Engines, Bare Blocks - 4.250 in. Cylinder Bore Diameter - Free Shipping on Orders Over $109 at Summit Racing

Chevrolet Performance 454 C.I.D. Bare Engine Blocks 19170538

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 )

Estimated Ship Date: Monday 4/28/2025

...Loading

Estimated Ship Date: Monday 4/28/2025

Dart Big M2 Big Block Chevy Cast Iron Bare Blocks 31223344

Dart Big M2 Big Block Chevy Cast Iron Bare Blocks 31223344

Bare Blocks, Dart Big M Series, Cast Iron, 9.80 in. Deck Height, 4.250 Bore, 4-Bolt Main, 2 Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31223344

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2025 if ordered today

...Loading

Estimated Ship Date: Apr 28, 2025 if ordered today

Chevrolet Performance Bowtie Sportsman Race Blocks 19212197

Engine Block, Cast Iron, 4-Bolt Mains, 4.240 in. Diameter Bore, 2-Piece Rear Seal, Chevy, Big Block Mark IV

Part Number: NAL-19212197

Not Yet Reviewed

Estimated Ship Date: Jul 7, 2025 if ordered today

...Loading

Estimated Ship Date: Jul 7, 2025 if ordered today

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

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2025 if ordered today

...Loading

Estimated Ship Date: Jun 11, 2025 if ordered today

World Products Merlin IV Engine Blocks 095000

Engine Block, Cast Iron, 4-Bolt Mains, 4.245 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: WRL-095000

5.0 out of 5 stars ( 2 )

Estimated Ship Date: May 28, 2025 if ordered today

...Loading

Estimated Ship Date: May 28, 2025 if ordered today

Need It Sooner?

We recommend these similar substitute parts:

Chevrolet Performance 454 C.I.D. Bare Engine Blocks 19170538

4.75 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/28/2025

...Loading

Chevrolet Performance Bowtie Sportsman Race Blocks 19212196

Engine Block, Cast Iron, 4-Bolt Mains, 4.240 in. Diameter Bore, 2-Piece Rear Seal, Chevy, Big Block Mark IV

Part Number: NAL-19212196

Not Yet Reviewed

Estimated Ship Date: Jul 7, 2025 if ordered today

...Loading

Estimated Ship Date: Jul 7, 2025 if ordered today

Dart Race Series Big Block Chevy Aluminum Bare Blocks 31264345

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

Part Number: DRT-31264345

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2025 if ordered today

...Loading

Estimated Ship Date: Jun 11, 2025 if ordered today

Dart Big M Big Block Chevy Aluminum Bare Blocks 31264354

Engine Bare Blocks, Dart Big M Series, Aluminum, 10.20 in. Tall Deck, 4.250 in. Bore. 4-Bolt Mains, 2 Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: DRT-31264354

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2025 if ordered today

...Loading

Estimated Ship Date: Jun 11, 2025 if ordered today

Dart Race Series Big Block Chevy Aluminum Bare Blocks 31264355

Engine Block, Race Series, Aluminum, 4-Bolt Mains, 10.2 Deck, 4.250 in. Dia., Bore, 2-Piece Seal, Chevy, Each

Part Number: DRT-31264355

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2025 if ordered today

...Loading

Estimated Ship Date: Jun 11, 2025 if ordered today

Dart Race Series Big Block Chevy Aluminum Bare Blocks 31264385

Engine Block, Race Series, Aluminum, 4-Bolt Mains, 10.0 Deck, 4.250 in. Dia., Bore, 2-Piece Seal, Chevy, Each

Part Number: DRT-31264385

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2025 if ordered today

...Loading

Estimated Ship Date: Jun 11, 2025 if ordered today

Dart Race Series Big Block Chevy Aluminum Bare Blocks 31264395

Engine Block, Race Series, Aluminum, 4-Bolt Mains, 10.4 Deck, 4.250 in. Dia., Bore, 2-Piece Seal, Chevy, Each

Part Number: DRT-31264395

Not Yet Reviewed

Estimated Ship Date: Jun 11, 2025 if ordered today

...Loading

Estimated Ship Date: Jun 11, 2025 if ordered today