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BluePrint Engines

BluePrint Engines GM Big Block Compatible Bare Engine Blocks

Not Yet Reviewed

When you're building big power, you need a block that's ready to carry the load—and the BluePrint Engines GM Big Block Compatible Bare Engine Blocks are engineered
When you're building big power, you need a block that's ready to carry the load—and the BluePrint Engines GM Big Block Compatible Bare Engine Blocks are engineered to take you all the way to a massive 598 cubic inches. Designed for serious street, strip, and marine performance, they deliver the strength, rigidity, and machining precision needed for high-horsepower combinations. Thick cylinder walls, robust main webbing, and smartly engineered oiling and cooling pathways give builders the confidence to push displacement and power further without sacrificing reliability. Whether you're crafting a torque-heavy cruiser o
When you're building big power, you need a block that's ready to carry the load—and the BluePrint Engines GM Big Block Compatible Bare Engine Blocks are engineered to take you all the way to a massive 598 cubic inches. Designed for serious street, strip, and marine performance, they deliver the strength, rigidity, and machining precision needed for high-horsepower combinations. Thick cylinder walls, robust main webbing, and smartly engineered oiling and cooling pathways give builders the confidence to push displacement and power further without sacrificing reliability. Whether you're crafting a torque-heavy cruiser or a high-rpm bruiser, the BluePrint Engines GM Big Block Compatible Bare Engine Blocks are a rock-solid starting point your big-inch Chevy build.

Key technical specifications:

* High-strength cast iron (EN-GJL-250)
* Main caps: 4-bolt splayed (Ductile iron or Billet steel options)
* Deck Heights: 9.800-inch or 10.200-inch
* Bore Sizes: 4.500-inch or 4.600-inch (Siamese bores)
* Rear Main Seal: 2-piece
* Max Displacement: capable of up to 632+ cubic inches
* Max Stroke: 4.750-inches
* Weight: approximately 240-260 lbs. (with caps)
* Features: Priority main oiling, extended cylinder skirts for stroker clearance, and .310 inches nominal wall thickness at max bore

All the results found for this search are Not In Stock.

Results 1 - 11 of 11

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110324

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110324

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110324

Engine Block BBC, 2PC, SIAM, 9.800 x 4.500, CAST MC

Part Number: MLL-BPP12110324

Not Yet Reviewed

Estimated Ship Date: Jun 18, 2026 if ordered today

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Estimated Ship Date: Jun 18, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110330

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110330

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110330

Engine Block BBC, 2PC, SIAM, 9.800 x 4.600, BILLET MC

Part Number: MLL-BPP12110330

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110329

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110329

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110329

Engine Block BBC, 2PC, SIAM, 10.200 x 4.500, CAST MC

Part Number: MLL-BPP12110329

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110325

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110325

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110325

Engine Block BBC, 2PC, SIAM, 10.200 x 4.500, BILLET MC

Part Number: MLL-BPP12110325

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110333

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110333

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110333

Engine Block BBC, 2PC, SIAM, 10.200 x 4.250, BILLET MC

Part Number: MLL-BPP12110333

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110328

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110328

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110328

Engine Block BBC, 2PC, SIAM, 9.800 x 4.600, CAST MC

Part Number: MLL-BPP12110328

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110332

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110332

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110332

Engine Block BBC, 2PC, SIAM, 9.800 x 4.250, BILLET MC

Part Number: MLL-BPP12110332

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110334

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110334

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110334

Engine Block BBC, 2PC, SIAM, 9.800 x 4.560, BILLET MC

Part Number: MLL-BPP12110334

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110327

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110327

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110327

Engine Block BBC, 2PC, SIAM, 9.800 x 4.500, BILLET MC

Part Number: MLL-BPP12110327

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110331

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110331

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110331

Engine Block BBC, 2PC, SIAM, 10.200 x 4.600, BILLET MC

Part Number: MLL-BPP12110331

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110326

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110326

BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110326

Engine Block BBC, 2PC, SIAM, 10.200 x 4.600, CAST MC

Part Number: MLL-BPP12110326

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

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