CHEVROLET Engine Blocks & Accessories

Engine Block, Cast Iron, 4-Bolt Mains, 4.240 in. Diameter Bore, 2-Piece Rear Seal, Chevy, Big Block Mark IV

Part Number: NAL-19212196

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Engine Expansion Plugs

Part Number: NAL-10044811

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Estimated Ship Date: Jan 21, 2026 if ordered today

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PLUG

Part Number: NAL-21000867

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Engine Block, Cast Iron, Nodular Iron 4-Bolt Mains, 4.560 in. Bore, 1-Piece Seal, 10.200 in. Deck, Chevy, Big Block, Each

Part Number: NAL-19432546

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Estimated Ship Date: Jan 21, 2026 if ordered today

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STUD

Part Number: NAL-12561389

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, 350, Each

Part Number: NAL-12480049

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Main Studs, 4-Bolt Main, Chevy, 400, with Windage Tray, with 3.0 in. Outer Studs, Kit

Part Number: ARP-234-5607

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Estimated Ship Date: Oct 20, 2025 if ordered today

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Main Studs, 8740 Chromoly, 200,000 Psi Tensile Strength, Gen V, LT1, Chevy, Kit

Part Number: PQX-1034613

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Main Studs, 8740 Chromoly, 200,000 Psi Tensile Strength, 2-Bolt Main, Chevy, Big Block, Kit

Part Number: PQX-1045422

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Estimated Ship Date: Nov 11, 2025 if ordered today

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Bare Block, 8.1L Vortec, 10.245 in. Deck Height, 4.245 in. Bore, Standard Cam, Nodular Iron Caps, Direct Stock OEM Replacement, Each

Part Number: WRL-018100

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Main Cap, Rear, Merlin II, 4-Bolt, 400 Mains, Billet Steel, Chevrolet, Small Block, Each

Part Number: WRL-703355R

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Water Return Kit, Remote Mount, Motown II Block, Billet Aluminum, Black Anodized, -12 AN Stainless Braided Hose, Chevy, LS, Kit

Part Number: WRL-703850-K

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.495 in. Bore, 9.500 in. Deck, 55mm Cam Bore, Billet Steel Main Cap, 2-Piece Rear Seal, Chevy, Big Block, Each

Part Number: WRL-095013-55

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 3.995 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084080-904

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.120 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084081-904

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, Billet Main Caps, 3.995 in. Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084110

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.115 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084120

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engines, Bare Blocks, SBC Motown Block, 350 Mains, 9.025 in. Deck Height, 4-bolt Main Bolt Style, Chevrolet, V8, Chevy Small Block Gen I, Each

Part Number: WRL-084120RC

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, 400 Mains, Billet Main Caps, 4.120 in. Bore, Raised Cam, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084135RC

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, 400 Mains, 0.904 in. Lifter, Billet Main Caps, 4.120 in. Bore, Raised Cam, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084135RC-904

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, Billet 4-Bolt Mains, 3.995 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084180-904

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engines, Bare Blocks, SBC Motown LS Bare Block, 350 Mains, 9.240 in. Deck Height, 4-bolt Main Bolt Style, Chevrolet, V8, Chevy Small Block Gen I, Each

Part Number: WRL-084181

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, Billet 4-Bolt Mains, 4.120 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084181-904

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Main Bearing Cap Bolt, Engine Crankshaft Main Bearing Cap Bolt, BOLT/SCREW

Part Number: ADO-11610683

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Four Bolt Main Cap Kit

Part Number: PIO-839021

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