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

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

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Bare Engine Blocks

Whether you’re building a new engine or recovering from an under-the-hood incident you’d rather soon forget, explore our large selection of aftermarket bare...

Whether you’re building a new engine or recovering from an under-the-hood incident you’d rather soon forget, explore our large selection of aftermarket bare engine blocks to complete your new power plant project. We have V6, V8, and L4 engine block types, and bare blocks of various materials including aluminum, billet aluminum, steel, cast iron, and ductile iron. Find the perfect foundation for your Chevy, Ford, or Mopar build-up, including Chevy 350 and 454, Ford 302 and 351w, Hemi, Corvette, LS, and LSX engines. Explore Summit Racing’s vast selection today!

Whether you’re building a new engine or recovering from an under-the-hood incident you’d rather soon forget, explore our large selection of aftermarket bare engine blocks to complete your new power plant project. We have V6, V8, and L4 engine block types, and bare blocks of various materials including aluminum, billet aluminum, steel, cast iron, and ductile iron. Find the perfect foundation for your Chevy, Ford, or Mopar build-up, including Chevy 350 and 454, Ford 302 and 351w, Hemi, Corvette, LS, and LSX engines. Explore Summit Racing’s vast selection today!

Individual Parts

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Results 1 - 25 of 97

Summit Racing™ SPC Small Block Chevy 350 Engine Block SUM-150200

Summit Racing™ SPC Small Block Chevy 350 Engine Block SUM-150200

Summit Racing™ SPC Small Block Chevy 350 Engine Block SUM-150200

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 )

Estimated Ship Date: Tomorrow

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Summit Racing™ SPC Small Block Chevy 400 Engine Block SUM-150201

Summit Racing™ SPC Small Block Chevy 400 Engine Block SUM-150201

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 )

Estimated Ship Date: Tomorrow

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Summit Racing™ SPC Engine Blocks SUM-150202

Summit Racing™ SPC Engine Blocks SUM-150202

Summit Racing™ SPC Engine Blocks SUM-150202

Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal

Part Number: SUM-150202

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Summit Racing™ SPC Pro LS Block SUM-150216

Summit Racing™ SPC Pro LS Block SUM-150216

Summit Racing™ SPC Pro LS Block SUM-150216

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

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ SPC LS Engine Block SUM-150215

Summit Racing™ SPC LS Engine Block SUM-150215

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Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711213

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711213

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711213

Bare Blocks, Dart Race Series, Aluminum, 9.025 in Deck, 4.125 in.Bore, 4-Bolt Mains, 2-Piece Rear Main Seals,50mm Cam Tunnel,Small Block, Chevy, Each

Part Number: DRT-31711213

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711132

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711132

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711132

Bare Blocks, Dart Race Series, Aluminum, 9.500 in Deck, 4.00 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711132

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712132

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712132

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712132

Bare Blocks, Dart Race Series, Aluminum, 9.500 in Deck, 4.000 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31712132

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712232

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712232

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712232

Bare Blocks, Dart Race Series, Aluminum, 9.500 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31712232

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712242

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712242

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712242

Bare Blocks, Dart Race Series, Aluminum, 9.075 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31712242

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711112

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711112

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711112

Bare Blocks, Dart Race Series, Aluminum, 9.025 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711112

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711122

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711122

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711122

Bare Blocks, Dart Race Series, Aluminum, 9.325 in Deck, 4.00 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711122

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712112

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712112

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712112

Bare Blocks, Dart Race Series, Aluminum, 9.025 in Deck, 4.000 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31712112

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712122

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712122

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712122

Bare Blocks, Dart Race Series, Aluminum, 9.325 in Deck, 4.000 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31712122

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712223

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712223

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712223

Bare Blocks, Dart Race Series, Aluminum, 9.325 in Deck, 4.125 in. Bore, 4-Bolt Mains,50mm Cam Tunnel, 2-Piece Rear Main Seals,Small Block,Chevy, Each

Part Number: DRT-31712223

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711152

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711152

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711152

Bare Blocks, Dart Race Series, Aluminum, 8.850 in Deck, 4.00 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711152

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711212

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711212

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711212

Bare Blocks, Dart Race Series, Aluminum, 9.025 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711212

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711232

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711232

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711232

Bare Blocks, Dart Race Series, Aluminum, 9.500 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711232

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711242

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711242

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711242

Bare Blocks, Dart Race Series, Aluminum, 9.075 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711242

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711252

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711252

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711252

Bare Blocks, Dart Race Series, Aluminum, 8.850 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711252

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712142

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712142

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712142

Bare Blocks, Dart Race Series, Aluminum, 9.075 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31712142

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712213

Made in the USA

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712213

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712213

Bare Blocks, Dart Race Series, Aluminum, 9.025 in Deck, 4.125 in. Bore, 4-Bolt Mains, 50mm Cam Tunnel,2-Piece Rear Main Seals,Small Block,Chevy, Each

Part Number: DRT-31712213

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

Summit Racing™ SPC Big Block Chevy Engine Block SUM-150210

Summit Racing™ SPC Big Block Chevy Engine Block SUM-150210

Summit Racing™ SPC Big Block Chevy Engine Block SUM-150210

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

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Summit Racing™ SPC Big Block Chevy Engine Block SUM-150213

Summit Racing™ SPC Big Block Chevy Engine Block SUM-150213

Summit Racing™ SPC Big Block Chevy Engine Block SUM-150213

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

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Chevrolet Performance LSX Bowtie Engine Blocks 19417352

Chevrolet Performance LSX Bowtie Engine Blocks 19417352

Chevrolet Performance LSX Bowtie Engine Blocks 19417352

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

Part Number: NAL-19417352

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Chevrolet Performance LSX Bowtie Engine Blocks 19417351

Chevrolet Performance LSX Bowtie Engine Blocks 19417351

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: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ SPC LS Engine Block SUM-150215

Summit Racing™ SPC LS Engine Block SUM-150215

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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