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Atk High Performance Ford 347 Stroker 410 Hp Stage 3 Long Block Crate Engines With Efi Hp20C-Efi
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$4,800.00
The ATK High Performance Ford 347 Stroker Stage 3 Long Block with EFI (HP20C-EFI) delivers 410 horsepower of high-performance power for Ford vehicles, classic Mustangs, and modern street builds.
This fully assembled, fuel-injected long block ensures turnkey installation, consistent performance, and reliable operation, making it ideal for street, performance, or restoration projects.
Condition: New
The Ford 347 Stroker Stage 3 Long Block (Part #HP20C-EFI) is engineered for enthusiasts seeking maximum performance with modern fuel injection technology.
Stage 3 builds include forged internals, high-performance camshaft, precision-balanced rotating assembly, and EFI-ready setup, providing optimized power, efficiency, and street usability.
Included Components:
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Engine block
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Cylinder heads
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Stage 3 performance camshaft
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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
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EFI-ready components for fuel injection installation
Performance Overview:
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347 C.I.D. (5.7L) Stroker V8 engine
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410 horsepower output
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Stage 3 performance build
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EFI-ready for modern fuel-injected setups
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Compatible with Ford vehicles, Mustangs, and muscle cars
Key Features
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ATK High Performance Ford 347 Stroker Stage 3 long block
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410 horsepower output
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Fully assembled, factory-tested, EFI-ready
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Includes all critical engine components for installation
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Engineered for street, muscle car, and mild performance builds
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | ATK High Performance |
| Part Number | HP20C-EFI |
| Engine Type | V8, Ford 347 Stroker |
| Configuration | Stage 3 Long Block Crate Engine with EFI |
| Displacement | 347 C.I.D. / 5.7L |
| Horsepower | 410 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 Injection Compatible) |
| 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, EFI-ready components |
| Recommended Use | Ford vehicles, Mustangs, muscle cars, street builds, mild performance, restoration projects |
Compliance & Disclaimer
Horsepower and torque ratings should be verified with ATK High Performance specifications.
Professional installation and proper break-in procedures are recommended.
EFI setup may require compatible fuel injection components.
Not certified for emissions-controlled vehicles in all regions.
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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 Mason Garcia
by Tania Putri