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Blueprint Engines Gm 383 C.I.D. 445 Hp Dressed Power Adder Stroker Long Block Crate Engines Bp38317Ct1
$4,200.00
The Blueprint Engines BP38317CT1 GM 383 C.I.D. dressed power adder long block crate engine delivers approximately 445 horsepower and 450 lb-ft of torque under factory test conditions. Designed for forced-induction or nitrous applications, this stroker engine provides a strong foundation for reliable, high-performance builds using 100% new components.
Condition: New
The Blueprint Engines GM 383 C.I.D. 445 HP Dressed Power Adder Stroker Long Block Crate Engine (BP38317CT1) is engineered to handle the demands of supercharged, turbocharged, or nitrous-assisted applications.
Based on the proven GM small block platform, this 383 cubic inch stroker engine combines forged internals with a precision-balanced rotating assembly, ensuring the strength and reliability required for power-adder setups. Each engine is fully assembled, blueprinted, and dyno-tested in the USA using 100% new components, never remanufactured parts.
The hydraulic roller camshaft, forged crankshaft, and high-performance aluminum heads create a durable foundation for high boost or nitrous configurations while maintaining consistent power and drivability.
As a dressed long block, this package includes essential components such as valve covers, timing cover, and oil pan, allowing for a straightforward installation and customization with your preferred induction system.
Performance Overview:
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Factory-tested output: approx. 445 HP / 450 lb-ft torque
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Optimized for supercharger, turbocharger, or nitrous applications
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Fully balanced and dyno-tested assembly built in the USA
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Constructed from 100% new high-strength components
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Ideal for muscle cars, street performance, or drag builds
Key Highlights:
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GM 383 cubic inch small block stroker design
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Forged rotating assembly for high load durability
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Hydraulic roller camshaft for smooth performance and longevity
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Aluminum performance heads for efficient airflow and cooling
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Precision-balanced for reliable operation at high RPM
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Dressed configuration includes oil pan, valve covers, and timing cover
Ideal Applications:
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Classic GM vehicles with performance upgrades
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Turbocharged or supercharged builds
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Nitrous-assisted street or strip projects
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Custom performance restorations and restomods
Important Notes:
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Horsepower and torque values are approximate factory test results; actual output may vary based on intake, boost level, and tuning setup.
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Intake manifold, fuel system, and ignition components are not included.
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This engine is not approved for use in emissions-controlled vehicles unless otherwise specified.
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Professional installation and custom tuning are recommended for boosted or nitrous configurations.
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | Blueprint Engines |
| Model Number | BP38317CT1 |
| Series | GM Small Block Power Adder |
| Engine Type | Chevrolet Small Block V8 |
| Configuration | Dressed Long Block Crate Engine |
| Displacement | 383 Cubic Inches (C.I.D.) |
| Horsepower (Factory Tested) | Approx. 445 HP |
| Torque (Factory Tested) | Approx. 450 lb-ft |
| Fuel System Compatibility | Carbureted or EFI (not included) |
| Fuel Type | Gasoline |
| Block Material | Cast Iron |
| Cylinder Heads | Aluminum |
| Compression Ratio | Approx. 9.5:1 (ideal for power adder use) |
| Camshaft Type | Hydraulic Roller |
| Crankshaft | Forged Steel |
| Pistons | Forged Aluminum |
| Connecting Rods | Forged Steel |
| Cooling System | Liquid-cooled |
| Condition | Brand New (Factory Built) |
| Country of Origin | United States |
| Included Components | Assembled long block with aluminum heads, forged internals, valve covers, timing cover, and oil pan |
| Applications | Forced-induction builds, performance restorations, GM small block conversions |
Compliance & Disclaimer
All horsepower and torque values are approximate factory dynamometer results provided by Blueprint Engines under controlled test conditions.
Actual results depend on intake, exhaust, boost level, and tuning configuration.
This engine is sold as a dressed long block, requiring additional components (fuel system, intake, ignition, accessories).
Not certified for use in emissions-controlled vehicles unless specified by the manufacturer.
Professional installation and tuning are strongly recommended for proper operation and reliability.
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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.







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