CHEVROLET Chevy big block Mark IV Engine Blocks & Accessories

Main Studs, 4-Bolt Main, Chevy, Big Block, Kit

Part Number: ARP-135-5601

5.0 out of 5 stars ( 8 )

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Main Cap Fasteners, Main Cap Girdle Stud Kits, 6-bolt, Stud Style, 12-Point Head, Nuts, Chevy LS, Kit

Part Number: PQX-1000098

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Main Studs, 4-Bolt Main, For Windage Trays, Chevy, Big Block, Kit

Part Number: ARP-235-5701

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Main Studs, 4-Bolt, Chevy, 454, Dart Big M Block, Kit

Part Number: ARP-235-5603

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Main Studs, 2-Bolt Main, For Windage Trays, Chevy, Big Block, Kit

Part Number: ARP-235-5502

5.0 out of 5 stars ( 9 )

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Main Studs, 4-Bolt Main, High Performance, 12-Point, Chevy, Big Block, World/Merlin II and III Blocks, Kit

Part Number: ARP-135-5801

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Main Studs, 4-Bolt Main, Dart Big M Block, Chevy, 454, Kit

Part Number: ARP-235-5601

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Main Caps, Billet Steel, 4-Bolt, Angled, Chevy, Small Block, Set of 3

Part Number: PQX-1740002

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Main Cap Girdle, 1045 Billet Steel, No Hardware, for Chevy Big Block 454, Each

Part Number: PQX-9045401

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Big Block, Set of 3

Part Number: PQX-1745402

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Estimated Ship Date: Feb 9, 2026 if ordered today

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MAIN GIRDLE, BILLET STEEL, CHEV 400, incl PRW fasteners & hdwe

Part Number: PQX-9040000

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Main Caps, Merlin III, 3-Center, Angled Outer Bolts, 4-Bolt, Chevrolet, Big Block, Each

Part Number: WRL-703370C

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Main Studs, 8740 Chromoly, 200,000 Psi Tensile Strength, 4-Bolt Main, Chevy, Big Block, Kit

Part Number: PQX-1045442

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Estimated Ship Date: Feb 10, 2026 if ordered today

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Main Cap, Billet Steel, Front, Straight Outer Bolts, 4-Bolt, Chevy, Big Block, Each

Part Number: HRS-H454-1

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Main Studs, Straight 4-Bolt Main, Chevy, Big Block, Kit

Part Number: MIL-81135

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Estimated Ship Date: Mar 9, 2026 if ordered today

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MAIN GIRDLE, BILLET STEEL, CHEV 454, incl PRW fasteners & hdwe

Part Number: PQX-9045400

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Main Studs, Straight 4-Bolt Main, Chevy, Big Block, Kit

Part Number: MIL-81137

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

Part Number: MIL-81133

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Estimated Ship Date: Mar 5, 2026 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: Mar 5, 2026 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: Mar 5, 2026 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: Mar 5, 2026 if ordered today

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Main Stud Kit

Part Number: PIO-855005

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Estimated Ship Date: Dec 26, 2025 if ordered today

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