Atk High Performance Chrysler 360 Magnum 320 Hp Stage 3 Long Block Crate Engines With Efi Hp73C-Efi
$3,600.00
The ATK High Performance Chrysler 360 Magnum Stage 3 Long Block (HP73C-EFI) delivers 320 horsepower of dependable high-performance power for Chrysler vehicles, classic muscle cars, and street builds.
Fully assembled and factory-tested, this long block features EFI-ready capability for modern fuel delivery systems, offering reliable performance and turnkey installation.
Condition: New
The Chrysler 360 Magnum Stage 3 Long Block (Part #HP73C-EFI) is designed for enthusiasts who want enhanced performance with fuel-injection readiness.
This Stage 3 long block includes precision-engineered components, a balanced rotating assembly, high-performance camshaft, and upgraded internals, making it ideal for street, mild performance, and restoration builds.
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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360 C.I.D. (5.9L) Magnum V8 engine
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320 horsepower output
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Stage 3 performance build
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EFI-ready for modern fuel injection systems
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Fully assembled long block for turnkey installation
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Compatible with Chrysler vehicles, classic muscle cars, and street builds
Key Features
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ATK High Performance Chrysler 360 Magnum Stage 3 long block
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320 horsepower output
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EFI-ready for modern 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, mild performance, and restoration builds
Key Technical Specifications
| Specification | Details |
|---|---|
| Brand | ATK High Performance |
| Part Number | HP73C-EFI |
| Engine Type | V8, Chrysler 360 Magnum |
| Configuration | Stage 3 Long Block Crate Engine |
| Displacement | 360 C.I.D. / 5.9L |
| Horsepower | 320 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 (Not Included) |
| 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 | Chrysler 360 vehicles, muscle cars, street builds, mild performance upgrades, EFI conversions |
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.
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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 Samuel Reed
by Samuel Reed