Engine Blocks & Accessories Engines & Components

Stef's Rear Main Seal Adapter Kits 7035

Seal Adapter, Billet Aluminum, 1 to 2-Piece, Chevy, 7.4L, Each

Part Number: STF-7035

3.0 out of 5 stars ( 1 )

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Howards Cams Extreme Billet Main Caps H350RWS

Howards Cams Extreme Billet Main Caps H350RWS

Main Cap, Billet Steel, Rear, Straight Outer Bolts, 2-Bolts, Chevy, Small Block, Each

Part Number: HRS-H350RWS

3.5 out of 5 stars ( 2 )

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ARP Main Stud Kits 151-5405

Main Studs, 2-Bolt Main, Ford, Duratec 2.3L, Kit

Part Number: ARP-151-5405

Not Yet Reviewed

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ARP Main Stud Kits 258-5601

Main Studs, 6-Bolt Main, ARP2000 Alloy, Black Oxide, Ford, 7.3L, Kit

Part Number: ARP-258-5601

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ARP Main Stud Kits 155-5501

Main Studs, 4-Bolt Main, Ford 429, 460, Kit

Part Number: ARP-155-5501

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PRW Billet Steel Main Caps 1745401

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

Part Number: PQX-1745401

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PRW Billet Steel Main Girdles 9034700

Main Cap Girdle, 1045 Billet Steel, Stroker Clearance, Black Oxide Finish, with PRW SCM-4135 Hardware, Ford, 302W, Each

Part Number: PQX-9034700

5.0 out of 5 stars ( 1 )

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ARP Main Stud Kits 208-5403

Main Studs, 2-Bolt Main, for use on Honda®, 1.8L, B18C1, Kit

Part Number: ARP-208-5403

5.0 out of 5 stars ( 1 )

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ARP Main Stud Kits 150-5801

Main Studs, 4-Bolt Main, Ford, Powerstoke, 6.0L, Kit

Part Number: ARP-150-5801

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ARP Main Stud Kits 135-5606

Main Studs, 4-Bolt Main, Chevy, Big Block, Mark V, 502, Kit

Part Number: ARP-135-5606

5.0 out of 5 stars ( 2 )

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Melling Cylinder Sleeves CSL572

Cylinder Sleeve, Cast Iron, 5.750 in. Bore I.D., 0.125 in. Wall Thickness, 17.500 in. Length, Each

Part Number: MEL-CSL572

5.0 out of 5 stars ( 1 )

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ARP Main Stud Kits 134-5801

Main Studs, Outer Studs, 4-Bolt Main, Chevy, Small Block, Large Journal, Hex, Kit

Part Number: ARP-134-5801

Not Yet Reviewed

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ARP Crankcase Thru-Bolt Kits 204-5406

Porsche '89 964 &993, '90-'98 all 3.6 & 3.8L crankcase thru bolt kit

Part Number: ARP-204-5406

Not Yet Reviewed

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ARP Main Stud Kits 135-5801

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

Part Number: ARP-135-5801

Not Yet Reviewed

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ARP Main Stud Kits 154-5607

Main Studs, Chromoly, 4-Bolt Main, Ford, Small Block, 351W Dart Iron Eagle Block, Kit

Part Number: ARP-154-5607

5.0 out of 5 stars ( 1 )

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Fleece Performance Freedom Series LSR Aluminum Engine Blocks FPE-LSR-SD10X

Bare Block, LSR, Aluminum, LS Mains, 4.125 in. Bore, 9.25 in. Deck Height, Each

Part Number: FLE-FPELSRSD10X

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ SPC Pro LS Engine Block SUM-150215

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Milodon Main Caps 11050

Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Chevy, Small Block, Set

Part Number: MIL-11050

5.0 out of 5 stars ( 1 )

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Howards Cams Extreme Billet Main Caps H350C

Main Caps, Billet Steel, 3-Center, Straight Outer Bolts, 4-Bolt, Chevy, Small Block, Set of 3

Part Number: HRS-H350C

Not Yet Reviewed

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ARP Main Stud Kits 218-5401

Main Studs, 2-Bolt, Mazda, 1.6, 1.8L, Kit

Part Number: ARP-218-5401

Not Yet Reviewed

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ARP Main Stud Kits 208-5404

Main Studs, 2-Bolt, for use on Acura®, 1.8L, Kit

Part Number: ARP-208-5404

5.0 out of 5 stars ( 2 )

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ARP Main Stud Kits 201-5000

Main Studs, 2-Bolt, BMW, 2.5, 2.8, 3.0, L6, Kit

Part Number: ARP-201-5000

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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ARP Main Stud Kits 203-5404

Main Studs, 2-Bolt Main, Toyota, 2.0L, 3SGTE, Kit

Part Number: ARP-203-5404

5.0 out of 5 stars ( 1 )

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ARP Main Stud Kits 202-5406

Main Studs, 2-Bolt Main, for Nissan, 2.4, 2.6, 2.8L, 6-Cylinder, Kit

Part Number: ARP-202-5406

1.0 out of 5 stars ( 1 )

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ARP Powersports Main Cap Studs for 2008-2011 RXP X 255 - 168-5501

Main Cap Studs, 8740 Chromoly, Black, Hex Head, Crankcase Housing Position, Sea-Doo, Kit

Part Number: ARP-168-5501

Not Yet Reviewed

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ARP Main Stud Kits 204-5408

Main Cap Fasteners, Main Stud Kits, 2-bolt, Stud Style, Standard 12-point Nuts, Washers, Volkswagen, 2.0L, Kit

Part Number: ARP-204-5408

5.0 out of 5 stars ( 2 )

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