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#227BPP12110333
$4,799.99
/each
Factory Shipped
Quantity
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Universal Fit, 4.250" Bore Size, Cast Iron, No
| MFG. Part # | BPP12110333 |
| Brand | BluePrint Engines |
| Main Journal Style | 454 mains |
| Deck Height | 10.200" |
| Material Type | Cast Iron |
Made to Order
This custom item will ship when completed
Truck Shipment
Truck shipments must be pre-paid with a credit card, certified check or money order
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855.313.9176Quick and Easy Returns
Return PolicyWhen you’re building big power, you need a block that’s ready to carry the load—and this BBC-compatible foundation is engineered to take you all the way to a massive 632 cubic inches. Designed for serious street, strip, and marine performance, this block delivers 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, this block is the rock-solid starting point your big-inch Chevy build deserves.
Cylinder Bore (Rough):
4.245" to 4.247"
Cylinder Bore (Max):
4.630"
Cam Bearings:
Durabond GM-12
Cam Bearing Bore ID:
2.120"+/- .001"
Camshaft Position:
OEM
Cam Drive / Timing Set:
OEM / Double Roller
Cam Retaining Plate:
OEM
Cubic Inch (Max):
632
Cylinder Wall Thickness:
.310" Nominal @ Max Bore
Cylinder Skirt Length:
6.700" Nominal
Deck Height:
10.200" +.005" / -.000"
Deck Thickness:
.710" Nominal
Freeze / Core Plugs:
1-5/8" x 8
Head Bolt / Stud Threads:
7/16-14 UNC
Lifter Bores:
.8437" +/- .0003"
Lifter Retainer (If not using tie bar lifters):
OEM W/Roller Provisions
Main Bearing Bore (Line Honed):
2.937" - 2.938"
Main Bearing Caps:
Billet Steel
Main Cap Bolts:
1/2"-13 UNC
Main Fastener Tensile Strength:
180,000 to 210,000 PSI
Material (Block):
EN-GJL-250 Iron
Oil System:
Priority Main
Oil Pump:
OEM
Oil Filter:
OEM
Oil Pan:
OEM (GEN IV)
Rear Main Seal:
2 piece - Seal (OEM GEN IV)
Starter:
OEM
Stroke (Max):
4.750"
Timing Cover:
OEM GEN IV
Approx. Weight with Main Caps:
250-270lbs
For race/ off road use or for use on pre-1966 vehicles.
| KEY SPECS | |
|---|---|
| MFG. Part # | BPP12110333 |
| Brand | BluePrint Engines |
| Main Journal Style | 454 mains |
| Deck Height | 10.200" |
| Material Type | Cast Iron |
| GENERAL | |
| Bore Size | 4.250" |
| Rear Main Seal Style | 2-piece |
| Sold in Quantity | Each |
| Freeze Plugs Included | No |
| Cam Bearings Included | No |
| Weight | 270 lbs. |
| Finished Cylinder Bores | No |
| Main Bearings Included | No |
| Main Cap Fasteners Included | Yes |
| Main Cap Material | Billet Steel |
| Main Caps Included | Yes |
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