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Blueprint Engines Gm 396 C.I.D. 491Hp Stroker Dressed Long Block Crate Engines Bp3961Ctc
$3,600.00
Factory-built 396 C.I.D. Stroker Dressed Long Block by Blueprint Engines. Delivers approximately 491 HP and 509 lb-ft of torque. Dyno-tested, street-ready, and assembled in the USA.
Condition: New
The Blueprint Engines BP3961CTC is a 396 cubic inch displacement (C.I.D.) Stroker Dressed Long Block Crate Engine, built by Blueprint Engines for enthusiasts seeking a balanced mix of power, reliability, and turn-key installation ease.
This dressed long block is based on the proven GM small block platform, precision-assembled using new high-quality components. Each engine is dyno-tested and verified at the Blueprint Engines facility to confirm horsepower, torque, oil pressure, and overall operation before shipping.
Performance Overview:
Factory-tested to produce approximately 491 horsepower and 509 lb-ft of torque, the BP3961CTC offers strong mid-range power and smooth drivability for street performance, hot rods, and muscle car restorations.
Key Highlights:
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Precision-built 396 C.I.D. stroker engine based on GM small block architecture
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Factory-assembled dressed long block — includes key external components
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Dyno-tested and quality-verified prior to shipment
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Ideal for street performance and custom vehicle builds
Important Notes:
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Horsepower and torque values are approximate factory test results; actual output may vary depending on carburetor, ignition, exhaust, and tuning.
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Sold as a dressed long block — includes assembled short block, cylinder heads, and select external accessories; some components may need to be added for installation.
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Professional installation is recommended.
About Blueprint Engines:
Blueprint Engines is an American manufacturer of precision-built crate engines for street and performance vehicles. Each engine undergoes detailed inspection, computer-balanced assembly, and complete dynamometer verification to ensure performance reliability.
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | Blueprint Engines |
| Model Number | BP3961CTC |
| Engine Type | GM Small Block V8 |
| Configuration | Stroker Dressed Long Block |
| Displacement | 396 Cubic Inches (C.I.D.) |
| Horsepower (Factory Tested) | Approx. 491 HP |
| Torque (Factory Tested) | Approx. 509 lb-ft |
| Fuel Type | Gasoline |
| Cooling System | Liquid-cooled |
| Block Material | Cast Iron |
| Cylinder Heads | Aluminum |
| Compression Ratio | Approx. 10.0:1 |
| Camshaft Type | Hydraulic Roller |
| Condition | Brand New (Factory Built) |
| Country of Origin | United States |
| Included Components | Fully assembled short block with cylinder heads, valve covers, oil pan, timing cover, and select accessories pre-installed |
| Applications | GM small block–based cars, street performance builds, classic restorations, and hot rods |
Compliance & Disclaimer
All horsepower and torque ratings are approximate manufacturer test values verified by Blueprint Engines under controlled conditions.
Actual performance results may vary depending on supporting components and tuning.
This engine is a dressed long block configuration, and may require additional accessories or components for final installation.
Not certified for use in emissions-controlled vehicles unless approved by local regulations.
Professional installation is strongly recommended.
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Return Policy
FourToolz accepts returns within 30 days of delivery for items that are unused, in their original packaging, and include all accessories.
Customers are responsible for return shipping costs unless the product is defective or incorrectly shipped.
For detailed information, please review our full Return Policy or contact us at sales@fourtoolz.com.






