Atk High Performance Gm 350 330 Hp Stage 1 Long Block Crate Engines Hp291P
$1,200.00
The ATK High Performance GM 350 Stage 1 Long Block (HP291P) delivers 330 horsepower of reliable performance for Chevrolet vehicles, trucks, and classic builds.
Fully assembled and factory-tested, this crate engine ensures durable power, consistent operation, and a turnkey installation solution for street, track, or restoration projects.
Condition: New
The GM 350 Stage 1 Long Block (Part #HP291P) is designed for enthusiasts seeking high-performance upgrades with dependable construction.
This Stage 1 long block features precision-engineered components, a balanced rotating assembly, and a Stage 1 camshaft, making it ideal for Chevrolet and GM vehicle upgrades.
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 engine
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330 horsepower output
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Stage 1 performance build
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Fully assembled long block for turnkey installation
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Compatible with GM vehicles, trucks, and classic muscle car builds
Key Features
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ATK High Performance GM 350 Stage 1 long block
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330 horsepower output
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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 | HP291P |
| Engine Type | V8, GM 350 |
| Configuration | Stage 1 Long Block Crate Engine |
| Displacement | 350 C.I.D. / 5.7L |
| Horsepower | 330 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 1 Performance Cam |
| Fuel System | 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 | GM vehicles, trucks, muscle cars, 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.
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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 Tommy Peterson
by Alicia Fernandez