Blueprint Engines Gm 400 C.I.D. 508 Hp Dressed Long Block Crate Engines Bp4002Ctc1
$3,600.00
The Blueprint Engines BP4002CTC1 is a GM 400 cubic-inch dressed long block crate engine rated at approximately 508 HP and 473 lb-ft of torque. Factory-built, dyno-tested, and ready for GM small block–based performance applications.
Condition: New
The Blueprint Engines BP4002CTC1 is a GM 400 cubic-inch (C.I.D.) stroker dressed long block crate engine, precision-built and dyno-verified by Blueprint Engines in the United States.
This engine expands on the legendary GM small block design, delivering exceptional horsepower and torque for street performance, muscle cars, and custom builds. Each unit is assembled entirely from new components, computer-balanced, and dyno-tested to confirm performance and reliability before shipment.
The dressed long block configuration includes pre-installed aluminum cylinder heads, intake manifold, timing cover, valve covers, and oil pan — simplifying installation for builders seeking both performance and convenience.
Performance Overview:
Factory testing confirms output around 508 horsepower and 473 lb-ft of torque, providing a strong mid-range and high-RPM response ideal for performance applications.
Key Highlights:
-
GM 400 C.I.D. stroker design for increased displacement and power
-
Dressed long block configuration with essential components pre-installed
-
Factory dyno-tested for verified horsepower and torque
-
Built entirely from new components (no remanufactured parts)
-
Ideal for GM-based street rods, restorations, and performance builds
Important Notes:
-
Horsepower and torque values are approximate factory test results and may vary based on carburetion, ignition, and exhaust systems.
-
Additional accessories (fuel system, ignition, pulleys, etc.) are not included unless specified.
-
Professional installation is recommended to ensure correct setup and tuning.
About Blueprint Engines:
Blueprint Engines is a U.S. manufacturer specializing in precision-built crate engines for performance, restoration, and custom applications. Every engine is assembled using new components and dyno-verified for consistent output and reliability.
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | Blueprint Engines |
| Model Number | BP4002CTC1 |
| Engine Type | GM Small Block Stroker |
| Configuration | Dressed Long Block Crate Engine |
| Displacement | 400 Cubic Inches (C.I.D.) |
| Horsepower (Factory Tested) | Approx. 508 HP |
| Torque (Factory Tested) | Approx. 473 lb-ft |
| Fuel Type | Gasoline |
| Fuel Delivery | Compatible with carbureted or EFI systems (not included) |
| Cooling System | Liquid-cooled |
| Block Material | Cast Iron |
| Cylinder Heads | Aluminum |
| Compression Ratio | Approx. 10.5:1 |
| Camshaft Type | Hydraulic Roller |
| Condition | Brand New (Factory Built) |
| Country of Origin | United States |
| Included Components | Dressed long block assembly with heads, intake manifold, valve covers, oil pan, and timing cover |
| Applications | GM small block–based performance cars, hot rods, and custom street builds |
Compliance & Disclaimer
All horsepower and torque ratings are approximate factory test data from Blueprint Engines.
Actual performance depends on final setup, fuel, and tuning calibration.
This engine is supplied as a dressed long block and may require external components for complete installation.
It is not certified for emissions-controlled vehicles unless otherwise specified.
Professional installation is strongly recommended.
Reviews
Questions & Answers
No Questions
Did you find what you were looking for?
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.







by Leo Coleman
by Liam Anderson