 if ordered today

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Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.595 in. Bore, 2-Piece Seal, 9.850 in. Deck, Chevy, Big Block, Each

Part Number: WRL-091107

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Estimated Ship Date: Sep 29, 2025 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: Sep 29, 2025 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: Sep 29, 2025 if ordered today

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Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.495 in. Bore, 2-Piece Seal, 10.200 in. Deck, Chevy, Big Block, Each

Part Number: WRL-091111

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.245 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: WRL-095000

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Sep 29, 2025 if ordered today

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 9.800 in. Deck Height, 4.495 in. Bore, Splayed Billet Main Caps, Standard Cam and Lifter bores, Each

Part Number: WRL-095010

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Estimated Ship Date: Sep 29, 2025 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: Sep 29, 2025 if ordered today

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 9.800 in. Deck, 4.595 in. Bore, Splayed Billet Caps, Standard Cam Bearings and Lifter bores, Each

Part Number: WRL-095012

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Estimated Ship Date: Sep 29, 2025 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: Sep 29, 2025 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: Sep 29, 2025 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: Sep 29, 2025 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: Sep 29, 2025 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, 55mm Babbit Cam Bearings and 0.904 Lifter, Each

Part Number: WRL-095110-55

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Estimated Ship Date: Sep 29, 2025 if ordered today

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