Engine Blocks & Parts | Summit Racing

Dart Iron Eagle Mopar Gen III Cast Iron Bare Blocks 31612211

Engine Block, Cast Iron, 4-Bolt Mains, 4.090 in. Bore, 1-Piece Rear Seal, Non-VVT, Dodge, RAM, Hemi, Gen III, Each

Part Number: DRT-31612211

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Milodon Main Stud Kits 81186

Milodon Main Stud Kits 81186

Main Studs, 2-Bolt, Chrysler, 318-360 with Windage Tray, Kit

Part Number: MIL-81186

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Dart Iron Eagle Mopar Gen III Cast Iron Bare Blocks 31612311

Engine Block, Cast Iron, 4-Bolt Mains, 4.125 in. Bore, 1-Piece Rear Seal, Non-VVT, Dodge, RAM, Hemi, Gen III, Each

Part Number: DRT-31612311

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Dart Iron Eagle Mopar Gen III Cast Iron Bare Blocks 31612111

Engine Block, Cast Iron, 4-Bolt Mains, 3.927 in. Bore, 1-Piece Rear Seal, Non-VVT, Dodge, RAM, Hemi, Gen III, Each

Part Number: DRT-31612111

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

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

Not Yet Reviewed

Estimated Ship Date: Mar 18, 2026 if ordered today

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Estimated Ship Date: Mar 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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Estimated Ship Date: Monday 2/16/2026

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World Products 302 C.I.D. Ford Man O'War Blocks 087110

Engine Block, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 1-Piece Rear Main Seal, Ford, Small Block, Each

Part Number: WRL-087110

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

World Products 351 Ford Man O'War Blocks 087150

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

Part Number: WRL-087150

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

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: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Brian Tooley Racing Main Cap Fasteners BTR-LSMAINBOLTKIT

BTR STOCK REPLACEMENT LS MAIN BOLT KIT

Part Number: BTC-S0548

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

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: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Dorman Expansion Plugs 555-049

Engine Expansion Plugs, Steel, 2.094 in. O.D., 0.280 in. Depth, Set of 10

Part Number: RNB-555-049

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Melling Cylinder Sleeves CSL250

Cylinder Sleeve, Cast Iron, 3.000 in. Bore I.D., 0.125 in. Wall Thickness, 6.375 in. Length, Each

Part Number: MEL-CSL250

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

PRW Main Cap Girdles 0944800

Main Cap Girdle, Steel, Black Oxide, Hardware Included, Ford, Kit

Part Number: PQX-0944800

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Melling Engine Expansion Plug Kits MPE-185BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-185BR

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Melling Cylinder Sleeves CSL118

Cylinder Sleeve, Cast Iron, 4.125 in. Bore I.D., 0.094 in. Wall Thickness, 6.125 in. Length, Each

Part Number: MEL-CSL118

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Dorman Expansion Plugs 555-025

Freeze Plugs, Steel, Set of 10

Part Number: RNB-555-025

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

ARP Main Stud Kits 141-5401

Main Studs, 2-Bolt Main, Chrysler, Dodge, Plymouth, 1981-94, 2.2L, Kit

Part Number: ARP-141-5401

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Melling Cylinder Sleeves CSL508

Cylinder Sleeve, Cast Iron, 3.313 in. Bore I.D., 0.125 in. Wall Thickness, 9.250 in. Length, Each

Part Number: MEL-CSL508

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Canton Racing SBC Rear Main Seal Adapters 21-850

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

Part Number: CTR-21-850

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Melling Cylinder Sleeves CSL234

Cylinder Sleeve, Cast Iron, 3.625 in. Bore I.D., 0.125 in. Wall Thickness, 7.000 in. Length, Each

Part Number: MEL-CSL234

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

World Products Merlin IV Engine Blocks 091101

Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.495 in. Bore, 2-Piece Seal, 9.800 in. Deck, Chevy, Big Block, Each

Part Number: WRL-091101

Not Yet Reviewed

Estimated Ship Date: Mar 18, 2026 if ordered today

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Estimated Ship Date: Mar 18, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Dart Big M Sportsman Big Block Chevy Cast Iron Bare Blocks 31223444

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026

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World Products Merlin IV Engine Blocks 091103

Engine Block, Cast Iron, 4-Bolt Mains, 4.245 in. Diameter Bore, 9.800 in. Deck, Nodular Iron Main Caps, 1-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: WRL-091103

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

World Products Merlin IV Engine Blocks 091102

Engine Block, Cast Iron, Nodular Iron Splayed 4-Bolt Mains, 4.595 in. Bore, 2-Piece Seal, 9.800 in. Deck, Chevy, Big Block, Each

Part Number: WRL-091102

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Dorman Rear Main Seal Housings 635-786

Rear Main Seal Cover Kit

Part Number: RNB-635-786

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Melling Cylinder Sleeves CSL165

Cylinder Sleeve, Cast Iron, 3.875 in. Bore I.D., 0.094 in. Wall Thickness, 7.000 in. Length, Each

Part Number: MEL-CSL165

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air