Summit Racing SpeedCard - learn how to get 15% back up to $150

Summit Racing SpeedCard - learn how to get 15% back up to $150

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Engine Blocks & Parts

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Results 1 - 25 of 234

Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 6 Head bolt Pattern, 9.240 in. Std. Deck 4.125 in. Bore, GenIII/IV LS Chevrolet, Each

Part Number: SUM-150216

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Engine Block, Cast Iron , 4-Bolt Mains, 4.125 in. Bore, 1-Piece Rear Main Seal, Ford 351, Small Block, Each

Part Number: DRT-31375235

5.0 out of 5 stars ( 3 )

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Bare Block, Cast Iron, LS Mains, 4.125 in. Bore, 9.24 in. Deck Height, Each

Part Number: DRT-31867212

5.0 out of 5 stars ( 1 )

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Engine Block, Cast Iron, 400 Mains, 4.115 in. Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: DRT-31162211

4.25 out of 5 stars ( 4 )

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Engine Block, 350 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.000 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal

Part Number: SUM-150200

5.0 out of 5 stars ( 7 )

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Engine Block, LSX Bowtie, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.240 in. Standard Deck, Chevrolet, Each

Part Number: NAL-19417352

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Engine Blocks, Bare, 460 C.I.D. Siamese Bore, Cast Iron, Standard Deck Height, Ford 385 Series Main Journal Type, Ford, Each

Part Number: FMS-M6010A460XBB

5.0 out of 5 stars ( 1 )

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Engine Block, Cast Iron, 4-Bolt Mains, 4.250 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: NAL-19170538

4.89 out of 5 stars ( 9 )

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Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 400 Mains, 4.125 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal

Part Number: SUM-150201

5.0 out of 5 stars ( 1 )

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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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Engine Block, Summit, Big Block Chevrolet, Bare, Cast Iron, 4-bolt Main Bolt Style, 10.200 in. Tall Deck, 4.600 in. Bore, Each

Part Number: SUM-150213

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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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Engine Block, Cast Iron, 4-Bolt Mains, 4.360 in. Diameter Bore, 2-Piece Rear Main Seal, Siamese Bore, Ford, Big Block, Each

Part Number: FMS-M-6010-A460X

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Engine Block, Summit, Big Block Chevrolet, Bare, Cast Iron, 4-bolt Main Bolt Style, 9.800 in. Standard Deck, 4.500 in. Bore, Each

Part Number: SUM-150210

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Engine Block, Summit, Big Block Chevrolet, Bare, Cast Iron, 4-bolt Main Bolt Style, 9.800 in. Standard Deck, 4.600 in. Bore, Each

Part Number: SUM-150211

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

Part Number: SUM-G2621

2.35 out of 5 stars ( 17 )

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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 ( 31 )

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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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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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Main Bolts, Outer Bolts, With Windage Tray, Chevy, LS, Each

Part Number: NAL-12560273

5.0 out of 5 stars ( 4 )

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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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Adapter, Oil Cooler, Billet Aluminum, Black Anodized, GM, LS, Each

Part Number: DER-35611

5.0 out of 5 stars ( 1 )

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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: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

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