Availability
Showing In Stock Items. Show All 193 Items.
Main Bolts, 6-bolt Mains, Flanged Hex, Chevy GM, LS/LSX, Gen III/IV, Kit
Part Number: SUM-910229
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
BUILD IT WITH SUMMIT!
Mockup Bock, Cummins 5.9 12V Diesel, Long Block, Steel, Includes bolts, Each
Part Number: SUM-774005
Not Yet Reviewed
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Bolts, 6-bolt Style, External Hex, Chevy, LS, Kit
Part Number: CMB-08-0064
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Bolts, Pro Series, 12-Point, 4-Bolt Main, Chevy 1967-2002, 350, Kit
Part Number: ARP-234-5201
Not Yet Reviewed
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
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 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Main Studs, 6-Bolt Main, Chevrolet, 4.8, 5.3, 5.7, 6.0L, Kit
Part Number: ARP-234-5608
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Studs, 4-Bolt Main, Chevy, 6.2L, Kit
Part Number: ARP-234-5802
Not Yet Reviewed
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Studs, Chromoly, Hex Head, 2-Bolt, Chrysler, Dodge, 5.7/6.1L, Kit
Part Number: ARP-244-5400
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Girdle, Bolt, Tool Steel, Ford, 289/302, Kit
Part Number: TFS-51500700
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Girdle, Bolt, Tool Steel, Ford, 351W, Kit
Part Number: TFS-51500701
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Studs, 4-Bolt Main, Chevy, Big Block, Kit
Part Number: ARP-135-5601
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Caps, Billet Steel, 3-Center, Straight Outer Bolts, 4-Bolt, Chevy, Small Block, Set of 3
Part Number: HRS-H350C
Not Yet Reviewed
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Cap, Billet Steel, 3-Center, Straight Outer Bolts, 4-Bolt, Chevy, Small Block, Each
Part Number: HRS-H350R-1
Not Yet Reviewed
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Cap, Ductile Iron, Front, Angled Outer Bolts, 4-Bolt, Chevy, Small Block, Each
Part Number: MIL-11053
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Main Cap, Ductile Iron, Front, Straight Outer Bolts, 2-Bolt, Large Journal, Chevy, Small Block, Each
Part Number: MIL-11153
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Main Cap, Billet Steel, Front, Straight Outer Bolts, 4-Bolt, Chevy, Big Block, Each
Part Number: HRS-H454-1
Not Yet Reviewed
Estimated Ship Date: Feb 4, 2026 if ordered today
Estimated Ship Date: Feb 4, 2026 if ordered today
Main Cap, Billet Steel, 3-Center, Straight Outer Bolts, 4-Bolt, Chevy, Small Block, Each
Part Number: HRS-H350C-1
Not Yet Reviewed
Estimated Ship Date: Feb 5, 2026 if ordered today
Estimated Ship Date: Feb 5, 2026 if ordered today
Main Caps, Billet Steel, Chevy 305/350, 1967-1986, 4 Bolt Replacement Style, Sold as a Set of 3
Part Number: PQX-1735001
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Caps, Billet Steel, 3-Center, Straight Bolts, 2-Bolt, Ford, Small Block, Set of 3
Part Number: PQX-1730201
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
BTR STOCK REPLACEMENT LS MAIN BOLT KIT
Part Number: BTC-S0548
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
Main Studs, 4-Bolt Main, Ford, 4.6/5.4L, 2V/3V/4V Without Windage Tray, Kit
Part Number: ARP-156-5802
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Caps, Merlin III, 3-Center, Angled Outer Bolts, 4-Bolt, Chevrolet, Big Block, Each
Part Number: WRL-703370C
Not Yet Reviewed
Estimated Ship Date: Jan 14, 2026 if ordered today
Estimated Ship Date: Jan 14, 2026 if ordered today
Mockup Block, Cummins 4BT, Long Block, Steel, Includes bolts, Each
Part Number: SUM-774006
Not Yet Reviewed
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Main Bolts, 4-Bolt Main, Merlin IV, Nodular Iron Main Caps, Chevy, Big Block, Kit
Part Number: WRL-701413
Not Yet Reviewed
Estimated Ship Date: Jan 14, 2026 if ordered today
Estimated Ship Date: Jan 14, 2026 if ordered today
Main Cap Fasteners, Two Bolt Caps with Windage Tray, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Holden, V8, Kit
Part Number: MIL-81146
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.