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Blueprint Engines Gm 400 C.I.D. 508 Hp Drop-In-Ready Efi Long Block Crate Engines Bp4002Ctfd
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$4,800.00
The Blueprint Engines BP4002CTFD is a GM 400 cubic inch small block drop-in-ready long block crate engine producing approximately 508 horsepower and 520 lb-ft of torque.
Equipped with factory-installed electronic fuel injection (EFI), this engine is designed for easy installation, modern drivability, and high performance in street rods, classic GM builds, and performance vehicles.
Condition: New
The Blueprint Engines GM 400 C.I.D. 508 HP Drop-In-Ready EFI Long Block (BP4002CTFD) combines Chevrolet 400 small block architecture with modern EFI technology, delivering consistent throttle response, improved fuel efficiency, and reliable power output.
This drop-in-ready long block comes fully dressed with cylinder heads, valve covers, oil pan, timing cover, valve train, and EFI system, minimizing installation effort and setup time.
Each engine is blueprinted, balanced, and dyno-tested at Blueprint’s U.S. facility to ensure performance and reliability.
Performance Overview:
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Factory dyno-tested output: approximately 508 HP and 520 lb-ft torque
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400 cubic inch (6.6 L) Chevrolet small block platform
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Fully dressed with EFI system for modern fuel delivery
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Hydraulic roller camshaft for smooth, responsive torque
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Ideal for street rods, classic GM restorations, and performance builds
Key Features
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GM 400 C.I.D. small block V8 configuration
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Drop-in-ready long block with pre-installed EFI and components
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Hydraulic roller camshaft for smooth torque delivery
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Balanced and blueprinted rotating assembly for durability
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Aluminum or cast cylinder heads for improved airflow
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Factory dyno-tested to verify horsepower and torque
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Ready for modern performance installations
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | Blueprint Engines |
| Part Number | BP4002CTFD |
| Series | GM 400 Drop-In-Ready EFI |
| Engine Type | Chevrolet Small Block V8 |
| Configuration | Fully Dressed Drop-In Long Block |
| Displacement | 400 Cubic Inches (6.6 Liters) |
| Horsepower (Factory Tested) | Approx. 508 HP |
| Torque (Factory Tested) | Approx. 520 lb-ft |
| Block Material | Cast Iron |
| Cylinder Heads | Aluminum |
| Crankshaft | Forged Steel |
| Connecting Rods | Forged Steel |
| Pistons | Forged Aluminum |
| Camshaft Type | Hydraulic Roller |
| Compression Ratio | ~10.0:1 |
| Fuel System | Factory-Installed Electronic Fuel Injection (EFI) |
| Fuel Type | Gasoline |
| Ignition System | Not Included |
| Cooling System | Water-Cooled |
| Condition | Brand New |
| Country of Origin | United States |
| Included Components | Cylinder heads, valve train, oil pan, timing cover, valve covers, EFI system |
| Recommended Use | Street rods, hot rods, classic GM builds, performance restorations |
Compliance & Disclaimer
All horsepower and torque figures are approximate manufacturer dynamometer results.
Actual output may vary depending on intake, exhaust, and tuning setup.
This engine is designed for performance and off-road use and is not certified for emissions-controlled vehicles.
Professional installation and proper break-in procedures are 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.
by Ava Martinez
by Noah Johnson