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Atk High Performance Gm 350 Vortec 350 Hp Stage 3 Long Block Crate Engines With Efi Hp32C-Efi
$3,000.00
The ATK High Performance GM 350 Vortec Stage 3 Long Block with EFI (HP32C-EFI) delivers 350 horsepower of high-performance power with electronic fuel injection (EFI) compatibility for modern GM vehicles.
Fully assembled and factory-tested, this crate engine ensures durability, reliable performance, and easy installation, making it ideal for street, track, and restoration projects.
Condition: New
The GM 350 Vortec Stage 3 Long Block with EFI (Part #HP32C-EFI) is engineered for enthusiasts seeking enhanced performance with modern fuel delivery efficiency.
This Stage 3 long block features precision-engineered components, a high-performance cam, and EFI readiness, providing a turnkey upgrade for GM vehicles with electronic fuel injection systems.
Included Components:
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Engine block
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Cylinder heads
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Camshaft and valve train
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Rotating assembly (crankshaft, rods, pistons)
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Oil pan
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Timing components
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Valve covers
Performance Overview:
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350 C.I.D. (5.7L) V8 Vortec engine
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350 horsepower output
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Stage 3 high-performance configuration
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EFI-ready long block for modern GM applications
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Fully assembled for turnkey installation
Key Features
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ATK High Performance GM 350 Vortec Stage 3 long block
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350 horsepower output
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EFI-ready for electronic fuel injection systems
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Fully assembled and factory-tested
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Includes all critical engine components for installation
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Engineered for street, track, and restoration builds
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | ATK High Performance |
| Part Number | HP32C-EFI |
| Engine Type | V8, GM 350 Vortec |
| Configuration | Stage 3 Long Block Crate Engine |
| Displacement | 350 C.I.D. / 5.7L |
| Horsepower | 350 Hp |
| Torque | Check Manufacturer Specs |
| Block Material | Cast Iron |
| Cylinder Heads | Aluminum |
| Crankshaft | Forged Steel |
| Connecting Rods | Forged Steel |
| Pistons | Forged Aluminum |
| Camshaft Type | Stage 3 Performance Cam |
| Fuel System | EFI Ready |
| Fuel Type | Gasoline |
| Ignition System | Not Included |
| Cooling System | Water-Cooled |
| Condition | Brand New / Factory-Tested |
| Country of Origin | United States |
| Included Components | Block, heads, camshaft, rotating assembly, valve train, oil pan, timing components, valve covers |
| Recommended Use | GM Vortec-equipped vehicles, EFI street builds, performance restorations |
Compliance & Disclaimer
Horsepower and torque ratings should be verified with ATK High Performance specifications.
Professional installation and proper break-in procedures are recommended.
Not certified for emissions-controlled vehicles in all regions.
Questions & Answers
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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.






