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Charts & Guides for Part Number MLL-BPP12110324
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BluePrint Engines GM Big Block Compatible Bare Engine Blocks BPP12110324
Part Number: MLL-BPP12110324
BluePrint Engines GM Big Block Compatible Bare Engine Blocks
Engine Block BBC, 2PC, SIAM, 9.800 x 4.500, CAST MC
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Estimated Ship Date: Dec 18, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
BPP12110324
Part Type:
Product Line:
Summit Racing Part Number:
MLL-BPP12110324
Item Number:
8716267
UPC:
00887753979575
Main Journal Type:
Chevy 454
Engine Block Material:
Cast iron
Engine Block Style:
Aftermarket
Engine Block Deck Height:
Standard deck
Deck Height (in.):
9.800 in.
Cylinder Bore as Shipped:
4.489 in.
Maximum Bore Diameter (in.):
4.630
Camshaft Location:
Standard
Engine Block Weight (lbs.):
260 lbs.
Main Caps Included:
Yes
Main Cap Material:
Cast iron
Main Cap Fasteners Included:
Yes
Main Bearings Included:
No
Rear Main Seal Style:
2-piece
Finished Cylinder Bores:
No
Raised Cam Location:
No
Cam Bearings Included:
No
Freeze Plugs Included:
No
Remanufactured:
No
Quantity:
Sold individually.
Special Attention:
Cylinder bore as shipped is within the range of 4.489 in. to 4.491 in. diameter.
BluePrint Engines GM Big Block Compatible Bare Engine Blocks
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
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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