Engine Blocks & Parts | Summit Racing

Ford Performance Parts Boss 302 Engine Blocks for 1985-1995 MUSTANG - M-6010-BOSS302

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

Part Number: FMS-M6010BOSS302

5.0 out of 5 stars ( 3 )

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ARP Main Stud Kits 244-5400

ARP Main Stud Kits 244-5400

Main Studs, Chromoly, Hex Head, 2-Bolt, Chrysler, Dodge, 5.7/6.1L, Kit

Part Number: ARP-244-5400

5.0 out of 5 stars ( 7 )

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Dorman Rear Main Seal Covers 635-518

Rear Main Seal Cover, Aluminum, Natural, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Kit

Part Number: RNB-635-518

3.89 out of 5 stars ( 9 )

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Summit Racing™ Freeze Plugs SUM-G1584

Engine block coolant and oil plug kit, Threaded Engine Block Oil/Coolant passage Plugs, Brass/Steel, Oil Plug and barbell, Chevy, GM LS GenIII/IV, Kit

Part Number: SUM-G1584

4.72 out of 5 stars ( 29 )

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Summit Racing™ SPC Engine Blocks SUM-150203

Engine Block, 350 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.000 in. Unfinished Bore Diameter, 1-Piece Rear Main Seal

Part Number: SUM-150203

5.0 out of 5 stars ( 2 )

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Summit Racing™ LS Rear Main Seal Housings SUM-G2621

Housing, Rear Main Seal, Aluminum, Chevy, LS, Each

Part Number: SUM-G2621

2.35 out of 5 stars ( 17 )

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ARP High Performance Series Main Bolts 134-5202

Main Bolts, High Performance Series, 4-Bolt Main, Large Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5202

4.97 out of 5 stars ( 36 )

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ARP Main Stud Kits 134-5601

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

Part Number: ARP-134-5601

4.96 out of 5 stars ( 25 )

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ARP Main Stud Kits 135-5601

Main Studs, 4-Bolt Main, Chevy, Big Block, Kit

Part Number: ARP-135-5601

5.0 out of 5 stars ( 8 )

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Dart SHP Special High Performance Small Block Ford Cast Iron Bare Blocks 31374275

Engine Block, Cast Iron , 4-Bolt Mains, 4.125 in. Bore, 1-Piece Rear Main Seal, Ford 302, Small Block, Each

Part Number: DRT-31374275

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Dart Iron Eagle Mopar Gen III Cast Iron Bare Blocks 31622211

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

Part Number: DRT-31622211

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

ARP High Performance Series Main Bolts 154-5001

Main Bolts, High Performance Series, 2-Bolt Main, Ford, 289-302, Small Block, Kit

Part Number: ARP-154-5001

4.94 out of 5 stars ( 32 )

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Melling Freeze Plugs MPE-100BR

Freeze Plugs, Brass, Chevy, Small Block, Kit

Part Number: MEL-MPE-100BR

4.65 out of 5 stars ( 20 )

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Dart Big M Big Block Chevy Aluminum Bare Blocks 31264344

Engine Block, Aluminum, 4-Bolt Mains, 4.250 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: DRT-31264344

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ARP Main Stud Kits 156-5803

Main Studs, 6-Bolt Main, Ford, 5.0L, Modular, Coyote Engine, Kit

Part Number: ARP-156-5803

5.0 out of 5 stars ( 3 )

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ARP Main Stud Kits 134-5401

Main Studs, 2-Bolt Main, Large Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5401

5.0 out of 5 stars ( 17 )

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Summit Racing™ Freeze Plugs SUM-G1582

Freeze Plugs, Brass, Chevy, Big Block, 396-454, Kit

Part Number: SUM-G1582

4.86 out of 5 stars ( 14 )

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ICT Billet Oil Cooler Port Delete Plates 551621

Oil Cooler Block-Off Plate, Aluminum, Natural, GM, LS, Each

Part Number: ICB-551621

4.74 out of 5 stars ( 39 )

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ARP High Performance Series Main Bolts 134-5001

Main Bolts, High Performance Series, 2-Bolt Main, Large Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5001

4.86 out of 5 stars ( 35 )

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Trick Flow® Main Stud Race Girdles for Ford TFS-5150R700

Main Girdle, Race Version, Stud, Tool Steel, Ford, 289/302, Kit

Part Number: TFS-5150R700

4.2 out of 5 stars ( 5 )

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ARP Main Stud Kits 156-5802

Main Studs, 4-Bolt Main, Ford, 4.6/5.4L, 2V/3V/4V Without Windage Tray, Kit

Part Number: ARP-156-5802

4.5 out of 5 stars ( 6 )

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Ford Performance Parts Main Stud and Bolt Kits for 2011-2018 MUSTANG - M-6345-M52

Main Cap Fasteners, 5.2L GT350 and 5.0L Coyote Blocks, Torque-To-Yield Bolts, Set of 30

Part Number: FMS-M-6345-M52

5.0 out of 5 stars ( 1 )

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Summit Racing™ SPC Engine Blocks SUM-150215

Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.240 in. Std Deck, 4 Head Bolt, 4.065 in. Bore, GenIII/IV LS Chevrolet, 6.0/6.2, Each

Part Number: SUM-150215

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Moroso Oil Galley Barbell Plugs 25030

Oil Galley Plug, Aluminum, Chevy, LS, Each

Part Number: MOR-25030

5.0 out of 5 stars ( 3 )

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Chevrolet Performance LSX Bowtie Engine Blocks 19417351

Engine Block, LSX Bowtie, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.260 in. Standard Deck, Semi Finished, Chevrolet, Each

Part Number: NAL-19417351

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today

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Dart LS Next Cast Iron Bare Blocks 31867211

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