1966 Engine Blocks & Accessories

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

Part Number: ARP-135-5601

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Main Girdle, Race Version, Stud, Tool Steel, Ford, 289/302, Kit

Part Number: TFS-5150R700

4.2 out of 5 stars ( 5 )

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Main Girdle, Bolt, Tool Steel, Ford, 289/302, Kit

Part Number: TFS-51500700

5.0 out of 5 stars ( 3 )

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Main Studs, 2-Bolt Main, Work with Windage Tray, Chrysler, Small Block, Kit

Part Number: ARP-240-5501

4.0 out of 5 stars ( 5 )

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

Part Number: ARP-235-5701

5.0 out of 5 stars ( 4 )

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Main Studs, 4-Bolt Main, Pontiac V8, Kit

Part Number: ARP-194-5601

5.0 out of 5 stars ( 1 )

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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 Cap Girdle, Steel, Black Oxide, Hardware Included, Ford, Kit

Part Number: PQX-0944800

2.67 out of 5 stars ( 3 )

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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: Dec 18, 2025 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: Dec 18, 2025 if ordered today

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Main Studs, 2-Bolt, Chrysler, 318-360 with Windage Tray, Kit

Part Number: MIL-81186

2.0 out of 5 stars ( 2 )

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Main Studs, 4-Bolt Main, Hex Head, Dodge, Plymouth, 426 Hemi, World Products Block, Kit

Part Number: ARP-145-5603

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Estimated Ship Date: Tomorrow 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: Dec 8, 2025 if ordered today

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Main Studs, 4-Bolt Main, Dodge, Plymouth, 426 Hemi, Kit

Part Number: ARP-145-5602

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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: Feb 2, 2026 if ordered today

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Main Studs, 2-Bolt, Pontiac 326-455, with Windage Tray, Kit

Part Number: MIL-81223

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 30, 2026 if ordered today

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INSTALLATION KIT

Part Number: BRO-SKBLOCKBBCI

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Estimated Ship Date: Nov 12, 2025 if ordered today

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

Part Number: MIL-81137

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: MIL-81183

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 30, 2026 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: Jan 30, 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: Jan 30, 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: Jan 30, 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: Jan 30, 2026 if ordered today

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Main Stud Kit

Part Number: PIO-855005

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Main Studs, 4-Bolt, Pontiac 389-455, Center Studs, Kit

Part Number: MIL-81222

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Estimated Ship Date: Feb 2, 2026 if ordered today

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