CHEVROLET 7.4L/454 Engine Blocks & Accessories

Rear Main Seal Housing, Aluminum, Natural, Chevrolet Performance LSX Block, Each

Part Number: NAL-19369274

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Engine Expansion Plug, Brass, 1.625 in. O.D., Each

Part Number: NAL-94673017

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Main Studs, 4-Bolt Main, Chevy, Big Block, with Milodon Caps, Kit

Part Number: MIL-81133

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Nov 7, 2025 if ordered today

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Main Studs, 4-Bolt Main, Chevy, Big Block, with Milodon Caps, Windage Tray, Kit

Part Number: MIL-81134

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Estimated Ship Date: Nov 7, 2025 if ordered today

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Main Studs, 2-Bolt Main, Chevy, Big Block, Kit

Part Number: MIL-81138

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Estimated Ship Date: Nov 7, 2025 if ordered today

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Main Studs, 2-Bolt Main, Chevy, Big Block, with Windage Tray, Kit

Part Number: MIL-81139

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Estimated Ship Date: Nov 7, 2025 if ordered today

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Main Cap Fasteners, Milodon Straight Bolt Caps, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Chevrolet, Big Block, Kit

Part Number: MIL-81140

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Estimated Ship Date: Nov 7, 2025 if ordered today

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Expansion Plugs, Steel, Chevrolet, GMC, Kit

Part Number: RNB-02670

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Estimated Ship Date: Sep 3, 2025 if ordered today

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AN Block Adapters, -12 AN Adapters, Clear Anodized, Chevy, Big Block, Kit

Part Number: PGP-PRP-6860

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Estimated Ship Date: Sep 3, 2025 if ordered today

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Main Bearing Cap Bolt, Engine Crankshaft Main Bearing Cap Bolt, BOLT/SCREW-CR/SHF BRG CAP

Part Number: ADO-10106460

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Estimated Ship Date: Sep 8, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855007

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Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Chevy, Big Block, Set

Part Number: MIL-11200

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 31, 2025 if ordered today

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Main Caps, 4-bolt, 3-center Position, Straight, Ductile Iron, Large Journal, Chevy, 396, 427, 454, Set

Part Number: DRT-32773050

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Estimated Ship Date: Sep 8, 2025 if ordered today

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MAIN CAP

Part Number: DRT-32763030H

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Main Studs, 4-Bolt Main, Chevy, Big Block, with Milodon Caps, Windage Tray, Kit

Part Number: MIL-81141

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Estimated Ship Date: Oct 22, 2025 if ordered today

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Engine Expansion Plugs

Part Number: NAL-11609914

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Main Caps, Ductile Iron, 3-Center, Straight Outer Bolts, 4-Bolt, Chevy, Big Block, Set

Part Number: MIL-11205

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Estimated Ship Date: Nov 6, 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: Sep 23, 2025 if ordered today

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Engine Expansion Plugs

Part Number: NAL-10044811

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Estimated Ship Date: Nov 12, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855005

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Estimated Ship Date: Aug 28, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855006

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Estimated Ship Date: Aug 28, 2025 if ordered today

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