1966 Main Cap Fasteners

Main Studs, Hex, Chromoly, 2-Bolt Main, Ford, Big Block FE, Kit

Part Number: ARP-155-5401

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Main Studs, 2-Bolt Main, 180,000 psi Yield Strength, Washers, Hex Nuts, Chevy, Small Block, Kit

Part Number: SUM-910205

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Main Studs, 4-bolt Style, 180,000 psi Yield Strength, Washers, Nuts, Chevy, Small Block, Kit

Part Number: SUM-910204

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Today

Replacement, Hardware Kit, 2-Bolt Main, Ford, with Trick Flow® Main Cap Girdle,

Part Number: TFS-5150R700-HK

Not Yet Reviewed

Estimated Ship Date: Today

Main Studs, 2-Bolt Main, Austin, MG, Morris, Triumph, Kit

Part Number: ARP-206-5401

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bolts, High Performance Series, 4-Bolt Main, Ford, Small Block, 221-302, Kit

Part Number: ARP-154-5201

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Replacement, Hardware Kit, 2-Bolt Main, Ford, with Trick Flow® Main Cap Girdle,

Part Number: TFS-51500700-HK

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Estimated Ship Date: Today

Main Cap Fasteners, Main Cap Girdle Stud Kits, 2-bolt, Stud Style, Hex Head, Nuts, Washers, Ford, Big Block FE, Big Block 385 Series, Kit

Part Number: PQX-1000215

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Main Stud Kit

Part Number: PIO-855016

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Main Cap Fastener, Bolt, Little M Sportsman, Chevy, Each

Part Number: DRT-66722687

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Estimated Ship Date: Today

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: Mar 3, 2026 if ordered today

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Main Studs, 2-Bolt, Chrysler 318-360, 383-440 and 331-392 Early Hemi, Kit

Part Number: MIL-81185

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: MIL-81135

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Estimated Ship Date: Mar 30, 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: Mar 27, 2026 if ordered today

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OLDS 350-403, Stud Kit, Main Girdle, Includes 8ea, 1/2" Longer Studs, 7/16"-14/20 x 4.50" Studs, PRW Fasteners & Hardware.

Part Number: PQX-1000211

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 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 Stud Kit

Part Number: PIO-855005

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 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: Mar 2, 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: Mar 27, 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 27, 2026 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: Mar 27, 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 27, 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

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Main Studs, 2-Bolt, Pontiac, 326-455, Kit

Part Number: MIL-81221

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered 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: Mar 27, 2026 if ordered today

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