1998 Engine Blocks & Accessories

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

• Free Shipping

Main Studs, 2-Bolt Main, Cummins, 3.9L, Kit

Part Number: GFN-MSK394BT

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Bellhousing Dowel Pin, Killer Upgrade, Pins, Retainer, Seals, Gasket, 12 Valve, Kit

Part Number: BDD-1040182

2.75 out of 5 stars ( 4 )

Estimated Ship Date: Nov 24, 2025 if ordered today

• Free Shipping
• Special Order

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

Part Number: MIL-81134

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Feb 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Main Studs, 4-Bolt Main, Chevy, Large Journal, Small Block, with Milodon Caps, Kit

Part Number: MIL-81128

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

• Free Shipping
• Special Order

Main Studs, Straight 4-Bolt Main, Chevy, Large Journal, Small Block, with Milodon Caps, Windage Tray, Kit

Part Number: MIL-81131

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Sleeve, Chromoly, 89.00mm Bore, for use on Honda®, Each

Part Number: WIS-3052FA

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Main Studs, Straight 4-Bolt Main, Chevy, Large Journal, Small Block, with Milodon Caps, Kit

Part Number: MIL-81130

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Main Studs, 2-Bolt Main, Chevy, 350, 400, with Windage Tray, Kit

Part Number: MIL-81126

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 4, 2026 if ordered today

• Free Shipping
• Special Order

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: Feb 4, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Main Cap Studs, 4140 Studs, Parallel Ground Washers, 12-Point Nuts, 2-Bolt Mains, 5.9L, 12V, L6, Cummins, Diesel, Dodge, Kit

Part Number: PQX-1000311

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Main Studs, Straight 4-Bolt Main, Chevy, 350, 400, with Windage Tray, Kit

Part Number: MIL-81117

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 3, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Main Studs, Straight 4-Bolt Main, Chevy, 350, 400, Kit

Part Number: MIL-81115

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 3, 2026 if ordered today

• Special Order

Main Studs, 4-Bolt Main, Chevy, Large Journal, Small Block, with Milodon Caps, Windage Tray, Kit

Part Number: MIL-81129

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Part Number: MIL-81139

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Main Studs, 4-Bolt Main, Man O'War, Billet Main Caps, Ford, Small Block Windsor, Kit

Part Number: WRL-701432

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Free Shipping
• Special Order

Cylinder, Front, 3.498 in. Bore, Stock Length, Aluminum, Natural, Cast Iron Liner, Harley-Davidson®, Each

Part Number: HDD-820-51558

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Free Shipping
• Special Order

Main Studs, 2-Bolt Main, Cummins, 5.9L, Kit

Part Number: GFN-MSK5924

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Free Shipping
• Special Order

Main Bolts, Pro Series, 4-Bolt Main, Chevy, 350, with 1/2 in. Straps, Kit

Part Number: ARP-234-5203

Not Yet Reviewed

Estimated Ship Date: Nov 21, 2025 if ordered today

• Special Order

Main Studs, 4-Bolt Main, Buick, Stage II Aftermarket 3.8L, Kit

Part Number: ARP-222-5602

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Free Shipping
• Special Order

Main Cap Fasteners, 2-Bolt, Cross Bolt Mains, Studs, Washers, Nuts, Standard Hex, 190,000 psi,, Chromoly, Rover, 4.0/4.6L, Kit

Part Number: ARP-157-5401

5.0 out of 5 stars ( 1 )

• Free Shipping
• Special Order

Main Studs, 2-Bolt Main, Chrysler, Dodge, Plymouth, 2.0L, 4-Cylinder, Kit

Part Number: ARP-141-5801

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 10, 2025 if ordered today

• Free Shipping
• Special Order

Main Studs, 4-Bolt Main, Chevy Small Block, Large Journal, with Straps & Splayed Caps, Kit

Part Number: ARP-234-5604

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Special Order

Main Studs, 4-Bolt Main, Chevy, 350, 400, Dart Iron Eagle Block, Kit

Part Number: DRT-66311000

Not Yet Reviewed

Estimated Ship Date: Nov 20, 2025 if ordered today

• Free Shipping
• Special Order