Engine Blocks & Parts | Summit Racing

PRW Billet Steel Main Caps 1738901

Main Caps, Billet Steel, 4-Bolt Conversion or Replacement, Straight, 326-400 cid, V8, Dowel Pinned, Drill Guide, Small Journal, Pontiac, Set of 3

Part Number: PQX-1738901

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Estimated Ship Date: Jun 12, 2026 if ordered today

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Estimated Ship Date: Jun 12, 2026 if ordered today

Howards Cams Extreme Billet Main Caps H350F

Howards Cams Extreme Billet Main Caps H350F

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

Part Number: HRS-H350F

5.0 out of 5 stars ( 1 )

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Engine Works Engine Finishing Kits 46503

Engine Finishing, Head Dowels, Cam Bolt, Crank Key, Oil Pump Dowel, Fuel Pump Eccentric, Small Ford, Kit

Part Number: EW1-46503

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COMP Cams Engine Finishing Kits 241

Engine Finishing Hardware, Head Dowels, Woodruff Keys, Cam Bolts, Chrysler, Dodge, Plymouth, Small Block, Kit

Part Number: CCA-241

5.0 out of 5 stars ( 3 )

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BTR Main Cap Fasteners BTR60272

Main Cap Fastener, Bolt, 6-bolt Main Bolt Style, External Hex Head, Chevrolet, Small Block LS, Each

Part Number: BTC-BTR60272

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Proform Freeze Plug Kits 66553

Freeze Plugs, Brass, Ford, Small Block, 289-302-351W, Kit

Part Number: PRO-66553

3.5 out of 5 stars ( 2 )

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World Products Man O'War Bare Blocks 087082

Engine Block, Cast Iron, 4-Bolt Mains, 4.115 in. Diameter Bore, 2-Piece Rear Main Seal, Ford, Small Block, Each

Part Number: WRL-087082

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Dura-Bond Engine Hardware Finishing Kits FKC-7B

Engine Hardware Kits, Engine Hardware Finishing Kits, Cylinder Head Dowels, Cam Thrust Plate Bolts, Woodruff Keys, Chevrolet, Small Block LS, Kit

Part Number: DUR-FKC-7B

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Dura-Bond Engine Hardware Finishing Kits FKC-1

Engine Hardware, Cylinder Head Dowels, Woodruff Keys, Oil Pump Dowel, Cam Bolts, Chevy, Small Block, Kit

Part Number: DUR-FKC-1

5.0 out of 5 stars ( 4 )

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ARP Main Stud Kits 134-5403

Main Studs, 2-Bolt Main, Chevy, Small Block, Large Journal, 12-Point

Part Number: ARP-134-5403

5.0 out of 5 stars ( 1 )

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Billet Specialties LS Valley Covers 95055

Engine Valley Cover, Gen. 4 LS2/LS3/LS7, Aluminum, Natural, Chevy, Small Block LS, Each

Part Number: BSP-95055

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Milodon Main Caps 11053

Main Cap, Ductile Iron, Front, Angled Outer Bolts, 4-Bolt, Chevy, Small Block, Each

Part Number: MIL-11053

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jul 6, 2026 if ordered today

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Estimated Ship Date: Jul 6, 2026 if ordered today

Moroso Rear Main Seal Adapter Kits 38315

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Each

Part Number: MOR-38315

5.0 out of 5 stars ( 6 )

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World Products 351 Ford Man O'War Blocks 087182

Engine Block, Cast Iron, 4-Bolt Mains, 4.115 in. Diameter Bore, 1-Piece Rear Main Seal, Ford, Small Block, Each

Part Number: WRL-087182

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Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ SPC Ford 351W Engine Block SUM-150205

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Milodon Main Caps 11300

Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Mopar, Small Block LA, 5.2/5.6L, Set

Part Number: MIL-11300

5.0 out of 5 stars ( 1 )

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PRW Billet Steel Main Caps 1740002

Main Caps, Billet Steel, 4-Bolt, Angled, Chevy, Small Block, Set of 3

Part Number: PQX-1740002

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Summit Racing™ Extreme Duty Main Cap Bolts SUM-910203-PRO

Main Bolts, Extreme Duty, 4-bolt Style, 6-point, Premium Quality, 190,000 psi Yield Strength, Washers, Chevy, Small Block, Kit

Part Number: SUM-910203-PRO

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Ford Performance Parts 351 Aluminum Windsor Engine Blocks for 1969-1970 MUSTANG - M-6010-Z35192

Engines, Bare Blocks, 351 Aluminum Windsor Engine Block, 351 Windsor Mains, 9.200 in. Deck Height, 4-bolt Main, Ford, V8, Small Block Windsor, Each

Part Number: FMS-M6010Z35192

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Ford Performance Parts Expansion Plugs M-6026-S351

Expansion Plug, Camshaft, Aluminum, Small Block, 5.0L, 5.8L, Set of 10

Part Number: FMS-M-6026-S351

4.67 out of 5 stars ( 3 )

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BTR Engine Coolant Plugs BTR88949

Engine Expansion Plugs, BTR Small Coolant Plug, Zinc Plated

Part Number: BTC-BTR88949

5.0 out of 5 stars ( 1 )

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PRW Billet Steel Main Caps 1735101

Main Caps, Billet Steel, 4-Bolt, Straight, Ford, Small Block, Set of 3

Part Number: PQX-1735101

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Mr. Gasket Freeze Plug Kits for 2008-2014 YUKON XL 1500, 2000-2013 YUKON XL 2500 - 61210G

Freeze Plugs, Brass, Threaded, Chevy, Small Block LS, Kit

Part Number: MRG-61210G

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World Products 351 Ford Man O'War Blocks 087172

Engine Block, Cast Iron, 4-Bolt Mains, 3.990 in. Diameter Bore, 1-Piece Rear Main Seal, Ford, Small Block, Each

Part Number: WRL-087172

5.0 out of 5 stars ( 3 )

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Summit Racing™ Main Stud Kits SUM-910204

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 )

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Howards Cams Extreme Billet Main Caps H350R-1

Main Cap, Billet Steel, 3-Center, Straight Outer Bolts, 4-Bolt, Chevy, Small Block, Each

Part Number: HRS-H350R-1

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